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every structure has a roof.


evaluate. specify. repair.


We know roofs. Wallace’s roof assessment and inspection team is experienced with standing seam, TPO, PVC, EPDM, ModBit, BUR and screw down metal roof systems. We have developed an assessment process that identifies when the condition of a roof justifies repair or replacement. In addition, most of our roof consultants are licensed professional engineers and can rapidly develop re-roof and structural repair drawings as required. Our mission is to extend the lifespan of your roof, specify repairs when needed and recommend replacement when necessary.


roofing and insulation types.


TPO | Thermoplastic polyolefin plastic + UV protectors + reinforcing fibers + olefin PVC | Polyvinyl Chloride ethylene + chlorine + plasticisers EPDM (Rubber) | Ethylene Propylene Diene Monomer rubber + polymer Mod-Bit | Modified Bitumen asphalt (bitumen) + polymers (modifiers) + reinforcements APP Mod-Bit (plastic) | SBS Mod-Bit (elastic) BUR | Built Up Roof fiberglass + asphalt + coating Elastomeric | Category of elastic roof coating products Asphalt Shingles | Asphalt or composite shingles fiberglass mat embedded between two asphalt layers Metal | Screw down, standing seam, painted, coated EPS | Expanded Polystyrene styrofoam insulation Polyiso or ISO | Polyisocyanurate insulation


assess damage and create solutions.


Our evaluation process includes general condition, damage, life-cycle, and installation assessments. Our assessment scorecard is a numerical roof condition grading system saved in our database to help facility managers prioritize, schedule and budget future maintenance planning. We are able to recommend and design repairs as well as provide re-roof design drawings along with the calculations for code and energy verifications.


| original roof type: BUR | damage: exposed scrim | solution: verified metal deck capacity and replaced with TPO


| original roof type: TPO | damage: failed seams, cuts, exposed scrim | solution: replaced with TPO


| original roof type: TPO | damage: hail | solution: replaced with TPO


| original roof type: PVC | damage: hail | solution: replaced with TPO


| original roof type: BUR | damage: exposed scrim, alligatoring of aging BUR and repair coating, severely corroded structural metal deck | solution: reinforced metal deck and replaced with TPO


| original roof type: Mod-Bit | damage: missing aggregate, failed sealants, seams and repairs, deteriorated membrane, alligatoring, corrosion | solution: Mod-Bit overlay


| original roof type: Standing seam metal | damage: corrosion | solution: flute fill, coverboard, TPO


a dynamic team.


Our roof consultant team has performed assessments and inspected millions of square feet of roofs. We’re ready to listen to what you need and help shape what you want. Let’s get started.

dan mazzei, pe, se, cwi, rro, principal

harry coates, rrc

800.364.5858 • dan.mazzei@wallace.design

800.364.5858 • harry.coates@wallace.design


dedicated to

the art of possibility.

wallace design collective structural • civil • landscape architecture • surveying • assessments atlanta • denver • kansas city • oklahoma city • tulsa wallace.design • 800.364.5858

Profile for Wallace Design Collective

roof assessment services  

Wallace Design Collective's roof consultant team has performed assessments and inspected millions of square feet of roofs. Our evaluation pr...

roof assessment services  

Wallace Design Collective's roof consultant team has performed assessments and inspected millions of square feet of roofs. Our evaluation pr...

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