Some counter flash some don t etc.
How to properly install roof shinges oround a sky light.
Adhere the joint where the cut edges of the shingles meet the dome with roofing tar.
The following are drawings of one tried and true method presented in step by step installation procedures from dry in to setting a standard 2 x 4 skylight on a curb.
Then install the roofing underlayment over the flashing at the head of the skylight figure 7f.
Install shingles over the roof underlayment up to the sill figure 8a.
Trim the shingles away from the ridge vent hole.
If it s carefully removed when the old roof is torn off it should be reusable.
If you have to replace shingles around a skylight examine the old flashing.
The membrane will seal around the nails.
Nail the drip edge in place using your hammer and roofing nails.
Always install flashing around a chimney and other valleys where two roof planes meet as these areas are more prone to leaks if not protected.
Using the chalk line snap a line between the two marks to get a straight edge.
Nail the piece to the roof at the top outside corners of the u and cover the exposed sides with shingles.
Cut the shingles to fit around the flange s dome.
Install from the bottom up lapping each piece on top of the lower one.
Adhere the shingles adjacent to the flange with roofing tar.
Most residential skylights sit on a raised curb made watertight with metal flashing.
At the top of the unit install membrane flashing directly to the wood deck figure 7e.
Now place the u shaped sill flashing over the shingles as shown and slip it over the skylight s bottom end.
Pull the drip edge down about a half inch from that line to create a gap between the drip edge and the fascia board.
There are many ways to install the primary flashing and roofing materials around skylights.
Some wrap corners some don t.
To start installing shingles line up aluminum drip edge flush with the edge of the roof and make a pencil line at the top on each end of the house.
Attach he ridge cap shingles with two nails each.
