
Malarkey Secure Start Lite Synthetic Roof Underlayment, 48 in. x 250 ft. Roll, Green
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Malarkey Secure Start Lite Synthetic Roof Underlayment, 48 in. x 250 ft. Roll, Green
Malarkey Secure Start Lite is a lightweight, 4-layer synthetic underlayment that provides a moisture-protection layer over the entire roof deck. Each roll measures 48 in. x 250 ft. and is green. It is suitable under asphalt shingles, wood shakes/shingles, metal, slate, and mechanically-fastened roof tiles, including fire-rated, code-compliant coverings.
Key Features:
- 4-layer strength: Four layers with a polypropylene woven core and non-woven top deliver greater tear strength than conventional felt paper.
- Water resistance: A non-porous monolithic polypropylene layer helps resist water penetration.
- Anti-slip surface: An anti-slip coating helps prevent worker accidents and keeps roofing materials from sliding.
- Lays flat: Lays down flat and does not wrinkle when moist or wet.
- Lightweight: A lightweight synthetic alternative to heavy felt underlayment.
- Recyclable material: Made from recyclable polypropylene that can be re-used for new product production at end of lifecycle.
- Fire-rated compatible: Suitable for use under fire-rated, code-compliant roof coverings.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Malarkey |
| Sell unit | 1 roll, 48 in. x 250 ft. |
| Product line | Malarkey Secure Start Lite Synthetic Underlayment |
| Available colors | Green |
| Available sizes | 48 in. x 250 ft. |
| Material | Synthetic polypropylene, 4 layers (woven core, non-woven top) |
| Finish / texture | Anti-slip coated surface |
| Dimensions | 48 in. x 250 ft. per roll |
| Coverage per unit | Approx. 1,000 sq. ft. per roll before laps |
| Fastening | 1 in. diameter plastic or metal cap fasteners |
| Intended use | Roof deck underlayment under asphalt shingles, wood shakes/shingles, metal, slate, and mechanically-fastened tiles |
| Recyclability | Recyclable polypropylene construction |
Coverage & How Much You Need:
A 48 in. x 250 ft. roll covers about 1,000 sq. ft. of roof deck before lap deductions. Apply with proper side and end laps per the roof covering manufacturer's requirements and fasten with 1 in. diameter plastic or metal cap fasteners.
Fit and Compatibility:
Works under asphalt shingles, wood shakes/shingles, metal, slate, and mechanically-fastened roof tiles, and is suitable under fire-rated, code-compliant roof coverings. Pairs with Malarkey shingle lines and standard cap fasteners.
Frequently Asked Questions (FAQ):
Q: What is on one roll?
A: One roll of green Secure Start Lite synthetic underlayment measuring 48 in. x 250 ft.
Q: How much roof does a roll cover?
A: At 48 in. width and 250 ft. length, a roll covers roughly 1,000 sq. ft. before laps and waste are deducted.
Q: How is it fastened?
A: Sheets are applied with 1 in. diameter plastic or metal cap fasteners.
Q: Is it slippery to walk on?
A: It has an anti-slip coating to help prevent accidents for workers on the roof.
Q: What roof coverings can it go under?
A: It works under asphalt shingles, wood shakes/shingles, metal, slate, and mechanically-fastened tiles, including fire-rated code-compliant assemblies.
Q: Does it wrinkle if it gets wet?
A: No, it lays down flat and does not wrinkle when moist or wet.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Choose Secure Start Lite when you want felt-class tear strength with far less weight per square on the roof. Its anti-slip surface is a real advantage on steeper pitches, so still use proper roof anchors. On long eave runs, roll it out horizontally and maintain the lap and fastening pattern specified for the covering above, especially in high-wind areas.
Even with an anti-slip coating, synthetic underlayment is not fall protection; use harnesses and roof anchors and keep the surface clear of debris.
Roll out Malarkey Secure Start Lite underlayment for lightweight, tear-resistant moisture protection on your next roof.
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