EPDM Membranes Spec Sheet

Soprema Sopralene Flam 250: SBS-Modified Bitumen Torch-Applied Membrane Specs & Wind Uplift

Published: 2026-06-22

Soprema Sopralene Flam 250 is a premium SBS-modified bitumen cap sheet designed for torch application on low-slope commercial roofs. The SBS (styrene-butadiene-styrene) polymer modification provides rubber-like elasticity that pure asphalt membranes lack — critical for thermal cycling and building movement. Soprema is the world's largest modified bitumen manufacturer (French-based), and Sopralene is their flagship North American product line. The Flam 250 designation: 2.5mm thickness with torch-applied installation. Suitable for new construction and recover applications over existing BUR or modified bitumen roofs.

EPDM Membranes Cost by City

CityInstalled Cost Range
Dallas TX$4.00-6.50/sq ft
San Antonio TX$3.75-6.25/sq ft
Houston TX$4.25-7.00/sq ft
Chicago IL$4.25-6.75/sq ft
Phoenix AZ$3.75-6.00/sq ft
Denver CO$4.25-6.75/sq ft
Atlanta GA$3.75-6.25/sq ft

Costs include materials + labor for commercial installation. Prices vary by building size, access, and local labor rates.

🛡️ Roof Insurance Claim Process (Step-by-Step)

  1. Document the Damage — Take photos/video of all damage from multiple angles before any tarps or temporary repairs. Include close-ups of impact marks, granule loss, and membrane punctures.
  2. Prevent Further Damage — Install emergency tarp or temporary seal. Most policies require you to mitigate further damage. Keep receipts for emergency repairs — they are reimbursable.
  3. File the Claim Promptly — Contact your insurance carrier within 24-72 hours. Provide: date of loss, type of damage (wind/hail/other), photos, and a rough estimate if available.
  4. Schedule Adjuster Inspection — The carrier sends a claims adjuster. Have your roofing contractor present during inspection — they can point out damage the adjuster might miss, especially on membrane seams and flashings.
  5. Get Contractor Estimates — Obtain 2-3 estimates from licensed roofing contractors who work with insurance claims. Ensure estimates use Xactimate pricing (industry-standard insurance estimating software).
  6. Review the Adjuster Report — Compare the adjuster's scope of work with your contractor's estimate. Common disputes: matching undamaged adjacent slopes, code upgrades (building code may require upgrades the adjuster didn't include), and overhead & profit calculation.
  7. Negotiate if Necessary — If the adjuster's estimate is lower than your contractor's, submit a "supplement" with additional documentation. You have the right to use a public adjuster (typically 10% of claim) if negotiations stall.
  8. Approve and Schedule — Once you agree on scope and price, the carrier issues an Actual Cash Value (ACV) payment. After replacement, submit the final invoice for the Recoverable Depreciation (RCV - ACV = depreciation held back until work is complete).
Key Tip: Never sign an "Assignment of Benefits" (AOB) form without reviewing with an attorney — AOB gives the contractor direct access to your insurance payout and can lead to inflated claims and litigation.

📅 Roofing Season Calendar by Region

Plan your roofing project for optimal weather windows. Off-season installs may require special procedures and cost 10-20% more.

CityClimate ZoneRoofing Season
Dallas TX2A (Hot-Humid)March-November (peak: April-June, September-October)
San Antonio TX2A (Hot-Humid)March-November (peak: April-June, September-October)
Houston TX2A (Hot-Humid)Year-round (avoid peak hurricane season June-November for major projects)
Chicago IL5A (Cold-Humid)April-October (peak: June-August). Winter installs require special adhesive and heat sources.
Phoenix AZ1B (Very Hot-Dry)Year-round (avoid July-August peak heat for worker safety). Peak season: October-April.
Denver CO4B (Mixed-Dry)April-October (peak: June-August). Hail damage repairs spike June-July.
Atlanta GA3A (Warm-Humid)March-November (peak: May-July, September-October)
🛡️ Insurance & Compliance Advisory

SBS-modified bitumen membranes are classified differently from single-ply membranes for insurance purposes. They are considered 'built-up roofing' (BUR) and have separate wind uplift and fire rating test standards (FM 4470 for modified bitumen vs FM 4474 for single-ply). When filing claims, specify the FM 4470 classification — adjusters unfamiliar with modified bitumen may incorrectly apply single-ply standards. For hail claims: granule-surfaced modified bitumen has significantly better impact resistance than smooth-surfaced — document your specific surfacing type.

Need a roofer you can trust? Spec sheets tell you what to buy. A pro tells you what it costs installed — in your city, with your building's specific requirements. See real quotes from local contractors who know this material.

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Affiliate disclosure: We may earn a commission if you request quotes through this link.

Equivalent Products & Cross-References

Equivalent / Alternate ProductAction
Siplast Paradiene 30
Firestone SBS Modified
GAF Ruberoid
Equivalent products listed for cross-reference purposes. Always verify specs with manufacturer datasheets.

🏗️ Roofing Yield & Cost Estimator

Calculate total squares needed and estimated material cost for your commercial roofing project. All calculations run locally in your browser.

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References & Industry Standards

  • ASTM International. Standard Specifications for Single-Ply Roofing Membranes. astm.org
  • FM Approvals. Factory Mutual Roofing Assembly Standards. fmapprovals.com
  • UL LLC. Fire Classification of Roofing Materials. ul.com
  • NRCA. The NRCA Roofing Manual. nrca.net