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36inch Astm D226 Tar Paper Synthetic Felt Roof Underlayment

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36inch Astm D226 Tar Paper Synthetic Felt Roof Underlayment

36inch Astm D226 Tar Paper Synthetic Felt Roof Underlayment
36inch Astm D226 Tar Paper Synthetic Felt Roof Underlayment

Large Image :  36inch Astm D226 Tar Paper Synthetic Felt Roof Underlayment

Product Details:
Place of Origin: China
Brand Name: Jianda
Certification: ISO,ASTM
Model Number: RF
Payment & Shipping Terms:
Minimum Order Quantity: 100rolls
Price: Negotiated
Packaging Details: Pallets or customized
Delivery Time: 7 days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 1000rolls per day

36inch Astm D226 Tar Paper Synthetic Felt Roof Underlayment

Description
Product Name: Felt Paper Underlayment Type: No.15/No.30
Specification: ASTM D4869/ASTM D226 Thickness: 0.4mm-1.0mm
Width: 36inch Production Capacity: 500rolls Per Day
Ingredients: Paper And Asphalt Technics: Impregnation
Color: Black Packing Label: Customized
High Light:

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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.

36inch Astm D226 Tar Paper Synthetic Felt Roof Underlayment 0

 

 

 

 

 

Contact Details
Cangzhou Jiansheng Building Waterproof Material Co.,Ltd

Contact Person: Angela

Tel: 008615511775265

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