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Product Details:
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| Product Name: | ASTM D 4869#15/30 | Size: | 36in*144ft/36in*72ft |
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| Tensile Strength: | 133,9 +/- 59,5 N | Mass: | 238,8 +/- 1,3 G/m2 |
| Usage: | Slope Roof Underlayment | Surface: | Smooth, Sand |
| High Light: | felt paper underlayment,synthetic felt paper |
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Slope Roof Waterproof Material Asphalt Roofing Felt Paper roofing tar roll
(felt paper, asphalt felt paper) is a sheet material impregnated with bitumen (asphalt), similar to tar paper, used in building construction. The term felt comes from the historical method of making the base material. Felt is an unwoven fabric that is produced by matting fibres under pressure. The fibres form the structure of the fabric.
Physical Requirements
| Test item |
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
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12.7mm (radius) |
12.7mm (radius) |
| Tear strength at 23±2°C min | 2.5N | 2.5N |
| Breaking strength at 23±2°C min MD | 30lbf/in | 40lbf/in |
| Breaking strength at 23±2°C min CD | 15lbf/in | 20lbf/in |
| Loss on heating at 105°Cfor 5h max | 6.0% | 6.0% |
| Width of the roll | 36 in | 36 in |
| Area of the roll | 216 ft2 | 216 ft2 |
| Net mass of saturated felt,min | 400g/m2 | 660g/m2 |
| Saturation,%by wt., min | 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.
Characteristics
Product Name: ASTM D-4869 15#
Average roll weight,30lbs
width:36"(0.914m)
Roll Contents:432sq.ft(40sqm)
Roll per pallent::52
Pallent size:1.1m*1.1m
Asphalt-saturated heavy-duty roofing felt is available in 15- and 30-pound weights. The best weight for roofing felt is the 30-pound product, because it provides thicker and stronger footing for roofers that does not tear out, especially on steep roofs where footing is critical. Besides that benefit, if shingles come loose during a storm and tear off, the 30-pound roofing felt stays intact, whereas 15-pound tar paper may not. This offers your home protection until you can repair it. In regions where snow and ice prevail during the winter months, adding an ice and water shield in addition to roofing felt makes a watertight and energy efficient covering for the roof. Other options for underlayment include nonbitumen synthetics and rubberized asphalt.
Features & Benefits
Contact Person: Angela
Tel: 008615511775265
