Measure your roof from the bottom to the top of your porch roof plus one row your last shingles will slide under your home s shingles.
How to roof a porch with shingles.
Cover roof deck with 30 pound felt underlayment.
Finish your gable roof addition tie in by installing siding to match the existing house and fascia and trim boards at eaves and edges.
See below for a shopping list tools and steps subscr.
If the porch is an open porch anyway this is not so important.
If it is a new roof install the tar sheeting on top of the sheathing.
Pry off old roof shingles with pitch fork.
Installing the first set of shingles you should start from the bottom of the roof and make sure that they are nailed down securely.
If you are renovating the roof you may want to use new sheeting anyway if the old underlay is in poor condition.
Then nail shingles on the new roof and exposed areas of the old roof.
In this video this old house general contractor tom silva explains how to reshingle a roofsteps.
If you are renovating an old roof remove the old shingles first.
Ask this old house general contractor tom silva reveals the best ways to secure shingles to a roof.
Staple felt every 6 to 8 inches.
The next layer should be placed with the bottom of each shingle meeting the seam between the two shingles beneath.
The tar sheeting should be stapled in place and should cover everything to prevent any leakage.
If it comes out to an odd number like 7 5 adjust the spacing to make it 8 rows.
Divide that number by the length of the tabs.
Fold new shingles over the new valley onto the old roof overlapping by at least a foot.