Where a roll ends and a new one is begun the two rolls should be overlapped by four inches.
Nails for roof tar paper.
Since you are new to the game i would greatly recommend you use 30 felt over 15.
Paper can be fitted around vent pipes by cutting a slit and then putting it over the pipe.
Find cap nails at lowe s today.
May 30 2018 before applying roofing you ll need to cover the sheathing with roofing felt also often called tar paper most local codes call for using 30 pound felt.
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Tar paper 15 felt use staples or nails.
Space out the nails.
If you are only tacking down the felt for while you roof the building then 3 8 tack hammer staples are more then enough.
Alternatively you can use galvanized nails and a hammer or an electric staple gun with roofing staples.
Some roofers prefer to attach felt underlayment with 1 inch roofing nails or special nails with plastic washers but most codes allow staples which are easier to drive.
Electro galvanized steel roofing nails 30 lb pack 14 x 1 3 4 in.
Plastic round cap roofing nail 3 000 pack 11 x 1 1 2 in.
3 use the grip rite 11 x 1 1 4 in.
Item 169827 model 5003002.
Pack 14 x 1 1 2 in 4d stainless steel shake shingle nail 5lbs pack price.
3 degree electro galvanized steel roofing nails 5 lb pack for applying roofing asphalt shingles insulation board and felt to wood substrates.
Use the grip rite 11 x 1 1 4 in.
All nails and staples should be placed on the lower half of the paper.
12 x 1 in.
Grace ice water shield 36 in x 75 ft 200 sq ft rubber roof underlayment.