· 5 min read · TradeBid editorial team
Roofing Takeoff Software for Faster Estimates
Measure roof areas, pitch, edges, flashing and penetrations from plans, then turn them into a roofing bid that's clear and easy to check.
The short answer: Roofing takeoff software helps you measure roof area by plane and pitch, plus edges, valleys, flashing and penetrations, so your materials and labor come from real quantities. For commercial and residential roofers alike, the time savings come from measuring on the plans once and carrying those numbers straight into the bid.
What a roofing takeoff has to capture
- Roof area by plane: measured in plan view, then adjusted for pitch to get true sloped area, converted to squares (100 SF).
- Pitch and complexity: steep or cut-up roofs need more labor, safety equipment and waste.
- Linear items: eaves, rakes, ridges, hips and valleys, plus drip edge, starter, ridge cap and gutters if they're in scope.
- Flashing: step, counter, headwall, chimney and sidewall flashing.
- Penetrations: vents, pipes, skylights, curbs, drains and scuppers.
- Underlayment and accessories: ice and water shield, synthetic underlayment, nails or fasteners, sealants.
- Low-slope systems: membrane type (TPO, EPDM, mod bit), insulation layers and taper, cover board, edge metal and coping.
- Tear-off: existing layers, disposal and deck repair allowances on reroofs.
How to approach a roofing takeoff
- Start with the roof plan and details. Check elevations and sections for pitch and the specs for system requirements and warranty.
- Break the roof into planes. Measure each one and note its pitch.
- Apply pitch factors to convert plan area into true area.
- Measure every linear item: eaves, rakes, ridges, hips, valleys and walls that need flashing.
- Count penetrations and special conditions.
- Add waste based on roof complexity and the material, using your own past jobs as the guide.
- Apply labor, adjusted for pitch, height, access, tear-off and staging.
Worked example: one roof plane
These are example inputs to show the method, not prices:
- Plan area of a plane: 30 ft × 20 ft = 600 SF.
- Pitch 6/12 gives a pitch factor of about 1.118, so the true area is about 671 SF, or 6.7 squares.
- Add your waste factor (say 10% for a simple gable, more for hips and valleys).
- Line items: shingles (squares), underlayment (squares), ice and water at eaves and valleys (LF or rolls), drip edge (LF), starter (LF), ridge cap (LF), vents (each), labor (squares × your rate, adjusted for pitch).
Where takeoff software saves time
- Measuring planes and edges on PDFs at scale.
- Applying pitch factors without hand math.
- Keeping each material on its own line so you can swap systems or prices quickly.
- Producing a proposal that shows the system, warranty, inclusions and exclusions.
With TradeBid, you upload plans or scope documents, choose Roofing, and get a draft line-item bid with quantities, labor, materials, markup and exclusions. You review and edit every line, then export a branded PDF proposal.
What to check before you submit
- Squares match the roof plan, with the pitch applied.
- All flashing and edge metal is included.
- Penetrations are counted and match the mechanical and plumbing sheets.
- Tear-off, disposal and deck repair are priced or excluded.
- Warranty and manufacturer requirements are met by the system you priced.
- Access, staging and safety costs are included.
Common mistakes on roofing bids
- Using plan area without pitch, which underbids steep roofs.
- Missing mechanical curbs on commercial roofs.
- Not pricing tapered insulation when the drains call for it.
- Leaving deck repair open-ended. Price an allowance per sheet instead.
Setting labor that matches your crew
Quantities are only half the bid. The other half is how long your crew takes to install them. The most reliable roofing estimators keep their own production rates for squares, linear feet of edge and flashing, and penetrations, built from past jobs, and adjust them for pitch, height, tear-off layers and staging.
A simple way to start:
- Pick three or four recent jobs where you know the hours.
- Divide the hours by the quantities installed to get hours per unit.
- Write down the conditions on each job, so you know when to adjust up or down.
- Update the rates after every job you finish.
Then multiply by your loaded labor rate, meaning wages plus taxes, insurance and benefits, not just the hourly wage. That's what turns a takeoff into a number you can trust. Add overhead and profit as a separate, intentional markup, so you can see exactly what you're charging for and adjust it job by job.
Presenting the bid so GCs can compare it
Most GCs line up several roofing bids side by side. Make yours easy to read: one base price, scope grouped by system or area, alternates priced separately, a short list of named exclusions, your schedule assumptions, and how many days the price is valid. A clean, branded PDF that answers their questions up front saves a round of phone calls and makes your number look more reliable.
FAQ
How do I calculate roofing squares from plans? Measure each plane's plan area, multiply by its pitch factor, add the planes together, and divide by 100.
What waste factor should I use? Use what your own past jobs show. Simple roofs waste less, while hips, valleys and dormers waste more.
Can I do roofing takeoffs from PDF plans? Yes. Measure each plane and edge at the drawing scale, and use elevations or sections to confirm pitch.
How does TradeBid help roofers? Upload plans, pick Roofing, and review a draft line-item bid you can edit and export as a branded PDF proposal.
What does TradeBid cost? Apprentice is $149/month (up to 5 bids), Journeyman is $300/month and Master is $850/month, or $100 for a single bid. Every plan starts with a 7-day trial. See pricing.
Check a finished line-item layout on our sample bid, or Start for $0.00. More on the roofing trade page.