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Product Details:
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| Weight: | 6kg--15kg | Material: | Kraft Paper And Asphalt |
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| Saturation:: | 100%,120% | Specification:: | 36''x144' |
| Color: | Black | Place Of Origin: | China Heibei |
| High Light: | asphalt roof membrane,asphalt waterproofing membrane |
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Building Materials Asphalt Roofing Membrane Paper Roll Tar Paper
Introduction
Roofing felt, or tar paper, is infused with a petroleum-based solution to provide an additional layer of roof protection under shingles. Although tar paper has traditionally been the standard undercoating for shingles, as of 2010, synthetics are becoming more popular as an underlayment.
Advantages
1. higher tear strength than other underlayments
2. Better protection - superior asphalt saturation means improved waterproofing
3. Easier application - accurate lay lines allow for easier, more consistent shingle application,very popular.
Installation
Installation is fairly simple. The paper is rolled out on the decking and nailed down with fasteners. Bobvila.com recommends using, “low-profile capped-head nails or thin metal tins and roofing nails.” Tins should have a diameter of at least 1 inch. Nails should be spaced a maximum of 6 inches apart on all seams and 12 inches everywhere else. Galvanized fasteners should be used if the roof is within 3,000 feet of salt water. It's also recommended to overlap each row of underlayment by at least 19 inches to ensure proper coverage and protection.
Dimensions Guide:
ASTM D-4869 15#
Item weight: 35 lbs.
Item weight: 15.87kg
Item length: 144ft or 43.89m
Item width: 3ft or .91m Square ft.: 432 (4 squares)
ASTM D-226 15#
Item weight: 50 lbs.
Item weight: 22.7kg
Item length: 144ft or 43.89m
Item width: 3ft or .91m Square ft.: 432 (4 squares)
| Test item |
ASTM D-226 15# |
ASTM D-226 30# |
ASTM D-4869 15# |
ASTM D-4689 30# |
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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% |
Contact Person: Angela
Tel: 008615511775265
