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MB Technologies Layfast SBS TU-43 Roofing Underlayment – MR43TU508
Regular price $109.19Orders start at $399 — combine any items to reach the minimum. Learn more
MB Technologies Layfast SBS TU-43 Roofing Underlayment
MB Technology Layfast SBS TU-43 is an SBS modified bitumen roofing underlayment for use beneath asphalt shingle and other steep-slope roof coverings. The sell unit is one roll. Install as the first layer over the roof deck before shingles for added water resistance.
Key Features:
- SBS modified: SBS polymer modified asphalt construction for flexible, durable underlayment performance.
- TU-43 grade: Layfast TU-43 grade underlayment from MB Technology's Layfast line.
- Roll format: Supplied as a roll for efficient coverage across roof planes.
- Steep slope use: Designed as an underlayment beneath steep-slope roof coverings.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | MB Technologies |
| Manufacturer model | MR43TU508 |
| Sell unit | 1 roll |
| Material | SBS modified asphalt underlayment |
| Intended use | Roofing underlayment under shingle or other roof coverings |
Fit and Compatibility:
Install under asphalt shingles or other compatible steep-slope roof coverings; fastening and lap requirements should follow the manufacturer's installation instructions.
Frequently Asked Questions (FAQ):
Q: What is included in the sell unit?
A: One roll of MB Technology Layfast SBS TU-43 underlayment.
Q: What are the roll dimensions and weight?
A: Roll dimensions and weight are not stated in the available sources.
Q: How is it installed?
A: It is rolled out horizontally over the roof deck and fastened per the manufacturer's instructions before the roof covering is applied.
Q: Is it SBS modified?
A: Yes, the Layfast TU-43 is an SBS modified asphalt underlayment.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
SBS modified underlayments like Layfast TU-43 offer better flexibility and tear resistance than plain organic felts, which helps around eaves, valleys and fastener penetrations. Overlap side and end laps per the manufacturer's guidance and work from the eave upward so upper courses shed water over lower ones. Order enough rolls to cover the roof square footage plus lap allowance.
Roof underlayment installation involves working at height on sloped surfaces; use proper fall protection and take care on hot, slick modified asphalt surfaces.
Get MB Technology Layfast SBS TU-43 underlayment rolls for your next roofing project today.
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