COMMERCIAL FLAT ROOFING

SBS Modified Bitumen Estimating Template

Professional Excel template for estimating commercial modified bitumen roofing systems. Calculate base sheets, cap sheets, primer, and labor for torch-applied and self-adhered SBS installations.

$39

Buy Template - $39→See What's Included

✓Instant Download

✓Lifetime Updates

✓30-Day Money-Back Guarantee

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Perfect For:

✓Torch-applied modified bitumen systems

✓Self-adhered SBS membrane installations

✓Base sheet and cap sheet configurations

✓Commercial low-slope and flat roofs

Why You Need This Template

Master SBS modified bitumen estimating with proven formulas

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Estimate Faster

Pre-configured formulas automatically calculate base sheets, cap sheets, primer coverage, and flashing quantities. Enter square footage and get instant material counts.

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Eliminate Costly Mistakes

Built-in overlap factors, waste allowances, and comprehensive material checklists ensure you never under-order rolls or miss critical components like primers and adhesives.

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Win Commercial Bids

Professional, detailed estimates with proper system specifications build credibility with commercial property managers and general contractors.

What's Included in the Template

Everything you need to estimate SBS modified bitumen roofing projects

Material Calculators

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Base Sheet & Cap Sheet Quantities
Automatic roll calculations with proper lap allowances for side and end laps. Includes both torch-applied and self-adhered configurations.
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Primer Coverage Calculator
Asphalt primer quantities for substrate preparation with application rate adjustments for concrete, wood, and existing membrane surfaces.
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Flashing Material Takeoffs
Perimeter flashing, parapet cap, penetration flashings, and corner details with proper material specifications and quantities.
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Insulation & Cover Board
Rigid insulation board calculations with R-value options, tapered insulation layouts, and cover board requirements for torch applications.
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Fasteners & Adhesives
Mechanical fasteners for base sheet attachment, cold adhesive for self-adhered systems, and mastic quantities for detail work.
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Drainage & Accessories
Roof drain components, scuppers, overflow drains, and edge metal specifications with linear foot calculations.

Labor & Production Rates

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Torch-Applied Installation Rates
Labor hours for torch-welding base and cap sheets with adjustments for crew experience and roof complexity.
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Self-Adhered Application Labor
Production rates for peel-and-stick SBS systems including surface preparation and proper installation techniques.
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Tear-Off & Disposal Calculations
Removal labor for existing BUR or SBS systems with weight calculations for dumpster sizing and disposal costs.
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Flashing & Detail Labor
Separate labor rates for parapet walls, penetration flashings, edge details, and complex corner configurations.
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Substrate Preparation Time
Labor for deck repairs, primer application, insulation installation, and surface preparation work.
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Project Duration Estimator
Crew size optimization and timeline projections based on square footage, system type, and site conditions.

Plus These Essential Features

System Specifications

Pre-loaded manufacturer specs for major SBS brands. Choose from 2-ply, 3-ply, or hybrid systems with proper component selection.

Warranty Compliance

Built-in checklists ensure your material quantities and installation methods meet manufacturer warranty requirements.

Professional Proposal Format

Auto-generated scope of work with system details, material specifications, and line-item pricing ready for client presentation.

Understanding SBS Modified Bitumen Systems

This template covers all major SBS roofing configurations

Torch-Applied Systems

The template includes complete calculations for heat-welded modified bitumen installations:

•2-ply systems: Base sheet + granulated cap sheet
•3-ply systems: Ply sheet + base + cap configurations
•Hybrid systems combining mechanically-attached and torched layers
•Torch equipment and safety considerations in labor rates

Self-Adhered Systems

Comprehensive support for cold-applied peel-and-stick SBS installations:

•Self-adhering base sheets and cap sheets
•Cold adhesive applications for full adherence
•Low-temperature and all-weather installation options
•Ideal for occupied buildings and fire-restricted areas

Typical SBS Applications

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Office Buildings

Low-slope commercial roofs with reliable long-term performance

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Industrial Facilities

Warehouses and manufacturing plants requiring durable membranes

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Retail Centers

Strip malls and shopping centers with flat or low-pitch roofs

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Schools & Institutions

Education and government buildings needing warranty-backed systems

File Format

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Microsoft Excel

Excel .xlsx format with protected formulas and easy-to-customize pricing fields

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Google Sheets Compatible

Upload to Google Sheets for cloud access and team collaboration across offices

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Mobile Friendly

Access on tablet or phone for on-site estimating and quick measurements

Who Is This Template For?

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Commercial Roofers

Specializing in flat roof systems and need accurate SBS material calculations for property managers and GCs

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New to Modified Bitumen

Expanding into SBS work and need proven formulas for lap allowances, primer coverage, and system specifications

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Roofing Estimators

Professional estimators needing standardized templates for consistent commercial flat roof bidding

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Growing Companies

Scaling your commercial division and need repeatable estimating processes for SBS projects

How to Use the Template

Start estimating SBS projects in minutes

Download & Configure Your Pricing

After purchase, download the Excel template. Input your local material costs for SBS rolls, primers, insulation, and flashings. Enter your labor rates for torch crews or self-adhered installation teams.

Select System Configuration

Choose your SBS system type (2-ply, 3-ply, hybrid), application method (torch or self-adhered), and insulation requirements. The template adjusts all calculations based on your selections.

Enter Roof Measurements

Input total roof area, perimeter dimensions, parapet heights, number of penetrations, and drainage details. The template automatically calculates material rolls with proper overlap allowances.

Review & Present Estimate

The template generates complete material quantities, labor hours, and project costs. Review the professional summary sheet with system specifications and present to your client or submit your bid.

What You'll Learn Using This Template

Beyond just calculations - understand SBS estimating best practices

Material Estimating Insights

✓How to calculate proper lap allowances for side laps (3") and end laps (6") in SBS installations
✓Standard roll coverage (1 square) vs. actual coverage after laps and waste
✓Primer application rates for different substrate types (concrete vs. existing membrane)
✓When to specify cover board over insulation for torch applications
✓Flashing material selection for parapets, penetrations, and edge conditions

Labor & Production Knowledge

✓Realistic production rates for torch crews (15-25 squares/day for experienced teams)
✓Labor differences between torch-applied and self-adhered installations
✓How complexity factors (parapets, penetrations, drains) affect labor hours
✓Substrate preparation time for tear-off, deck repairs, and primer application
✓Proper crew sizing and project duration for different roof sizes

Frequently Asked Questions

Does this work for both torch-applied and self-adhered SBS?

Yes! The template includes separate calculation sections for torch-applied (heat-welded) and self-adhered (peel-and-stick) SBS systems. You can switch between methods with a simple dropdown selector.

Can I use this for 2-ply and 3-ply systems?

Absolutely. The template supports 2-ply (base + cap), 3-ply (ply sheet + base + cap), and hybrid configurations. Material calculations automatically adjust based on the system you select.

Are manufacturer-specific products included?

The template includes standard specifications that work with major SBS manufacturers (GAF, Soprema, Johns Manville, Siplast, etc.). You can customize material names and specifications to match your preferred brands.

What about insulation and cover board calculations?

Yes, the template includes rigid insulation calculators with R-value options, tapered insulation layouts for drainage, and cover board (DensDeck, gypsum, etc.) requirements for torch applications.

Do I need special software to use this?

No. The template is a standard Excel file that works with Microsoft Excel (Windows/Mac), Google Sheets (free), or any spreadsheet software that supports .xlsx files.

Will this work for re-cover applications over existing SBS?

Yes. The template includes options for re-cover scenarios where you're installing new SBS over existing modified bitumen. It accounts for primer requirements and proper attachment methods for re-covers.

What Commercial Roofers Are Saying

★★★★★

"Finally a template that understands SBS lap allowances. My material orders are now spot-on instead of running short or over-ordering by 15%. Worth every penny."

Carlos Mendoza

Commercial Estimator, Apex Roofing

★★★★★

"We do both torch and self-adhered work. Having one template that handles both methods with accurate labor rates has standardized our estimating across all our commercial jobs."

Jennifer Kowalski

Owner, Flat Roof Solutions

★★★★★

"The flashing details and primer calculations were game-changers. I used to wing those numbers. Now every estimate includes proper quantities for all the detail work."

David Patterson

Project Manager, Commercial Roof Systems

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30-Day Money-Back Guarantee

Use the template on your next commercial SBS projects. If it doesn't improve your estimating accuracy and save you time, we'll refund your purchase - no questions asked.