CONSTRUCTION
ESTIMATING SERVICES
roofingCSI Division 07

Roofing Estimating Services

Our roofing estimating services cover commercial flat roof systems (TPO, EPDM, PVC, modified bitumen, built-up) and residential steep-slope systems (asphalt shingles, standing seam metal, clay/concrete tile). We quantify roofing in squares (100 SF), measure insulation board layers, calculate perimeter and penetration flashing lengths, count roof drains and overflow scuppers, and itemize all accessories including fasteners, adhesives, walkway pads, and edge metals.

Roofing Estimating takeoff visual

Estimating Scope & Materials

Comprehensive coverage of all roofing estimating-related CSI divisions.

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Quantification & Scope Extraction

Precise quantity calculations accounting for waste factors, drawing details, and complex architectural geometries.

Roofing squares (SQ)check
Insulation board (SF)check
Flashing & trim (LF)check
Fasteners & adhesivecheck
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Deliverable Package

Roofing Material & Accessories Schedule (.xlsx)

Standard Format

Editable Excel Spreadsheet (.xlsx) + Color-Coded Bluebeam PDF Markups

How We Estimate Roofing Estimating Projects

01

Review roof plan drawings, roof detail sections, and roofing specifications

02

Calculate total roof area in squares (SQ) with slope and waste allowances

03

Quantify insulation layers by R-value, thickness, and coverage area

04

Measure all flashing at perimeters, penetrations, curbs, and transitions

05

Deliver roofing material schedule Excel with marked-up roof plan drawings

Common Roofing Estimating Project Types

Typical construction project types that require professional roofing estimating services.

Commercial Flat Roofs

TPO, EPDM, or PVC membrane systems over polyiso insulation for office buildings, retail centers, and warehouses.

Industrial Metal Roofing

Standing seam or through-fastened metal roof panels for manufacturing facilities, hangars, and large-span structures.

Residential Re-Roofing

Tear-off and replacement of asphalt shingle systems including underlayment, ice/water shield, and ventilation.

Multi-Family Roof Systems

Mixed roof types combining flat membrane sections with sloped shingle areas common in apartment and condo developments.

Roofing Estimating Challenges We Solve

Multiple Insulation Layers

We calculate each insulation layer separately (cover board, base layer, tapered crickets) accounting for different thicknesses and R-values specified at different roof zones.

Penetration & Curb Flashing

Every roof penetration (pipes, ducts, equipment curbs, skylights) requires individual flashing measurement. We count and measure each penetration from the roof plan and mechanical drawings.

Tapered Insulation Cricket Systems

We calculate tapered insulation cricket layouts to achieve proper drainage slopes, accounting for varying panel thicknesses at different roof zones and transitions between drain areas.

Roofing Estimating Takeoff & Estimating FAQ

Do you estimate both flat and steep-slope roofing systems?expand_more
Yes. We estimate commercial flat roof systems (TPO, EPDM, PVC, modified bitumen, BUR) and residential/light commercial steep-slope systems (asphalt shingles, standing seam metal, tile). Each system is estimated with its specific components and accessories.
Are roof accessories like drains, scuppers, and walkway pads included?expand_more
Yes. We count and locate all roof drains, overflow scuppers, pitch pockets, walkway pads, snow guards, and edge metal components from the roof plan and detail drawings.
How do you handle re-roofing projects that require tear-off?expand_more
For re-roofing, we estimate tear-off quantities (existing membrane/shingle removal and disposal) separately from new roofing installation materials. We also account for potential deck repair or replacement items typically uncovered during tear-off.

Ready to Bid Your Next Project With Confidence?

Send us your plans and project details. Our estimating team will review your requirements and provide a clear scope and turnaround.

Request an Estimate