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TRI-BUILT #40 Organic Base Sheet, 15-Year Limited Warranty, Black Roofing Roll
Regular price $44.76Orders start at $399 — combine any items to reach the minimum. Learn more
TRI-BUILT #40 Organic Base Sheet, 15-Year Limited Warranty, Black Roofing Roll
TRI-BUILT #40 Organic Base Sheet is a black organic felt base sheet for use under built-up and modified bitumen roofing systems. It meets ASTM D2626 and carries a 15-year limited warranty. Each roll is sold as one roll and pairs with hot-mopped or cold-applied ply systems and cap sheets in the TRI-BUILT line.
Key Features:
- ASTM compliant: Meets ASTM D2626, the standard specification for asphalt-saturated organic base sheets used in roofing.
- 15-year warranty: Backed by a TRI-BUILT 15-year limited warranty.
- Full-roll sell unit: Supplied as a complete roll, sold by the roll.
- Base ply foundation: Designed as the base sheet layer beneath built-up roofing or modified bitumen cap sheets.
- Black organic felt: Black organic-felt construction provides the standard substrate for multi-ply roof assemblies.
- Pro-grade brand: TRI-BUILT is a commercial roofing supplier brand distributed to professional contractors.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | TRI-BUILT |
| Manufacturer model | 040-OBS-TRI |
| Sell unit | 1 roll |
| Product line | TRI-BUILT roofing base sheets |
| Profile / style | #40 Organic Base Sheet |
| Color | Black |
| Material | Organic felt base sheet |
| Applicable standards | ASTM D2626 |
| Warranty | Limited Warranty (15 year) |
| Weight | 80 lb per roll |
| Intended use | Base sheet for built-up and modified bitumen roof systems |
Coverage & How Much You Need:
One roll is a full base-sheet roll; nominal 1-square-per-roll coverage is typical for #40 base sheets, but roll width and length are not stated in the sources. Plan laps and overlaps per the roofing system specification before ordering.
Fit and Compatibility:
Intended as the base ply in TRI-BUILT and comparable built-up or modified bitumen systems, mopped or adhered over decks or insulation boards specified by the system manufacturer. Cap sheets, ply sheets, adhesives and fastening plates are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One roll of TRI-BUILT #40 Organic Base Sheet in black, weighing 80 lb per the supplier's price sheet.
Q: How many rolls do I need?
A: Estimate roof area in squares and add for laps and waste; roll dimensions are not published in the available sources, so confirm roll size with the system specification.
Q: Is this a base sheet or a cap sheet?
A: It is a base sheet intended as the first ply under built-up or modified bitumen cap sheets, not a finished roofing surface.
Q: What standard does it meet?
A: It is listed as meeting ASTM D2626 for organic base sheets.
Q: Does it carry a warranty?
A: The item carries a TRI-BUILT limited warranty of 15 years as listed on the distributor specification.
Q: How is it installed?
A: Install per the roofing system manufacturer's instructions, typically attached and lapped, with cap sheets or ply mops over it; follow local code.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
As the first ply in a multi-ply assembly, this #40 organic base sheet gives contractors the ASTM D2626 substrate most built-up specs call for. Verify deck type and whether the system calls for nailed or adhered base before ordering, and size rolls from the project's lap requirements. Pair with the specified TRI-BUILT ply and cap sheets and compatible asphalt for a complete system that honors the 15-year limited warranty terms.
Hot-mopped installation involves hot asphalt and heavy rolls; follow the roofing system's safety instructions and local code requirements.
Order the TRI-BUILT #40 Organic Base Sheet roll for your next multi-ply roofing job.
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