|
제품 상세 정보:
|
| 상품 이름: | 펠트 서류상 underlayment | 타입: | No.15/No.30 |
|---|---|---|---|
| 상술: | ASTM D4869/ASTM D226 | 두께: | 0.4mm-1.0mm |
| 폭: | 36inch | 생산력: | 일 당 500rolls |
| 성분: | 논문과 아스팔트 | 기교: | 수정 |
| 색: | 검정색 | 브랜드를 싸기: | 주문 제작됩니다 |
| 하이 라이트: | 타르 페이퍼 종합적 팰트 가정 밑받침,36 인치 종합적 팰트 가정 밑받침,astm d226 종합적 팰트 가정 밑받침 |
||
Tar Paper Underlayment Asphalt Shingles Underlayment Felt Paper
What is felt paper
Tar paper, also known as felt paper, is a type of underlayment used for roofing. Underlayment is a protective second layer installed between the roof deck and the shingles. It helps to seal the roof against leaks, resulting in a roof that is stronger overall and lasts longer.
Felt paper is made from kraft raw paper. This base is then coated with asphalt or bitumen to repel water but still allow for breathability. It is applied across the entire roof deck prior to shingle placement.
Why use felt paper in roofing
Roofing underlayment provides a crucial protective barrier between the rooftop and the home's interior. This ensures that air flows and that humidity doesn't become trapped in the roof and interior of the home.
Felt paper is a tried and true option for roofing underlayment. It is more affordable than purely synthetic underlayment, and it is easier to install.
Felt paper benefits
Felt paper should be used across the entire roof, including eaves, valleys, low-slope surfaces, chimneys, skylights, and vent pipes. Compared to other underlayment, felt paper is affordable material, easier to install and longer lifespan. It has highly visible alignment lines for easy installation.
Felt paper specifications and physical properties data
| Test item |
ASTM D4869 30# |
ASTM D226 30# |
ASTM D4869 15# | ASTM D226 15# |
| 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) |
19.1mm (radius) |
12.7mm (radius) |
12.7mm (radius) |
| Tear strength at 23±2°C min | 3.0N | 5.0N | 2.0N | 2.5N |
| Breaking strength at 23±2°C min MD | 40lbf/in | 40lbf/in | 30lbf/in | 30lbf/in |
| Breaking strength at 23±2°C min CD | 20lbf/in | 20lbf/in | 15lbf/in | 15lbf/in |
| Loss on heating at 105°Cfor 5h max | 6.0% | 4.0% | 6.0% | 4.0% |
| Width of the roll | 36 in | 36 in | 36 in | 36 in |
| Area of the roll | 216 ft2 | 216 ft2 | 432 ft2 | 432 ft2 |
| Net mass of saturated felt,min | 660g/m2 | 1200g/m2 | 360g/m2 | 560g/m2 |
| Saturation,%by wt., min | 120% |
150% |
100% | 120% |
How to store
It requires protection from damage and the weather. Store rolls upright in a dry location and never install when wet or over a wet roof deck.
담당자: Angela
전화 번호: 008615511775265
