Manufacture Sell Asphalt Impregnated Paper Board Bitumen Roofing Felt for Shingle Roof

 

Asphalt roofing felts are designed as an underlayment product to be applied over the roof deck prior to the installation of asphalt shingles. Install asphalt roofing felt as a secondary barrier to moisture caused by wind driven rain and ice damming. A heavy-weight asphalt roofing felt made of a specially formulated organic sheet which has been fully saturated with waterproofing asphalt. Asphalt roofing felt used as roof underlayment beneath asphalt shingles,wood shakes,tiles and other slope coverings.  Asphalt saturated organic roofing felt 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. There are totally four types: ASTM D-4869 15#, ASTM D-4869 30#, ASTM D-226 15#, ASTM D-226 30#.

 

 

loading quantity

ASTM D-4869 15# 36in*144ft*0.4mm

loading quantity:1040 rolls with pallet,

1400rolls in bulk.

ASTM D-4869 30# :36in*72ft*0.6mm

loading quantity: 1040 rolls with pallet,

1400 rolls in bulk.

ASTM D-226 15# :36in*144ft*0.6mm

loading quantity: 600 rolls with pallet, 800

rolls in bulk.

ASTM D-226 30# : 36in*72ft*1.1mm

loading quantity: 600rolls with pallet, 780

rolls in bulk.

Installtion instructions:

1) The roofing deck must be clear of all debris and moisture prior to installation of  organic roofing felt. 
2) Roofing felt should be installed from the bottom of the roof deck in horizontal  layers. The first layer of felt should be installed to cover the entire bottom edge of  deck. This increases the water shedding ability of organic roofing felt.
3) Anchor the top corner of the roofing felt after the roll has been properly  positioned in place and spread the roll across the roof. Care must be taken to roll  out roofing felt roll smoothly and avoid any wrinkles as the roofing sheet is rolled  across the roof. 
4) Apply underlayment with minimum 12ga, 1-1/4" ring shank nails through  minimum 32ga, 1-5/8" diameter tin caps. Fastener spacing should be a maximum  of 6 inches on center at laps and 12 inches on center in two rows in the field.
5) For Roof Slopes from two units vertical in 12 units horizontal (17% slope) and up  to four units vertical in 12 units horizontal (33% slope) underlayment must be  applied in double layer with a 19 inch headlap and minimum 6 inch sidelap. Distortion in the roofing felt underlayment shall not interfere with ability of  shingles to seal. 6) For roof slopes of four units vertical in 12 units horizontal (33% slope) or greater,  underlayment shall be applied in a single layer with a 4 inch headlap and  minimum 6 inch side lap. Distortions in the roofing underlayment shall not  interfere with ability of shingles to seal. 
7) At hip and ridge intersections, fasten the top course if it terminates at the top edge  of the roof. Otherwise, overlap the underlayment over the hip or ridge and fasten  the roofing felt. 8) In Valleys, lay a vertical section of the organic roofing felt in the middle of the  valley along the length of the valley prior to installation of the horizontal courses of the roofing felt. Horizontal courses at the valley intersection shall be woven.
9) Take precaution to avoid wrinkles. In the event some wrinkles are formed while  fastening the felt, slice the wrinkles and fasten them flat to the deck. Then seal the  cuts with waterproofing cement.

Cangzhou Jiansheng Building Waterproof Materials Co., Ltd. is a professional enterprise integrating the production and sale of building waterproof materials. Our company covers an area of 10, 000 square meters. There are 60 people in our company, including 5 professional senior engineers and 24 technicians. Our company is to set up a technological research team which consists of professionals, scholars and experts. Our company is specialized in the production and operation of various types of high and mid-grade new building waterproof materials, including SBS, APP modified bitumen membrane, polypropylene, and PE polyester. We have domestically advanced production lines with annual production capacity of 8 million square meters, advanced equipment, and strict scientific quality control system according to standards. At the same time, we produce SBS polymer waterproof coating, Chloroprene latex, asphalt and other series of waterproof paint. Our company is also equipped with first-class raw materials testing equipment as well as process control and finished product quality testing center. Our company is willing to cooperate with friends sincerely to advance hand in hand and create a better future.