Roofing felt, also referred to as "builder's felt" or "roofing felt paper," is underlayed on roofs before coverings like asphalt or wood shingles are added. Resembling black tar paper, roofing felt's main purpose is to prevent moisture from leaking into a roof. Available in rolls, roofing felt is made with a fiberglass or polyester center and saturated with pieces of asphalt, tar and bituminous coal. It is sometimes coated with sand
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ASTM D 4869#30 Roofing Felt Paper 0.5--0.6mm Thickness With Long Service Life
| Place of Origin | Hebei China |
|---|---|
| Brand Name | Hebei Jianda |
| Certification | ISO9001 |
| Model Number | ASTM D 4569#30 |
| Minimum Order Quantity | 100rolls |
| Price | as dicussed |
| Packaging Details | Packed in rolls with pallets or customized |
| Delivery Time | within 10days |
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 1000rolls per day |
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xProduct Details
| Product Name | ASTM D 4869#30 | Size | 36in*72ft |
|---|---|---|---|
| Material | Kraft Paper And Bitumen | Weight | 10KG-15KG Per Roll |
| Thickness | 0.5--0.6mm | Color | Black |
| High Light | felt paper underlayment,synthetic felt paper |
||
Product Description
Tar Paper ASTM #30 Asphalt Roofing Felt Paper Asphalt Roofing Membrane
| Test item |
ASTM D-226 15# |
ASTM D-226 30# |
ASTM D-4869 15# |
ASTM D-4689 30# |
|
Pliability at 23±2°C.tested shall not crack when bent 90° at a uniform speed over a rounded corner of radius in table for each |
12.7mm (radius) |
12.7mm (radius) |
12.7mm (radius) |
12.7mm (radius) |
| Tear strength at 23±2°C min | 2.5N | 2.5N | 2.5N | 2.5N |
| Breaking strength at 23±2°C min MD | 30LBF/in | 40lbf/in | 30lbf/in | 40lbf/in |
| Breaking strength at 23±2°C min CD | 15lbf/in | 20lbf/in | 15lbf/in | 20lbf/in |
| Loss on heating at 105°Cfor 5h max | 4.0% | 4.0% | 6.0% | 6.0% |
| Width of the roll | 36 in | 36 in | 36 in | 36 in |
| Area of the roll | 432 ft2 | 216 ft2 | 216 ft2 | 216 ft2 |
| Net mass of saturated felt,min | 560 g/m2 | 1270g/m2 | 400g/m2 | 660g/m2 |
| Saturation,%by wt., min | 120% | 150% | 100% | 120% |
Used
Asphalt shingles are the most commonly used covering for homes in the United States. Four out of five homes are covered with asphalt shingles, according to the Asphalt Roofing Manufacturers Association. The type and amount of roofing felt to apply varies according to roof slope. If the slope is between 3:12 and 4:12, use two layers of #15 felt for asphalt shingles. If the slope is greater than 4:12 -- which provides more water drainage from the roof -- use one layer of #15 felt. Use #15 for asphalt shingles weighing 240 pounds per square or less; consider using #30 only if shingle weight is heavier than 240 pounds.
Characteristics
Average roll weight,Lbs/roll:54lbs
width:36"(0.914m)
Roll Contents:216 sq.ft(20sqm)
Roll per pallet::30
Pallent size:1.1m*1.1m
Tips:
When applying roofing felt, pay careful attention to areas that receive the most water runoff, including roof hips, ridges and areas around adjoining walls. Cover those areas with an additional 6 inches of felt, from each direction.
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