Time-tested organic asphalt saturated felt (tar paper) for sloped roofing underlayment. High asphalt saturation for durable protection.
Traditional saturated organic asphalt roofing felt, commonly known as tar paper or linoleum underlayment. It is manufactured by fully saturating a thick, absorbent organic fiber base paper with premium molten petroleum asphalt. The surface is coated with talcum powder or fine sand to prevent sticking during unrolling, making it a reliable sloped roofing underlay.
| Attribute | Specification |
|---|---|
| Material | Organic fiber paper + Petroleum asphalt |
| Weight Categories | 15 lb, 30 lb, 40 lb, 50 lb, 60 lb |
| Width | 1.0 m |
| Thickness | Approx. 1.0 mm |
| Tensile Strength | >= 300 N / 50mm (Longitudinal) |
| Water Absorption | >= 120% |
| Standards | ASTM D4869 / ASTM D226 |
Install horizontally starting from the low point of the pitched roof. Roll out the asphalt felt over the plywood/wooden deck. Overlap adjacent sheets by 2 to 4 inches at horizontal seams and 6 inches at end laps. Secure using galvanized roofing nails or heavy-duty staples. Install primary roof covering directly over the felt.
Selling unit: Single roll. Approx. 800 to 1,200 rolls per 20ft container (subject to roll size/weight).
Rolls must be stored vertically in an upright position in a dry, well-ventilated warehouse. Shelf life is 12 months.
Customized packaging, logo printing, and adjustable roll specifications (length, width, weight) are available.
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