Seal Roofing Nail After Installing Shingle

For dimensional shingles being installed over a layer of existing dimensional shingles you should always use a 1 1 2 inch roofing nail.

Seal roofing nail after installing shingle.

Once the bond has been separated the nails can be removed and any shingle adjustments can be made. Apply a heavy bead of asphalt cement. Too much makes the shingles susceptible to sagging cracking or blowing off in high winds. Also place the nails high so the next course of shingles will cover them.

Although the sealant when fully activated does a good job of sealing the shingles together it is possible to carefully separate the bond with a flat bar. Place the nails on the base of the step flashing piece so you re nailing into the deck. However installing new flashings including special drip edge flashings made for reroofing will ensure a tight seal and a long life. Once the kick flashing and first piece of step flashing are secure you have to apply a shingle.

Too little overhang directs water into the fascia boards. Some roofers install a layer of waterproof shingle underlayment wsu over the existing shingles at the eave end as would be done for a roof laid on bare sheathing. For most shingles with sealant on the top surface place nails below the sealant strip but above the area that will be visible after the roof is complete. Dot the cement under and around the edge of the last ridge shingle where you removed the nail line.

If you find any nail heads that are sticking up from the roof hammer them down and then coat the head with roofing. If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice. If possible get the most inexpensive pair that you can find and. This article discusses best roofing practices for the installation of asphalt roof shingles including installation temperature shingle sealing methods shingle course offsets asphalt shingle nailing location and specifications low slope and steep slope limits for asphalt shingles and roof flashing at building eaves and around skylights.

Wear gloves when working with sticky roofing cement. Shingles with sealant on the back surface often have a line or lines to indicate the location on the shingle surface where the nails are to be placed. The end of a roof s shingles should only overhang off your roof between 0 5 and 0 75 inches if drip edge is installed. This provides added protection against ice dams.