No 15 Building Asphalt Paper Underlayment Over Roof Deck For Shingles

No.15 Asphalt Roofing Felt Building Paper Underlayment Over Roof Deck For Shingles

Asphalt roofing felt introduction:

Asphalt roofing felt is a widely accepted underlayment product that is manufactured from superior quality organic felt that is saturated with asphalt.

Asphalt roofing felt is applied over the rooing deck before installation of asphalt shingles. this product is highly recommended as an underlayment for architectural shingles

Asphalt roofing felt features:

1.  lightweight and economical roof covering

2. shelds water that maybe driven under the shingles

3. 2 inch guilelines for fast and easy installation

4. 432sq.ft of coverage per roll, size is 3ft*144ft

5.higher tear strength

6.  easier roll-out-less sticking

7. flatter installation lay down with less curling

8. heavy duty organic mat

9.high asphalt saturation 

How to install asphalt roofing felt?

• The roof decking should be completely clean and dry. Any stray roof tacks, pieces of old felt, or general debris should be cleared off. Running a flat bottom shovel along the roof decking will help you find any stray nails that should be pulled. Wood splinters should also be pulled out for a smooth, clean decking surface. This step is vital to the success of your new roof and must not be shortchanged in any way.
• Before laying roof felt, all rotten decking must be replaced. Drip edges on the eaves, any valley liners and all flashing should be installed before the tar paper is laid.
• Chalk lines should be snapped 33 5/8” above the eave line. After this, lines should be snapped every 34” as you move up the roof. Have a helper ready to assist with this step, and take care to get the lines straight and clean.
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• As you work, the paper can be tacked down in the center so it won’t blow away.
• When you arrive at the rake, the paper should be cut flush with a knife and then adjusted to line up with the chalk line. The overhang to the next strip should be 3/8 inch. The paper should then be nailed in or stapled every three to four inches across. All nails and staples should be placed on the lower half of the paper.
• Where a roll ends and a new one is begun, the two rolls should be overlapped by four inches.
• Valley, ridges and hips should have a 6 inch overlap of paper.
• Paper can be fitted around vent pipes by cutting a slit and then putting it over the pipe.
• Before securing the end of a row, take time to walk the row, smoothing out any rough spots and matching up the snapped chalk lines. Smooth application of the roofing paper will help you achieve a smooth installation of the shingles.Be sure the tar paper lies in flat strips that are absolutely smooth. There should be no wrinkles or other spots that could catch moisture and cause problems. The overlap of 3/8” should be followed consistently for a smooth look once the shingles are installed

  • width of roll	36in (0.92m)
    lengthof roll	144ft (43.89m)
    thickness of roll	0.4mm
    usage	shingles underlayment
    package	packed in rolls with pallet
    pallet size	1.1m*1.1m
    rolls per pallet	52rolls
    loading quantity for 20GP	1040rolls