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Roofing Estimating · CSI Division 07

Roofing Estimating Services in Ohio

Roofing takeoffs and estimates for Ohio roofers, general contractors and property owners — asphalt shingle, metal, slate and low-slope membrane systems with underlayment, ice protection, flashing, insulation and tear-off priced for Ohio’s hail, wind and snow.

Free, No-Obligation Quote

Send Your Plans for a Fixed-Price Quote

Email your drawings or share a Dropbox / Google Drive link. We reply with a fixed fee and a delivery date before any work begins.

or email ask@ohiocostestimating.com

Explained

What Is Roofing Estimating?

Roofing estimating measures the roof area by plane and pitch, then converts it to squares (100 square feet) and prices the complete system: deck repairs, underlayment, ice and water protection, starter, field material, hips and ridges, valleys, flashing, ventilation, edge metal, gutters and accessories. Low-slope commercial roofs add insulation, cover board, membrane, fasteners or adhesives, curbs and terminations.

Pitch, height and complexity drive labor and safety costs, and re-roofing adds tear-off, disposal and deck repair. Because so many small components make up a roof, missing accessories is one of the most common ways roofing bids lose money.

We estimate roofing for residential and commercial roofers, general contractors and owners. Storm and insurance work is covered by our Xactimate estimating, and roofing often pairs with siding and insulation.

Quick Answer

How are roofing squares calculated?

Roof area is measured for each plane using its plan dimensions and pitch factor, added together and divided by 100 to get squares. Waste is then added — more for cut-up hip roofs than simple gables — and accessories such as ridge, starter and flashing are measured in linear feet.

Scope

What Our Roofing Estimates Include

A complete roofing scope — measured, priced and organized the way you bid and buy.

What you receive

Roof squares by plane & pitch
Accessory linear footage
Material order list
Low-slope assembly breakdown
Marked-up roof plans (PDF)
Tear-off & disposal quantities

Project Types

Roofing Projects We Estimate

Residential, commercial and industrial work — each priced for how it is actually built.

Residential Shingle Roofs

New construction and re-roofs with architectural shingles and full accessories.

Low-Slope Commercial

TPO, EPDM, PVC and modified bitumen systems with tapered insulation.

Metal Roofing

Standing-seam and exposed-fastener metal roofs for homes and buildings.

Slate & Specialty

Slate, tile and cedar roofs on historic and high-end homes.

Storm Restoration

Hail and wind damage replacement scopes for roofers and owners.

Institutional Re-Roofs

School and public building roof replacements with phasing and prevailing wage.

Ohio Expertise

Roofing Estimating for Ohio Conditions

Ohio roofs take a beating. Spring and summer thunderstorms bring hail and high winds, winters bring freeze-thaw cycles and ice dams, and the Northeast Ohio snowbelt adds heavy snow loads. Ice-barrier underlayment at eaves and valleys, good attic ventilation and secure edge details are standard parts of a durable Ohio roof, and we price them from the plans and specifications.

Re-roofing is common on Ohio’s older housing stock, and codes limit how many layers of roofing can remain, so many jobs require full tear-off and deck repair. Historic neighborhoods may also call for slate or other specialty materials subject to local review.

Commercial roofing is heavily weather-dependent. Membrane adhesives and seaming have temperature limits, so winter work may need special products or schedule adjustments that we note in the estimate.

Ohio factors we price in

Ice-barrier underlayment at eaves & valleys
Hail & wind-resistant details
Snowbelt snow loads
Tear-off requirements on older homes
Cold-weather membrane limitations
Attic ventilation balance

Cost Drivers

What Drives Roofing Costs in Ohio?

These are the variables that move a roofing number most — and how we handle each.

Cost factor	Why it changes the estimate	How we price it
Pitch & height	Steep and tall roofs require safety equipment and slower labor.	Pitch and stories recorded per plane with appropriate labor.
Roof complexity	Hips, valleys, dormers and penetrations increase waste and flashing.	Waste and flashing measured from the actual roof layout.
System type	Membrane, metal, shingle and slate differ widely in material and labor.	Priced by the specified system and manufacturer requirements.
Tear-off	Multiple layers and deck damage add removal and repair costs.	Layers and deck replacement allowances stated clearly.
Insulation (low-slope)	Tapered insulation and cover boards can rival membrane cost.	Tapered layout and R-value priced from the roof plan.

Guide

Roofing Estimating Guide

Practical answers to the questions contractors and owners ask before pricing this trade.

Waste factors by roof type

Simple gable roofs need less waste than cut-up hip roofs with valleys and dormers. Starter, ridge and hip materials are measured separately in linear feet rather than included in waste.

Low-slope assemblies

A commercial roof is a system: deck, vapor retarder, insulation (often tapered for drainage), cover board, membrane and flashing details. Each layer is priced separately, and insulation is often the largest cost.

Ventilation and attic balance

Shingle warranties and code require balanced intake and exhaust ventilation. We count ridge vent, soffit vents and box vents so ventilation isn’t an afterthought.

Gutters and edge metal

Gutters, downspouts, drip edge, gravel stop and coping are often bid by different trades. We list them separately so the scope line is clear.

How It Works

How the Estimating Process Works

Trade estimates follow the same five steps as every project — with a fixed quote first. See our full estimating process.

Send Your Plans

Upload drawings, specs and addenda or share a link, and tell us the scope, bid date and format you need.

Fixed Quote

We review the documents and reply with a fixed fee and delivery date before any work starts.

Takeoff & Pricing

Quantities are measured digitally and priced with current Ohio labor, material and equipment costs.

Quality Review

A second estimator checks quantities, unit costs, math and scope gaps before release.

Delivery & Support

You receive the Excel estimate and marked-up takeoffs, plus updates for addenda and answers to questions.

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FAQs

Roofing Estimating FAQs

Straight answers to the questions we hear most.

Get Your Roofing Estimate

Send your plans and receive a fixed quote and delivery date before any work begins.

ask@ohiocostestimating.com · 101 Normandy Ave, Columbus, OH 43215