Winter 2017

VOLUME 14 l NUMBER 3

WINTER 2017

A ROOF TO LAST

A LIFETIME

How metal overhead can outlast the competition

Raising the Bar for ASM

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RoofStar Guarantee Standards

Record Keeping 101

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CONTENTS VOLUME 14 l NUMBER 3 ROOFING BC is the official publication of the Roofing Contractors Association of British Columbia (RCABC).

Each issue highlights news and views about current developments in the roofing industry, interesting projects, information about new and emerging technologies, and news from the association to increase readers’ expertise in the roofing industry. ROOFING BC is the powerful voice to speak on behalf of BC’s roofing industry, and continues to create lasting impact with industry leaders and construction professionals.

WINTER 2017

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Published quarterly for:

Roofing Contractors Association of British Columbia 9734 – 201 Street Langley, BC V1M 3E8 E-mail: roofing@rcabc.org www.rcabc.org

16

Published By:

33 South Station St. North York, ON M9N 2B2 Tel: (866) 480-4717 robertt@mediaedge.ca

22

531 Marion St. Winnipeg, MB R2J 0J9 Toll Free: (866) 201-3096 Fax: (204) 480-4420 www.mediaedgepublishing.com President Kevin Brown Senior Vice-President l Publisher Robert Thompson Director, Business Development Michael Bell Branch Manager Nancie Privé Senior Editor Ali Mintenko-Crane Senior Design Specialist James Mitchell Design Specialist Kelli McCutcheon Sales Executives Ashley Huston, Dawn Stokes While information contained in this publication has been compiled from sources deemed to be reliable, neither the publisher nor the RCABC will be held liable for errors or omissions. The opinions expressed herein are not necessarily those of the publisher or RCABC. All rights reserved. The contents of this publication may not be reproduced by any means, in whole or in part, without the prior written consent of the association.

Published December 2017 Publication Mail Agreement # 40787580 Return undeliverables to: Roofing Contractors Association of British Columbia (RCABC) 9734 – 201 Street, Langley, BC V1M 3E8

Roofing BC is printed on 10% post-consumer FSC certified paper using soya based inks. When necessary to mail an issue in an enclosure, we use an environmentally-friendly, 100% oxo-degradable poly-wrap.

18

COVER 10 A Roof to Last a Lifetime

How metal overhead can outlast the competition

FEATURES 16 RCABC Member Profile

Raven Roofing: Surrey roofer’s success based on staying ahead of the curve

18 Raising the Bar for ASM RoofStar Guarantee Standards Significant revisions will be launched in early 2018

22 Record Keeping 101

Storage of commercial insurance policies

24 Faces of the Trade

Trevor Hynds: Sheet Metal Superintendent, Metro Roofing & Sheet Metal Ltd.

28 Membrane Adhesion to “Green” Concrete

RCABC undertakes study to evaluate adhesion to freshly poured concrete

DEPARTMENTS 6 President’s Message 8 RCABC Update 30 Professional Services Directory www.rcabc.org l 5

PRESIDENT’S MESSAGE

HOWARD SCHLAMB RCABC President

T

REFLECTIONS

he year is quickly drawing to a close, and as I reflect on the past 12 months I am pleased to see how our industry has persevered and come ever so close to the light at the end of the tunnel.

We have had to deal with many extremes in 2017. From record amounts of snow and rain to excessive temperatures and raging wildfires that scorched the countryside, our roofing contractors have worked diligently to finally come closer to being back on schedule. Although we haven’t quite got caught up, the overall picture is looking more rosy than it did a few short months ago.

Although there are always worries and concerns in the construction industry, the beauty of roofing is that every building needs a roof and every building needs that roof replaced once or twice in its life cycle. There is also the ongoing maintenance of that infrastructure which constantly keeps work on our books. It may feel like a never-ending cycle, but at the end of the day we can all be thankful to have a consistent workload.

For now, as we anticipate the upcoming winter months, we are still at the mercy of Mother Nature. Preliminary forecasts released by the Farmer’s Almanac and Accuweather thus far indicate a drier and warmer winter for the province this year.

Let me tell you, reflecting on last winter, our industry definitely has its fingers crossed.

It has been an honour and a privilege to have been the president of the Roofing Contractors Association of British Columbia this past year. I am proud to have been a part of this forward thinking, progressive association that continues to work hard to represent the industry in all regions across the province.

I would like to thank all of my industry colleagues who take time out of their busy schedules to volunteer their time on various RCABC committees, as well as those who comprise the board of directors. This generous contribution of time is so very important for the health and growth of this professional association.

Additionally, I would like to recognize the efforts of RCABC CEO Bryan Wallner and the wonderful staff who continue to construct a solid foundation for the association to build upon.

Through their hard work and dedication, our association truly remains at the forefront of this industry.

With December upon us, the RCABC is once again gearing up for its Annual General Meeting, Awards Luncheon and Reindeer Rampage being held at the River Rock Casino & Resort in Richmond. During the AGM, I will be passing the gavel to the incoming president who will be elected at that time.

In closing, I am looking forward to continuing on the RCABC board of directors in the capacity of past president.

Collectively we will continue to face the challenges that present themselves in our industry and make the tough decisions to help us all be successful.

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RCABC UPDATE

BRYAN WALLNER Chief Executive Officer, RCABC

PAYING HOMAGE TO THE PAST WHILE EMBRACING CHANGE

A

gain this year, RCABC has taken every opportunity to promote our members and the new Roofing Practices Manual.

Most recently, a committee of Active Members, consultants and staff updated the Metal Standards relied upon by many in the design and consulting community.

On October 26th, James Klassen, RCABC Technical Advisor and Judy Slutsky, Director Business Development, presented a session to over 50 design authorities and consultants in association with the AIBC Vancouver Island Chapter.

Attendees included AIBC, BCBEC, CSC members and RCABC Accepted Inspectors. Continuing education credits were provided by AIBC and RCI.

The session was focused on gaining a better understanding of how to more effectively find and interpret the RCABC standards by roof system.

Recent changes to make the standards more user friendly including; picture links, sortable tables and downloadable technical data sheets were featured.

The session was presented via an online tour of the Roofing Practices Manual and there was great feedback, including examples of how the RPM and standards help promote quality roofing and provide a basis for conflict resolution when it occurs.

8 l ROOFINGBC l WINTER 2017

It was my pleasure to eat lunch and spend some time with John Wells, RRO, RCI Member Emeritus and founder of J.W. Wells Consulting.

He was also Technical Manager at RCABC for a time when the Roofing Practices Manual was reformatted and re-written and grew into an annual 10 lb. book of best practices. It was great to hear from someone so instrumental in the early days of one of the cornerstones of RCABC. Stories from throughout his long career helped drive home the important roles that design authorities, consultants, and contractors play within RCABC and the Guarantee program.

John is also keenly aware of the changes that have occurred, are occurring and will occur in the future within our industry. As John said more than once, “change, there’s that word again; the only thing certain is that change will happen and continue to impact our industry.”

At RCABC we continue to pay homage to the past while embracing change that will provide opportunities for our members as well as value and quality to building owners, design authorities and consultants across the province.

If you would like a similar presentation in your part of the province, please contact RCABC at 604.882.3421.

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COVER

A ROOF TO LAST

A LIFETIME

By RICHARD WOODBURY

How metal overhead can outlast the competition 10 l ROOFINGBC l WINTER 2017

J

ason Payne is a fan of metal roofs for many reasons, but one in particular stands out. “As long as your roof is maintained, it will for sure last for your lifetime. If you’re just buying a house and you’re 30, you will never replace it,” says the branch manager for Cascadia Metals in Langley.

And it’s not just homes or commercial spaces. He points out that if you head to farming country, metal roofs on barns that date back to the 1950s are still intact.

These days, Payne says he’s seeing interest from customers in three particular product lines.

The first uses a silicone-modified polyester (SMP) paint and is an affordable and durable option. “The pros of an SMP smooth are it’s a readily-available painted product. It’s the widest-used paint in this marketplace and the paint is getting better and better every year,” he says. “Twenty years ago, I don’t think I even had a 10-year warranty [for it], but

COVER

“Maintenance for all metal roofs is key to increase the projected lifespan of the product, especially for heavily treed areas or places where more particulate is in the air..” because of better science and better paint manufacturing, we are able to do a 40-year limited warranty.”

A second option, polyvinylidene fluoride (PVDF), has been on the market for several years and its popularity has grown rapidly. It’s a higher end finish equivalent to the trademarked Kynar 500. “It’s becoming much more popular with people because it’s a higher-end paint, it holds its colour longer, so the fade retention is less, it has less chalking, it’s just an all-around better product, so we’ve been seeing more of a switch to that paint system,” says Payne. He says the only downside of the product is that it scratches a little easier because it uses a softer paint. For that reason, a protective coating is put on the sheet product to protect the paint.

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One of the important things with paint is maintenance. Payne suggests rinsing the metal with regular tap water (using your garden hose) two or three times to get rid of particulate deposits.

The reason is similar to why people should wash their cars regularly as it helps to prolong the life of the paint.

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Maintenance for all metal roofs is key to increase the projected lifespan of the product, especially for heavily treed areas or places where more particulate is in the air, says Payne.

While a higher-end product, PVDF comes with a 25-year limited warranty, in contrast to the 40-year limited warranty on SMP smooth.

Payne says the difference is because it is a relatively new paint system and the mills and paint companies don’t have weathering data yet.

With time, he expects the warranties will lengthen as more data is collected.

A third product option provides a compelling visual look because of its texture.

C a s c a d i a TEX, which only became

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COVER

available within the last year, has a feel like that of sandpaper with around 180 grit. One of the advantages of this is its scratch resistance. “Because it has that pebbly, sandpapery feel to it, it doesn’t scratch as easily,” says Payne.

Cascadia TEX uses a low-gloss finish.

Payne says if you were to compare SMP smooth to Cascadia’s TEX on a roof and use the same colour for both, the

specular reflection – or how both products reflect light – would be readily apparent. “On the textured material [Cascadia’s TEX] … you don’t have the glare of the sun or any light that’s giving it different colours. It will just always maintain its colour from whatever angle you look at it,” says Payne.

well. “Cascadia TEX gives the surface a different texture that redirects light, which results in more visual depth compared to a standard smooth paint finish. It creates subtle shading that sometimes – depending on the colour – results in a shimmer to the coating,” says Payne.

Cascadia TEX provides a visually compelling look for other reasons as

Asked about downsides, Payne says he can’t think of any. Given its textured

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COVER surface, would that mean Cascadia TEX holds more dust and particulate than the SMP smooth? He says testing has found that isn’t the case.

Cascadia TEX comes with a 40-year limited warranty, just like SMP smooth.

So, who are these different products a good fit for? Payne says SMP smooth and PVDF are evenly represented in both the residential and commercial markets. However, Cascadia TESX is based largely in commercial use.

However, Cascadia TEX is dominated by commercial use, which Payne pegs at about 80 per cent. However, because of its striking textured look, this has also become appealing to homeowners. “A lot of people in residential like something different. They like something newer or different than Bob down the street,” says Payne.

From a pricing perspective, the most affordable option is SMP smooth.

PVDF is more expensive by about 29 per cent. It’s important to note that this does not mean a roofing installation will cost 29 per cent more, which is something Payne says customers sometimes assume. Finish is only one facet of many that make up the overall cost of the roof.

Payne says that for a typical 3,000 square foot roof, the added price to go with PVDF over SMP smooth will only increase the total price of the job by about $700, a small fraction of the overall roofing cost.

Asked which finish provides the best value, Payne says the SMP smooth paint is his choice. It has the same galvalume substrate as the other products and its warranty is for 40 years. Using a car analogy, Payne says SMP smooth is like getting a Toyota, a solid, durable car, but if you’re looking for something higher end, you’ll get a Cadillac, which he likens to PVDF. Regardless of which option a person is considering, it’s important to keep in mind that all options are good ones.

“Maintained properly, metal roofs will last my lifetime and my kids’ lifetime,” says Payne.

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RCABC MEMBER PROFILE

By JAMES PETERS

Surrey roofer’s success based on staying ahead of the curve

RAVEN ROOFING What’s in a Name?

When Neil Rook was toying with various names for his new construction company, he and his original business partner ultimately settled on “Raven Roofing,” for a variety of reasons.

Alliteration aside, Rook felt that “raven” had a subliminal, West Coast feel. Bill Haida’s famous The Raven and the First Men sculpture has certainly helped shape that association. Rook adds, “We wanted a business name that didn’t include any part of our surnames – something that had a bit of flair.”

In the Beginning

Raven Roofing got its start in 1995 in Surrey, when Rook and his partner created the company. Rook’s philosophy at the time was simple: “We wanted to run an ethical, professional and

innovative roofing installation business – and those principles have served us pretty well over the years. From the very beginning, we focused our efforts on the commercial side of roofing, not the residential.” From its original location in a small urban area, the roofing company now operates out of a 35,000 square foot facility at 18988, 34A Avenue in Surrey. Raven Roofing’s service territory goes well beyond Surrey’s municipal boundaries, including projects throughout most of southern B.C. and the Fraser Valley.

Almost 10 years after start-up, Rook bought out his original partner and soon joined forces with another: Jim Bannigan.

Together, the two directors oversee most of what takes place at Raven Roofing on a daily, weekly and monthly basis. Rook says, “We like to stay pretty contained without feeling the need to bid on every new job that comes along and then over-extending our resources. That way we can keep our collective eyes on the ball and spend more time managing the details.”

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Like much of the construction industry, the roofing business goes through regular cycles where new materials, equipment and the skills necessary to install them are introduced – often corresponding with demands from new clients. Rook says, “Architects and designers are usually very interested in new materials – as they should be – but that also comes with a cost to those of us in the trade, in terms of the learning curve and the new equipment that’s sometimes required. We like working with the latest technologies as well, but it can definitely be a double-edged sword at times.”

Rook adds, “Materials are easy to acquire but hiring and keeping good tradespeople isn’t; young people today just

RCABC MEMBER PROFILE aren’t as interested in doing this kind of work as they once were – and that’s a constant struggle. Having been in the business for over two decades we’ve seen a pretty big shift in the demographics.”

Raven Roofing has enjoyed much success in B.C.’s competitive construction industry, expanding its reach and adding to its revenues almost every year. But alluding to the general shortage of manpower on occasion, Rook says, “Unfortunately we’ve had to turn some jobs away simply because of the lack of available labour. We’re usually happy to bid on any number of new projects but sometimes we just don’t have enough ‘boots on the roof ’ available.”

Raven Roofing doesn’t shy away from intellectually challenging projects.

These include the John Paul II Pastoral Centre, a 30,000 square foot LEEDcertified building situated in Vancouver that incorporates an R20 insulated SBS membrane roof, reflective concrete roof panels, and additional waterproofing over parking. “The reflective roof board we used on this project,” says Rook, “creates a strong energy-efficient component together with a visually appealing surface.

New headquarters for the RCMP E Division also showcase Raven’s work and capacity for large projects. Located at 14200 Green Timbers Way in Surrey, the Green Timbers building includes a massive 150,000 square foot TPO membrane roof. Fully adhered, the R30 insulated roof system is installed over concrete.

MEMBERSHIPS AND ASSOCIATIONS

Raven Roofing is a member of the Canadian Roofing Contractors Association, the Roofing Contractors Association of BC and the Vancouver Regional Construction Association.

A Roof Over Your Head

If there’s one message that Rook would like to convey, it’s that there continues to be misunderstandings about the roofing business with the general public – and especially young people who may be about to embark on a career in the trades. Rook says, “Twenty to thirty years ago, roofing was a dirty and difficult job. But with the many advances that have taken place in roofing technology, over the last few years in particular, it has become a very technically advanced and rewarding way to make a living.”

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FEATURE

RAISING THE BAR FOR ASM ROOFSTAR GUARANTEE STANDARDS

By JAMES KLASSEN

A

rchitectural Sheet Metal roofing assemblies offer a unique way to protect steep slope roofs on virtually any kind of structure. Comprised of metal panels that are roll-formed on site or prefabricated by a RoofStar-accepted manufacturer, ASM roofs are non-structural, water-shedding assemblies that can be as basic or as complex as the designer can imagine. Typically formed with steel but also fabricated with copper or zinc panels, these roofs are assembled on a solid deck substrate and are fastened to the deck with hidden clips, or fastened directly to the deck and snapped together with a proprietary overlapping formed lock.

18 l ROOFINGBC l WINTER 2017

The RoofStar Guarantee Standards for ASM Roof Assemblies have undergone a significant revision and that will be launched in early 2018. RCABC is proud of the changes and grateful for the help received from dedicated Members, Consultants and Inspectors.

Changes to the Guarantee Standards include: • Requirements for structural design and loading • Contractor qualifications • Metal panel formation • Curb flashing

FEATURE

Here’s a sneak peek at the changes in store:

Engineered Design

British Columbia’s geography and climate is perhaps the most diverse of any province in Canada, ranging from coastal rainforest and moisture to arid desert and dry plateaus; wind conditions vary considerably too.

That’s why RCABC has introduced new requirements for structural engineering design in ASM Roof Assemblies that qualify for a RoofStar Guarantee.

RCABC recognizes that each roof should be designed for its unique location and the wind, rain and snow conditions it will endure.

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FEATURE Shop Drawings

The new ASM RoofStar Guarantee Standards require field reviewed shop drawings that must be approved by the RCABC before a project begins. This is another level of quality assurance that we’ve built into the RoofStar Guarantee Program, to ensure the roof design is top quality.

Contractor Qualifications

Every guaranteed ASM roof is installed by trade-qualified personnel, an explicit requirement now, in recognition that ASM work is specialized roofing requiring skill and competence.

Curved Panels

Increasingly, roofs designed for ASM assemblies incorporate curves; there’s nothing plain or simple about how RoofStar-guaranteed ASM roofs are designed and constructed. Curves are complex fabrications. The new standards now explicitly require that curved panels be fabricated that way. When that’s not possible, new ASM RoofStar Guarantee Standards require that a professional engineer calculate the stresses a straight panel will be under when it is forced onto a curved deck.

Eave Protection and Underlayment

To ensure clarity about design and application, the new ASM RoofStar Guarantee Standards make explicit statements about the location and orientation of underlayment and eave protection membranes. For example, vertically oriented membranes when the roof slope exceeds 8/12 are now permitted.

RCABC has also introduced air space above a vapour-permeable membrane that is installed above insulation.

Fasteners and Clips

The new ASM RoofStar Guarantee Standards no longer permit the use of gasket-type fasteners in exposed locations. Closed-end, dome-head blind rivets are permissible and even recommended in certain applications.

Clips must now be proprietary; shopmade clips for a mechanically seamed metal panel are not acceptable.

Metal Panels

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Standards will require mill certification for all sheet metal used in an ASM project. RCABC will receive and retain mill certificates on file as part of the application process for a RoofStar Guarantee, once the project is ready to start.

Built-in Gutters

Improved Standards now ensure that built-in gutters will be constructed with membranes heavy enough for the job, and fastened securely to prevent membrane sag. Overflow drains are now mandatory for built-in gutters, to ensure the roof is never vulnerable to water intrusion from the eaves.

Est. 1969

FEATURE Curbs

Curbs are often an essential part of an ASM roof assembly, but need to be designed and placed in order to achieve minimum height requirements and interfere as little as possible with panel seams. When curbs span more than one panel, the new ASM RoofStar Guarantee Standards specify design and construction requirements for the split-pan method utilizing blind rivets. Curbs are divided into three size categories: curbs 36” or smaller in width (no height limitations), those wider than 36” and taller than 8”, and curbs wider than 8’. Large curbs that fall into the last category will now require a built-in gutter along the sides, and a structural water or snow diverter fabricated along the upper side of the curb.

Falls from heights are the leading cause of injuries to construction workers in B.C. Make sure you and your workers have the proper training, fall protection, and equipment to stay safe on the jobsite.

Construction Details

In an effort to make construction illustrations easier to understand, new colour isometric drawings will roll out in the months following the relaunch of the new RoofStar Guarantee Standards for ASM Roof Assemblies.

In time, these will be accompanied by CAD files the RPM user can download and manipulate for architectural detail and shop drawing preparation.

RCABC authored the book on great roofing design standards.

Learn more about the RoofStar Guarantee Program at www.rcabc. org or visit the Roofing Practices Manual at rpm.rcabc.org/index. php?title=Main_Page.

James Klassen is a RoofStar Technical Advisor with the Roofing Contractors Association of British Columbia. He is an experienced roofing estimator, Occupational Health and Safety professional, insurance claims adjuster, and facilities manager, supervising maintenance, grounds, custodial and transportation services, and managing capital project, for a large private school in British Columbia’s Fraser Valley.

Find helpful resources at worksafebc.com/health-safety www.rcabc.org l 21

FEATURE

By TANJA NOWOTNY

RECORD KEEPING 101 Storage of commercial insurance policies

E

ach day insurance policies get signed, sealed and promptly filed away never to have eyes cast upon them again. Amongst the piles of paperwork that quickly accumulate, business owners regularly question the length of time they are required to retain hard copy insurance policy paperwork.

In their efforts to streamline business operations, many company owners have adopted Canada Revenue Agency (CRA) guidelines when it comes to the retention of business paperwork – which is generally in the neighbourhood of three to six years. However, in some cases, the CRA timeframes simply aren’t sufficient.

According to Grant Alsop, Vice President of Construction and Real Estate with Shaw Sabey & Associates Ltd., ideally,

business owners should scan each insurance policy and maintain a digital record of the entire policy for easy access at any time. Additionally, a hard copy of the declaration pages which show the named insured, policy period, policy number and form number should also be retained.

As a guideline, Alsop recommends the following timeframes for retaining the various commercial insurance policies available:

Occurrence-Based Policies

Most commercial general liability insurance policies are occurrence coverage.

An occurrence-based policy protects the policy holder from any covered incident that occurs during the policy period, no matter when a claim is filed. This means policy holders can potentially submit a claim years after the policy period has ended, as long as the event that triggered the claim occurred during the coverage period.

According to Alsop, because of their long-term protection, occurrence-based policies should be kept indefinitely. The Setting The Standard for ELD reason MEMBRANE INTEGRITY SCANNING · LEAK LOCATION SERVICES · STRUCTURE MONITORING for this is that claims could potentially refer to policies Ensuring commercial, institutional and green roofs gets the care they deserve. put in place many years ago.

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FEATURE Claims-Made Policies

Claims-made policies cover claims made against an insured during an active policy period – regardless of when the wrongful act which caused the claim took place.

Commonly used claims-made policies include errors and omissions, directors and officers, and employment practices liability policies.

An example of a claims-made policy is an architect who designs a project in 2012. In 2016, a claim is issued for damage which occurred as a result of that design. The claims-made policy which was in place in 2016 would respond to the potential suit, as opposed to any previously-issued policies.

Since the policy’s coverage is based on when the claim is filed and not the date when the loss occurred, there is a limited chance that they will come into play in the long-term. However, in some cases, extended reporting period (ERP) or “tail” coverage may have been purchased resulting in an extension of coverage for a set period after the policy expires. This ERP coverage extends the period of time a named insured can file a potential claim.

According to Alsop, a general guideline for retaining a hard copy of claimsmade policies is six years, which would provide more than adequate time to hold onto these records.

comparison for renewal purposes, a sufficient guideline for retaining these records is six years.

that business owners maintain workers’ compensation policy records indefinitely.

Workers’ Compensation

Although many business owners question the length of time to retain policy records, the answer is not a one-size-fits-all plan.

While general guidelines vary, the best method is to retain proper records for the timeframes outlined above.

However, in order to create an additional cushion of protection, business owners can take the extra step of creating digital copies of all policies, which won’t take up any space at all – aside from a small section of a computer hard drive.

An employer’s liability for injuries to staff is not affected by time. In fact, there are numerous cases where employees are exposed to health hazards that may take years to develop into a serious condition.

Businesses are responsible for workers’ compensation no matter when the incident occurred. In these cases, the policy that was in effect at the time of the incident can come into play to cover the claim. For this reason, it is crucial

Conclusion

Property Insurance Policies

Property insurance provides protection against most risks to owned, rented or leased property – including fire, theft and some weather damage. Under this category come specialized forms of insurance such as fire insurance, flood insurance, earthquake insurance, home insurance or boiler insurance.

Similar to occurrence-based policies, property policies cover any claim involving a loss that occurred during the policy term. However, unlike an occurrence-based policy claim, property losses are generally reported immediately after they occur.

According to Alsop, because these policies only cover claims that occur during the active period, retaining these documents for claims purposes once they expire is probably not necessary.

However, for tax purposes or coverage

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FACES OF THE TRADE

TREVOR HYNDS

By TANJA NOWOTNY

Sheet Metal Superintendent, Metro Roofing & Sheet Metal Ltd.

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T

revor Hynds has always taken pride in building things with his hands, and when an opportunity arose he promptly took that handiness and launched a successful career in the roofing industry.

“I had a background in carpentry, so I just took my knowledge and skill in working with wood and applied it to a different material,” said the 36-year-old father of two. “Mitering a piece of wood is pretty much the same as mitering a piece of metal.”

Hynds was introduced to the roofing industry in 2003, when a friend working at Metro Roofing & Sheet Metal notified him of a position within the firm. Hynds subsequently applied, was hired in the sheet metal division and quickly rose through the ranks. Driven to succeed, he went from labourer to installer, to lead hand, to foreman, and today he is the sheet metal superintendent, a position which he has held for the past six years.

As the Sheet Metal superintendent with an RCABC firm, Hynds said that there are definitely increased expectations when it comes to quality workmanship.

“As a professional, you want to have the best results possible in everything you do,” he said. “(Working with an RCABC member company), it’s nice to have a standard to abide to and, of course, to strive above.”

It is just this mentality that drove Hynds to look beyond the standard and not rest on his laurels. In 2014, he enrolled in RCABC’s Architectural Sheet Metal Worker training program,

FACES OF THE TRADE which was implemented by the association in 2008.

“The RCABC schooling is a much broader spectrum of what I actually do on the job every day,” Hynds said. “I wanted to learn about the rest of what is involved in the trade. I wanted to learn about decking, I wanted to learn about welding, I wanted to learn about all the other things that I don’t do on a daily basis, but I see in the construction trades.”

Hynds said that attending the classes was so convenient because his shop in Langley, B.C., was so close to the RCABC headquarters where the course was taking place.

“It was so convenient for me to go to school,” he said. “It took me three years, at six weeks per year to complete the training. Mid-way through my schooling, I had to defer a year because I had a freshly born baby and didn’t have time for anything else.”

Having completed the program last year to finally receive his Architectural Sheet Metal Worker ticket, not only did Hynds excel at his studies, he truly exceeded the standard. In fact, this year he was recognized with the RCABC Top Architectural Sheet Metal Apprentice Award, excelling in technical training and rising to the top of the class in all regions of the province.

“I knew I was the top of my class, but I didn’t have a clue that I was the top across all of British Columbia,” he said.

“That was news to me.”

When asked how he felt winning this award, Hynds mused, “It made me realize that I really am good at my job. I’ve been saying that all these years, and now I actually proved it.”

With his ticket in hand, Hynds said that the training doesn’t stop once you’ve gone through the schooling aspect. In this industry learning happens virtually every day.

“There are new products and materials coming out like crazy,” he said.

“There are tons of new systems for walls like composite and concrete panels.

Obviously with the new systems comes new machinery, so you’re learning something new almost every day.”

For example, Metro Roofing recently purchased a new roll form machine. In order to be proficient in using this new equipment, Hynds said that he and the other cladding superintendent attended a one-day training program with the manufacturer to learn the intricacies of the new technology.

Although he still uses older tools and machinery on occasion, Hynds said it’s important to stay abreast of all the latest technologies available in the industry.

“You’ve got to stay relevant to your

trade,” he said. “If you don’t, you’re going to fall behind and potentially fall out of the trade.”

Even though there are challenges that present themselves on a daily basis, Hynds said that, for the most part, his 14-year career continues to be satisfying.

“If you like working outside, this job is perfect,” he said. “It’s not always boring because the scenery changes and the projects vary. My favourite thing is seeing the results of a hard day’s work. I like being outside working with my hands

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FACES OF THE TRADE

““You learn new things from those who come before you and you also learn how not to do things sometimes. The company I work for allowed me the creative freedom as long as it met the standards. That experience was huge in expanding my skills.”

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CONSULTING. ENGINEERING. DESIGN.

and making something out of nothing.

It’s satisfying to see the final results.”

Over the years, Hynds has been involved in so many projects; it’s hard for him to pick a favourite as he takes great pride in all of the work he is involved in.

“I did a lot of work on the Hillcrest Pavilion – the curling rink which was constructed for the 2010 Olympics,” he said. “We’re working on a school right now in Port Moody that has a combination of metal and composite concrete panels going up on the walls. Although this is a system which utilizes different materials, the application is virtually the same.”

Hynds said that the work itself may not be too labour intensive, but there certainly are challenges that can arise on the jobsite. Compared to roofing membranes which simply follow a building’s imperfections, metal is straight and rigid, and doesn’t just fall into place.

Hynds said there are techniques that are regularly utilized to work around a building’s shortcomings, resulting in a final product that looks straight to the eye.

“Working on projects with imperfections can get a bit daunting at times, but at the end of the day, if you’ve done a great job and it looks good, you feel pretty satisfied,” he said.

Having come a long way and succeeding in the trade in a short amount of time, Hynds said he is satisfied with his accomplishments thus far. He also attributes a lot of his success to those he has worked with along the way.

“You learn new things from those who come before you and you also learn how not to do things sometimes,” he said. “The company I work for allowed me the creative freedom as long as it met the standards. That experience was huge in expanding my skills.”

In terms of the future, Hynds said he has no intention to leave the trade, and looks forward to the new experiences and learning opportunities that will come his way.

“As long as the trade will have me, I’ll keep plugging along,” he said. “I recently became sheet metal superintendent and I think that is a pretty big step. For now, I will enjoy this role.”

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FEATURE

MEMBRANE ADHESION TO “GREEN” CONCRETE

By LAURENCE MATZEK, DIRECTOR, ROOFSTAR GUARANTEE PROGRAM

R

oofing contractors are often asked by general contractors to begin roof installation within the first 28 days after concrete has been poured. The Roofing Contractors Association of British Columbia (RCABC) RoofStar Guarantee Standards do not permit roofing within the first 28 days after concrete has been poured, but also defer to a structural engineer any decision to apply roofing assemblies sooner; the structural engineer must expressly permit it. Of course, professionals are reluctant to do this, because concrete strength cure time differs from concrete moisture evaporation rates.

Specifically, adhesion of bituminous membranes to “green” concrete can be problematic, commonly evidenced by the development of membrane blisters and delamination of the membrane from the concrete after application.

Manufacturers of SBS-modified bituminous membranes differ in their requirements for minimum concrete cure time before membranes can be applied, but none offer an objective benchmark or value by which their standards are established. The best they offer is the subjective comment, “well bonded.” But changes to the National Building Code of Canada (NBCC) in 2015 offer the possibility of a new approach. In 2015, the NBCC introduced new mandatory wind up-lift design requirements for conventional roof assemblies installed over any roof deck, including concrete, whether green or cured. This included the requirement that roof designs meet or exceed wind loads calculated for each building’s type and location; calculations can be performed using an online

28 l ROOFINGBC l WINTER 2017

calculator developed by the National Research Council of Canada. While various provincial authorities have been slow to follow the lead of the NBCC, the RCABC RoofStar Guarantee Standards adopted the NBCC requirements in early 2017. Calculated wind loads offer us a new benchmark by which to evaluate the adhesion of modified bitumen membranes on concrete. Using this as a premise, the RCABC undertook a study to evaluate self-adhering and torch-applied SBS-modified bituminous membranes bonded to progressively aging freshly poured concrete.

Leslie Peer, PhD (Eng), P.Eng., FEC, RRC, LEED® AP O+M of Read Jones Christoffersen Ltd., agreed to assist the RCABC and develop research parameters to address the question of membrane adhesion. The abstract paper for this research, presented at the 15th Canadian Conference on Building Science and Technology in Vancouver, B.C. on Nov 8, 2017, can be found by following this link: http://www.rcabc.org/news/ Tests were performed on two concrete slabs cast in Langley at the RCABC facility, in July 2016. Instrumentation was embedded within the slabs to collect data on moisture, relative humidity, and other relevant data. Air temperature and rainfall were also recorded during the research period. Pull tests on SBS-modified bituminous membranes were conducted on days 1, 3, 7, 11, 14, 18, 21, 28, 35, and 56, on areas where no blisters were visible by sight or touch, thereby achieving the best possible results.

The following is a summary of the observations from the research:

• The torch-applied membranes achieved better adhesion than self-adhesive membranes, but they also blistered more •A dhesion improved significantly by day 18, and afterwards • When membranes were installed prior to 28 days after concrete was poured, they suffered bond reduction over time • When membranes were installed after 28 days after concrete was poured, they showed bond strengthening over time • Concrete exposed to rain measurably reversed the drying of concrete • Moisture in the slab seems to affect long-term bond results The results of this initial research support the current RoofStar Guarantee standards, which permit membrane application to concrete only after 28 days of cure time. Furthermore, it is noteworthy that membranes applied to the concrete on or after 28 days bonded well enough to exceed wind load calculations for many high-rise applications. Nevertheless, we must keep in mind that these results were obtained in optimum summer weather conditions.

As with any research, this study raised more questions than it answered.

For example, since the study shows that concrete moisture levels spiked after a rain event, how does the constant wet (and sometimes cool) weather of regions like Metro Vancouver, outside of summer months, affect membrane adhesion even after 28 days? Stay tuned as we develop the parameters for this project.

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PROFESSIONAL SERVICES DIRECTORY VOLUME 14 l NUMBER 3 WINTER 2017 ADHESIVES/SEALANTS Menzies Metal Products.......................................13 www.menzies-metal.com

PAVER PEDESTALS Envirospec Inc....................................................25 www.envirospecinc.com

ROOFING INSULATIONS Atlas Roofing Corporation................Inside Front Cover www.atlasroofing.com

ASPHALT Bitumar Inc........................................................27 www.bitumar.com

RESIDENTIAL/COMMERCIAL MODIFIED ROOFING Malarkey Roofing Products...................................15 www.malarkeyroofing.com

ROOFING MATERIALS Cedar Grove Roofing Supply.................................27 www.cgrs.ca

BUILDING ENVELOPE & ROOFING DISTRIBUTOR Roofmart...........................................................19 www.roofmart.ca

ROOF ACCESSORY PAINT Menzies Metal Products.......................................13 www.menzies-metal.com

Topside Consulting (2004) Ltd.............................14 www.topsideconsulting.ca

ROOF CONSULTANTS Roof Tech Consultants Ltd.....................................20 www.rooftechconsultants.ca

BUILDING ENVELOPE MATERIAL DISTRIBUTOR Convoy Supply Ltd....................... Outside Back Cover www.convoy-supply.com

ROOF VENTILATION Menzies Metal Products.......................................13 www.menzies-metal.com

BUILDING SCIENCE ENGINEERS IRC Building Sciences Group.................................26 www.ircgroup.com BUILDING SCIENTISTS & CONSULTANTS Specifex............................................................12 www.specifex.com CAULKS & SEALANTS Menzies Metal Products.......................................13 www.menzies-metal.com CONSTRUCTION MATERIALS Brock White Construction Materials........................13 www.brockwhite.ca CONSTRUCTION SAFETY TOOLS Pro Gripping Tools...............................................12 www.progrippingtools.com CONSULTING ENGINEERS Aqua-Coast Engineering Ltd..................................14 www.aqua-coast.ca CUSTOM FLASHINGS Menzies Metal Products.......................................13 www.menzies-metal.com DRAINAGE Menzies Metal Products.......................................13 www.menzies-metal.com FALL PROTECTION SYSTEMS Innovative Fall Protection Inc................................27 www.innovativefallprotection.com LEAK DETECTION SERVICES Detec Systems...................................................22 www.detecsystems.com

30 l ROOFINGBC l WINTER 2017

ROOFING & SHEET METAL CONTRACTORS Interior Roofing (2011) Ltd...................................6 www.interiorroofing.com Laing Roofing Ltd................................................17 www.laingroofing.com Mack Kirk Roofing & Sheet Metal.........................16 www.mackkirkroofing.com Nelson Roofing & Sheet Metal Ltd.........................23 www.nelsonroofing.com ROOFING & SHEET METAL SUPPLIES Menzies Metal Products.......................................13 www.menzies-metal.com Precision Metals Ltd............................................23 www.precisionmetals.ca ROOFING & WATERPROOFING CONTRACTORS Cascade Roofing & Waterproofing (2007) Inc........20 www.cascaderoofing.ca ROOFING ACCESSORIES Menzies Metal Products.......................................13 www.menzies-metal.com ROOFING CONTRACTORS Admiral Roofing Ltd.............................................11 www.admiralroofing.ca Flynn Canada Ltd..................................................9 www.flynncompanies.com Homan Roofing Ltd.............................................26 www.homan.ca ROOFING INSPECTORS Aase Roof Inspection Ltd......................................24 www.aaseroof.com

ROOFING PRODUCTS IKO Industries Ltd..................................................4 www.iko.com ROOFING SHINGLES & MATERIALS GAF....................................................................7 www.gaf.ca ROOFING SUPPLIES Beacon Roofing Supply........................................25 www.brscanada.com ROOFING SUPPLIES & EQUIPMENT Pro-Line Construction Materials..............................14 www.proline-construction.com Western Roofing...................................................8 www.westernroofing.ca ROOFING SYSTEMS & ACCESSORIES Firestone Building Products.....................................3 www.firestonebp.ca ROOFING UNDERLAYMENTS Owens Corning.............................. Inside Back Cover www.owenscorning.com SEALANTS Menzies Metal Products.......................................13 www.menzies-metal.com SHEET METAL Cascadia Metals Ltd..............................................9 www.cmetals.com SNOW GUARDS Menzies Metal Products.......................................13 www.menzies-metal.com STATUTORY AGENCY Worksafe BC......................................................21 www.worksafebc.com UNIONS Sheet Metal Workers’ Local 280...........................27 www.smw280.org WELDING Menzies Metal Products.......................................13 www.menzies-metal.com

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