Can I bill for polyiso insulation and membrane that's delivered but not yet installed?

Yes. DrawFort supports a stored-materials value on the G703 and withholds retainage on it, which is how commercial roofers get reimbursed for pallets of insulation and rolls of membrane fronted before install. Keep your bill of sale and stored-materials insurance on hand, since most GCs require that documentation alongside the pay application.

How does DrawFort handle change orders discovered at tear-off, like deck repair or wet insulation?

Add each approved change order to the schedule of values as its own line item. You bill it at its own percent complete with its own retainage, so the GC sees the original contract value and the approved changes broken out clearly — which is what keeps the pay app from getting rejected.

What happens to my billing in a rained-out month with little field progress?

Nothing breaks. DrawFort carries prior work-completed forward automatically (Column D) and computes 'less previous certificates,' so a low-progress month simply rolls into the next application with the correct balance to finish. You can still bill mobilization, bonds, and stored materials that period.

Is this the official AIA software, and will it work with my GC's system?

DrawFort is AIA-style (G702/G703-compatible), not the official AIA software, and is not affiliated with or endorsed by the AIA. It exports a clean G702/G703 PDF you can email to any GC, owner, or architect, so it works regardless of what billing software they use.

By trade / Roofing

Pay Application & G702/G703 Software for Commercial Roofing Contractors

Commercial roofing gets billed by the layer: mobilization, tear-off, insulation, membrane, flashing, sheet metal, and warranty closeout — each line moving at its own pace across multiple roof sections, all while the weather decides how much you actually install this month. On top of that, you've usually fronted pallets of polyiso and rolls of membrane long before they go down, and the GC won't pay for them without clean stored-materials documentation. DrawFort builds the AIA-style G702/G703 these draws require, so the percent-complete, retainage, and carry-forward math ties out every period.

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How roofing subs bill — and where it goes wrong

Long-lead materials sitting on site before install

Manufacturers want the full polyiso and membrane order placed up front to lock pricing and the NDL warranty, so you've often paid for pallets of insulation and rolls of TPO/EPDM that sit on the roof or in a yard for weeks. Getting reimbursed means a proper stored-materials column on the G703 — with retainage still withheld on it — backed by bills of sale and insurance. GCs routinely kick back stored-material billings that aren't broken out and documented correctly.

SOV split by system layer, installed in overlapping passes

Your schedule of values is broken out by component — tear-off, vapor barrier, insulation, cover board, field membrane, flashings, edge metal, drains — but crews work these in overlapping passes across Roof Areas A, B, and C. Estimating an honest percent complete on each line, each month, across multiple sections is tedious, and every partial has to carry forward cleanly into the next application.

Weather-driven, stop-start draws and multi-period carry-forward

A rained-out or frozen month means almost no field progress, yet you still bill mobilization, bonds, and stored materials. Every pay app has to pull prior work-completed forward (Column D), net out previous certificates, and show the right balance to finish — rebuild that by hand in a spreadsheet and one transposed number gets the whole application rejected.

Change orders from conditions found at tear-off

Deteriorated deck, rusted fasteners, and wet insulation only show up once the old roof is off, generating unit-price change orders mid-project. Those have to be added to the SOV as their own approved lines, billed at their own percent complete, and carry their own retainage — and GCs reject pay apps where approved COs aren't reflected as separate line items.

A typical roofing schedule of values

These are the kinds of line items roofing contractors put on a G703 continuation sheet. DrawFort tracks each one across every billing period — percent complete, stored materials, retainage, and balance to finish.

Mobilization / demobilization
Bonds & insurance
Tear-off & disposal of existing roof system
Roof deck repair & substrate preparation
Vapor retarder / air barrier
Polyisocyanurate insulation (2 layers, staggered)
Tapered insulation — crickets & saddles
Gypsum cover board (e.g., DensDeck)
60-mil TPO membrane — field, Roof Area A
Membrane flashings, penetrations & detail work
Edge metal, coping & counterflashing (sheet metal)
Manufacturer NDL warranty & project closeout (O&M manuals)

How DrawFort helps roofing contractors

Bill stored materials the right way: DrawFort puts long-lead polyiso and membrane on the G703 as stored materials and applies retainage to that stored value, so the pallets you fronted before install show up in a form GCs and architects will actually certify.
Carry-forward fills itself: Column D (work completed from previous applications) and 'less previous certificates' are computed automatically, so a slow weather month just rolls forward — no rebuilding the spreadsheet for every draw.
Track percent-complete per line across the whole roof: set percent complete on each system-layer line and let DrawFort calculate work this period, totals, retainage, and balance to finish so every column ties out.
Add tear-off change orders as real SOV lines: deck repair, wet insulation, and other COs go in as their own line items with their own percent complete and retainage, keeping approved changes visible the way GCs require.
Export a clean G702/G703 PDF to anyone: email the same standard form to any GC, owner, or architect regardless of their software — no QuickBooks needed, $34/month flat for the whole team, never a percentage of your contract, and a free generator at drawfort.com/tools/g702-g703-generator to try first.

Stop building pay apps in a spreadsheet

DrawFort fills in the carry-forward, computes retainage and current payment due, handles change orders, and exports a clean G702/G703 PDF your GC can approve at a glance.

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Frequently asked questions

Can I bill for polyiso insulation and membrane that's delivered but not yet installed?: Yes. DrawFort supports a stored-materials value on the G703 and withholds retainage on it, which is how commercial roofers get reimbursed for pallets of insulation and rolls of membrane fronted before install. Keep your bill of sale and stored-materials insurance on hand, since most GCs require that documentation alongside the pay application.
How does DrawFort handle change orders discovered at tear-off, like deck repair or wet insulation?: Add each approved change order to the schedule of values as its own line item. You bill it at its own percent complete with its own retainage, so the GC sees the original contract value and the approved changes broken out clearly — which is what keeps the pay app from getting rejected.
What happens to my billing in a rained-out month with little field progress?: Nothing breaks. DrawFort carries prior work-completed forward automatically (Column D) and computes 'less previous certificates,' so a low-progress month simply rolls into the next application with the correct balance to finish. You can still bill mobilization, bonds, and stored materials that period.
Is this the official AIA software, and will it work with my GC's system?: DrawFort is AIA-style (G702/G703-compatible), not the official AIA software, and is not affiliated with or endorsed by the AIA. It exports a clean G702/G703 PDF you can email to any GC, owner, or architect, so it works regardless of what billing software they use.

Other trades

New to AIA billing? Read the G702 guide or compare DrawFort to other tools.

DrawFort produces AIA-style (G702/G703-compatible) documents. It is not the official AIA software and is not affiliated with, endorsed by, or sponsored by The American Institute of Architects.