Building Envelope Trades
Commercial Roofing Estimating and Takeoff Services
Tribuild takes off roofing by system and roof area: membrane, insulation, and cover board by square, with tapered layouts, flashing, edge metal, and every penetration and curb detailed so your bid carries the whole assembly, not just the field.
Roofing bids get thin when the field membrane is priced and the details are guessed. Tribuild takes off roofing by system and roof area (membrane, insulation, and cover board by the square) and then carries the assembly that actually drives labor: tapered layouts from the slope plan, flashing and edge metal by linear foot, and every drain, scupper, curb, and penetration counted.
Reroof tear-off is quantified separately, attachment zones are checked at field, perimeter, and corners, and every deliverable ships with color-coded roof plans and documented assumptions your team can price and defend.
What we estimate for commercial roofing
TPO, EPDM, and PVC single-ply
Single-ply membrane by roof area and attachment method (mechanically attached, adhered, ballasted).
Modified bitumen
Two- and three-ply mod-bit systems by area with base and cap sheets.
Built-up roofing
BUR plies and flood-coat/gravel systems by area.
Metal roofing
Standing-seam and architectural metal roofing by area with clips and trim.
Roof insulation and cover boards
Polyiso and cover board by area and thickness per the assembly R-value.
Tapered insulation
Tapered layouts quantified by area with slope and crickets from the tapered plan.
Vapor barriers
Vapor retarder by area beneath the insulation where specified.
Flashing
Base and counter flashing by linear foot at walls, curbs, and penetrations.
Coping and edge conditions
Coping, fascia, gravel stop, and edge metal by linear foot per the edge details.
Roof drains and scuppers
Drains, overflow scuppers, and related sumps counted by unit.
Gutters and downspouts
Gutter and downspout by linear foot with outlets and boots.
Penetrations and curbs
Pipe penetrations, equipment curbs, and pitch pockets counted by unit.
Accessories
Walkway pads, edge fasteners, termination bars, and sealants by unit and linear foot.
Demolition
Tear-off of existing roofing and insulation quantified by area for disposal.
Services available for this trade
What you receive
- ✓Quantity takeoff workbook by roof system and area (squares)
- ✓Color-coded roof plans keyed to each system
- ✓Tapered insulation quantities from the tapered plan
- ✓Flashing, edge metal, and penetration counts
- ✓Tear-off quantities for reroof scope
- ✓Scope notes, assumptions, and qualification notes
Software and platforms
Project experience
How it works
- 1
You submit drawings, specifications, addenda, and bid information.
- 2
Tribuild reviews the scope and delivery requirements.
- 3
The project is assigned to the appropriate estimator or team.
- 4
Questions and clarifications are documented where necessary.
- 5
The deliverable is reviewed under Tribuild's applicable quality-control process.
- 6
The project is delivered through the Tribuild portal or an approved delivery method.
- 7
Revisions and addenda are managed under the applicable service agreement.
Quality control
- Roof systems reconciled against roof plans and details
- Field, perimeter, and corner zones verified for attachment
- Tapered insulation checked against the slope plan
- Flashing and edge conditions carried by detail
- Addendum tracking against revised roof plans
Frequently asked questions
Roof plans, tapered insulation plans, roof details and sections, and the roofing specification. Details drive flashing, edge metal, and penetration quantities beyond the field membrane.
Yes, existing roofing and insulation tear-off is quantified by area for disposal, separate from the new-roof assembly.
From the tapered plan by area with slope and crickets, so drainage design isn't reduced to a flat average thickness.
Yes, base/counter flashing, coping, fascia, and gravel stop are carried by linear foot per the edge and penetration details.