How to prevent damage.
Flashing on asphalt shingle roof i.
The extra kick at the bottom of the face directs run off away from the structure.
To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold.
Strong gusts may also loosen the metal flashing on the shingles or snap tree limbs causing them to collapse and damage the roofing material.
If you re building a home or replacing the roof choose shingles rated for wind resistance.
This drip edge flashing provides protection from water damage along the eaves and rake of a roof.
To level out an existing asphalt shingle roof rip down reduce the height of two courses of shingles as shown in the drawing below.
The roof also must have only a few penetrations a small amount of flashing and no walls that have to butt up against your shingles.
Nail metal flashing called drip edge along the bottom edge of the roof deck near the gutters.
Layout fabricate overlap and secure asphalt shingles per manufacturer instructions.
And in section 905 which covers the installation of all roof coverings of the 2015 irc the first sentence requires compliance with the code and the manufacturer s.
Because asphalt shingles are routinely exposed 5 in rip down the first strip the starter course so that it is 5 in.
Class a shingles can withstand winds of 60 mph and class f endure 110 mph gusts.
Ultimately it ll be up to what your contractor finds during your roof inspection that determines if a nail over is an option for you.
Install roofing paper membrane.
Leave the old valley flashing in place and install new over it.
Use sticky back ice and water shield as underlayment where ice dams or leaf and twig dams are likely to build up and at.
Basic labor to install asphalt shingle roof with favorable site conditions.
Install your underlayment completely and your shingles up to where the wall begins so that the first piece of flashing or the corner flashing will rest on a shingle.
