Flashing On Asphalt Shingle Roof I

How to prevent damage.

Flashing on asphalt shingle roof i.

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. Install drip edge eave trim and valley flashing. Gibraltar drip edge flashing can be used with asphalt shingles or metal roofing panels. 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.

To level out an existing asphalt shingle roof rip down reduce the height of two courses of shingles as shown in the drawing below. Layout fabricate overlap and secure asphalt shingles per manufacturer instructions. Every asphalt roofing manufacturer s installation instructions that i have ever seen specify step flashing as the preferred way to flash the roof to wall juncture. Strong gusts may also loosen the metal flashing on the shingles or snap tree limbs causing them to collapse and damage the roofing material.

Use sticky back ice and water shield as underlayment where ice dams or leaf and twig dams are likely to build up and at. Leave the old valley flashing in place and install new over it. If you re building a home or replacing the roof choose shingles rated for wind resistance. To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold.

This drip edge flashing provides protection from water damage along the eaves and rake of a roof. 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. Basic labor to install asphalt shingle roof with favorable site conditions. The extra kick at the bottom of the face directs run off away from the structure.

Class a shingles can withstand winds of 60 mph and class f endure 110 mph gusts. Nail metal flashing called drip edge along the bottom edge of the roof deck near the gutters.