07 - Thermal & Moisture Protection
Roofing bid estimating, without the grind.
The roofing number is set less by the field area than by the wind-uplift attachment zones, the warranty term that drives scope, and the tapered-insulation/drainage layout. Drop in your package and get back a cited first-pass: membrane field by SQ, flashing and penetrations that drive the labor, the FM/ASCE 7 uplift flags, and the RFIs that keep a roofing bid from missing the perimeter.
✓ PE-reviewable✓ Cited to source✓ Your roofing workflow
✓
REVIEWED
REVIEWED
Tear-off / recover (if reroof) + disposalmeasure SF— cite
Deck prep + repair coordinationmeasure SQ (100 SF) or SF— cite
Vapor retarder (if required)measure SQ (100 SF) or SF— cite
Insulation — flat + tapered (crickets/saddles for drainage)measure SF (by R-value / thickness / layers)— cite
Cover boardmeasure SF— cite
7
governing codes
11
line-item groups
6
units of measure
6
risk flags
What it surfaces for roofing
Priced for the way roofing is actually bid.
The engine reads your package and flags exactly what bites roofing estimators — before it costs you.
Governing codes named: NRCA Roofing Manual (industry standard details/application), IBC Ch. 15 (roof assemblies), FM Global FM 1-28/1-29 (wind uplift + assembly approvals), UL 580/790 (uplift/fire classification), ASTM D6878/D4434 (TPO/PVC membranes), ASCE 7 (wind uplift design pressures, perimeter/corner zones), IECC/ASHRAE 90.1 (insulation R-value + cool-roof reflectance).
Line-item groups your bid breaks into: tear-off/recover + disposal; deck prep/repair; vapor retarder; insulation flat + tapered (crickets/saddles for drainage); cover board; membrane field by system + attachment; flashings perimeter/penetration/curb/wall; edge metal/coping/gravel stop/gutters; drains/scuppers/overflow; walkway pads + rooftop protection; warranty (NDL term).
The roofing risks ranked: wind-uplift attachment zones (perimeter/corner enhanced attachment — a real cost missed in a $/SF assumption); warranty term drives scope (20/30-yr NDL dictates attachment, cover board, certified installers); tapered insulation/drainage; reroof deck + tear-off unknowns; penetration/curb coordination; material + insulation escalation.
The RFIs drafted (verbatim): "Membrane system + thickness (TPO/PVC/EPDM/mod-bit/BUR), color/reflectance (cool-roof/IECC), and attachment method (mechanically attached / fully adhered / ballasted)?" "Wind-uplift / FM requirement (FM 1-28/1-29 or ASCE 7 zones) — and the enhanced perimeter/corner attachment?" "Required warranty: manufacturer NDL term (15/20/30-yr), and does it drive attachment, cover board, or installer certification?"
The trade's anatomy
Everything roofing needs, structured.
Line-item groups
Tear-off / recover (if reroof) + disposalDeck prep + repair coordinationVapor retarder (if required)Insulation — flat + tapered (crickets/saddles for drainage)Cover boardMembrane — field (by system + attachment)Flashings — perimeter, penetration, curb, wallEdge metal / coping / gravel stop / guttersDrains / scuppers / overflowWalkway pads + rooftop protectionWarranty (NDL manufacturer warranty term)
Governing codes
NRCA Roofing Manual · industry standard details + application for membrane/steep-slopeIBC Ch. 15 · roof assemblies + rooftop structures (adopted)FM Global (FM 1-28/1-29) · wind uplift + roof assembly approvals (FM-rated jobs)UL 580 / 790 · uplift + fire classification of roof assembliesASTM D6878 / D4434 (TPO/PVC) · single-ply membrane material standardsASCE 7 · wind uplift design pressures (perimeter/corner zones)IECC / ASHRAE 90.1 · roof insulation R-value + cool-roof reflectance
Units of measure
membrane roof area → SQ (100 SF) or SFinsulation → SF (by R-value / thickness / layers)flashing / edge metal / coping → LFpenetrations / curbs / drains → EAcover board → SFfasteners / adhesive → by attachment method (mechanically attached vs. fully adhered)
The risks that usually bite
Wind-uplift attachment zonesWarranty term drives scopeTapered insulation / drainageReroof deck + tear-off unknownsPenetration + curb coordinationMaterial + insulation escalation
“"Roofing's a $/SQ field bid; the membrane is the membrane."”
The field $/SQ is the floor. The three numbers that decide whether a roofing bid makes money are the wind-uplift attachment zones (perimeter/corner enhanced attachment is real, recurring cost), the warranty term that silently dictates the system, and the tapered-insulation cricket layout for drainage. The analysis surfaces all three before you bid. Cited hands clean to review.
Run this on your own roofing package.
30 minutes. Bring a real set — a single-ply reroof, an FM-rated job, or one that's thin on attachment details — and watch the cited line items, the wind-uplift flags, and the warranty-scope RFIs on your actual drawings.