FOR INVENTORY FILL-INS

DOUGLAS FIR, DIMENSION IN PACKAGED LOTS

Stock Avqilqble F.O.B. Trucks Vernon Yqrd or Long Beoch Dock Toll Free-ZEnith 517l -Don Brown Softwoods... Plywoods... Soshond Doorc. .. Building Moteriols

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2lOO Eost 38th Srreet Los Angeles 58, Cqlif. ADqms 2-5171

Rooftng Moteriols Circulor

In having "a roof over his head" modern man has come far from his cave-dwelling ancestors who depended on nature or later forebears who depended on skin or thatched coverings over their shelters.

But with more complex roofs have come problems-in choice of materials and construction, costs and upkeep-and leaks. To guide today's home builders and owners, the University of Illinois Small Homes Council-Building Research Council has issued an understandable. illustrated circular Roofi.ng Materials."

New roofs, materials and their applications, porches and sun decks, gutters and downspouts, and roofihg problems get attention. o'Most troublesome problem in application of shingle-type roofs is improper nailing," the circular says. o'Too often shingles are nailed too high or with too few nails. When improperly nailed, the shingles lack wind resistance and easily crack or blow off the roof when subject to high winds.

'oFaulty flashings are the reason for more leaks than the roofing materials in residential applications. Improperly applied flashings will open and allow water to penetrate.

"Inadequate attic ventilation can cause condensation on the underside of roof sheathing and drip back, giving the appearance of a roof leak."

P.O. Box 58038, Vernon Brqnch Vernon, Colif. ADsms 2-5171

The circular advises, "To help prevent water from melting ice, or snow from backing up underneath the shingles when gutters are frozen, the gutters should be installed with front edge approximately 2 inches below roof edge. This will allow water to overflow the gutter rather than ponding at the roof edge and flowing beneath the shingles."

A chart in the circular presents relative in-place costs, durability, and maintenance for 13 kinds of material for shingleo roll, or metal roofing. Another chart presents sketches of the materials, details sizes and weights, fire rating, and minimum slope advisable.

Single copies of 'oRoofing Materials" are available free on request until March I from Small Homes Council-Building Research Council, University of Illinois, Urbana. After that date this will be 15 cents as are 33 other circulars issued by the council for home builders and owners.

Costly Forest Visitors

I)eer herds ranging Humboldt county forests are responsible for costly timber and forage losses, accuses a University of California {arm advisor.

By measuring growth rings of small, bush-like, deer-damaged Douglas 6r treeso Humboldt County Farm Advisor Duahne Cooper found that tree growth was delayed rnany vears by deer browsing.

Douglas firs two to three feet tall were found to be 12 to 15 vears old, when they should have reached 24- to S0-foot heiehts. Most of the small trees survive the damaee and eventually reach a size where to'p growth cannot be nipped by deer, but the timber loss in growth years is serious.

To compile adequate information, Simpson Lumber Company oflicials at Eureka cooperated by constructing a deer enclosure ofIl5 acres behind a seven-foot fence. One-hundred Humboldt State Collese students and 80 Simpson employees cooierated in an attempt to clear deer from the enclosure. Fifteen Blacktails were chased out during the first drive, and it is estimated that 15 were left inside. Since that first drive other deer have been removed, but it is believed that at least one buck and two does are still inside.

Still more revealing is that there were five deer-damaged-trees inside the enclosure and 83 outside. Damage comes in loss o{ top stalk, which contains the present year's wood growth plus the following year's bud for future growth.

Douglas fir and redwoods are browsed equally, but newly introduced Monterey pines, which may become a future lumber source, are left practically untouched, the forest study showed.

"Pq,inf-Free" Doors

Prefinished exterior doors, guaranteed to need no painting for a minimum of 15 years, are the latest addition to U.S. Plywood's line of virtually maintenance-free exterior building products.

New Weldwood PF-15 doors, surfaced with Du Pont's Tedlar, are designed for residential installations or commercial locations where heavy traffic is a factor. The doors, which can be matched or contrasted with PF-I5 prefinished residential siding, are available in the five sidine colors - green, yellow, beige, gr"y und white - and also in Georgian Gold.

The doors are recommended for interior installation in high moisture areas such as steam rooms and for areas where frequent cleaning may be necessary. An occasional hosing down normally is the only maintenance necessary.

For exterior use, PF.15 finish will be applied to either Weldwood lumber core or Stay-Strate doors over sound birch or maple substrate. For interior use, PF-IS finish also will be available on Weldwood Novoply core and fire doors.

A variety of face combinations is available with the new finishing system. Doors may be ordered with both faces of PF-15; with one face of PF-15 and one natural face; or with one face of PF-15 and the other clear or color Permagard. Permagard is a highly wear-, and heat-resistant protective surfacing. It is easily cleaned with a damp sponge or cloth.

In addition to the l5-year o'paint-free" guarantee, U. S. Plywood's "life-of-the-installation" guarantee for the basic door applies.

By constantly improving harvesting tech- nigues and intensifying utilization, th'e red- ,A wood industry is able to turn each tree into - i,t one-third more lumber and by-products to- day than 15 years ago.

Insulation Board

(Continued lrorn Page 52) give insulation board sheathing the ability to keep hcat inside in the winter and outside in the summer I the same air spaces give insulation board acoustical ceiling tile its ability to soak-up and thereby eliminate up to 70/o of the excess noise that strikes it.

"The insula.tion board industry has come a long way in 50 years," said Gray, "and with a 50 year start on tomorrow, the future looks particularly bright."

Members of the Insulation Board Institute are: Abitibi Corp., Detroit, Mich.; Armstrong Cork Co., Lancaster, Pa.; Barrett Div., Allied Chemical Corp., New York, N. Y.; the Celotex Corp., Chicago, Ill'; Certain-Teed Products Corp., Ardmore, Pa.1 The Flintkote Co., New York, N. Y.; Insulite Div., N{ & O Paper Co., Minneapolis, Minn.; Johns-Manville Sales Corp., New York, N. Y.; Kaiser Gypsum (io., Inc.,

Oakland, Calif .; NlacAndrews & Forbes Co., Camden, N. J.; National Gypsum Co., Bufialo, N. Y.; Simpson Timber Co., Seattle, Wash.; United States Gypsum Co., Chicago, Ill.; and Wood Conversion Co., St. Paul. Minn.

Money Clinic

Lumber Merchants will have an opportunity to learn the latest short cuts for obtaining capital for growth and other purposes at a one-day clinic to be held at the Jack Tar Hotel, San Francisco, February l9th.

Designed for small business executives and others who need money for growth, equipment and expansion, the clinic is cosponsored by the Federal Small Business Administration and the Small Business Investment Association of the Bay Area.

The Clinic will explain in plain-language the step by step procedure for obtaining {unds from banks. small business invest- ment companies, Federal Small Business Administration, through public stock issues and through sources o{ private capital'

Speakers will include Lester Bartman, vice president, Crocker-Citizens Bank; Joseph Wasserburger, Federal Small Business Administration; B. J. Brooks, president, Ilegional Small Business Investment Companies; Peter Wallace, J. Barth and Company (investment bankers and underrvriters) and Ernest Lever, atlorney and C.P.A., Los Angeles. Luncheon speaker will be former go\rernor Goodwin J. Knight. nolv president, Imperial Bank.

The entire one-day clinic costs only $35 per person and includes luncheon and a specially prepared money kit of reference material. A previous seminar in September was sold out, so advance reservations are necessary. Reservations may be made through Western Research Center, 68l Market Street, San Francisco, or by calling GArfield 1-2256.