Adhere the joint where the cut edges of the shingles meet the dome with roofing tar.
How to properly install roof shinges oround a sky light.
Trim the shingles away from the ridge vent hole.
Nail roofing shingles over the bottom membrane.
Install new flashing metal flashing is often called drip edge along the bottom of the roof near your gutters.
If the plumbing vent is close to the peak of the roof lap the shingles over the peak of the roof.
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.
If you have to replace shingles around a skylight examine the old flashing.
Nail the piece to the roof at the top outside corners of the u and cover the exposed sides with shingles.
Attach he ridge cap shingles with two nails each.
At the top of the unit install membrane flashing directly to the wood deck figure 7e.
Cut the shingles to fit around the flange s dome.
Using the chalk line snap a line between the two marks to get a straight edge.
Now place the u shaped sill flashing over the shingles as shown and slip it over the skylight s bottom end.
There are many ways to install the primary flashing and roofing materials around skylights.
The membrane will seal around the nails.
Some counter flash some don t etc.
Nail the drip edge in place using your hammer and roofing nails.
Install shingles over the roof underlayment up to the sill figure 8a.
If it s carefully removed when the old roof is torn off it should be reusable.
Then install the roofing underlayment over the flashing at the head of the skylight figure 7f.
Some wrap corners some don t.
Install from the bottom up lapping each piece on top of the lower one.
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.
Pull the drip edge down about a half inch from that line to create a gap between the drip edge and the fascia board.
