How To Add New Shingles To Existing Roof

After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in.

How to add new shingles to existing roof.

Nail the shingles just above the tab slots. Their tab slots should not line up with the tab slots of the starter course if there are any. Remove the cover and then nail the old shingles back down again. Starting two courses higher than where the new ridge meets the old roof unseal the shingle tabs a thin flat bar or a joint taping knife works well and pop the nails of the overlying course.

Use a roofing shovel. Dave gives her some advice to help her with this project. If you nick or tear the old flashing piece then go buy a new one. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the.

The very first step is to set up the trusses or rafters of the addition s walls so that. Rip cut the shingles for the first course so they butt up against the third course of existing shingles and are even with the front edge of the starter course. Take careful measurements to determine how many trusses you will need. By margaret of lotus ca question.

You need to tear off the roof and install a new one. Building the new roof. So if there are already two layers the choice is made for you. There are already two layers of shingles on your roof most building codes only allow two layers of any type of roofing on your home.

Install new shingles to the lower edge of the opening. To tie into the side of an existing roof put a new roof truss on the walls of the addition brace it upright then snap chalklines on the shingles to mark the center line of the new roof valleys where old and new roofs will connect. Cut the existing shingles and pry up carefully. How to tie into existing roof shingles step 1.

Install the valley board. The next step in the process is to install a valley board over the old shingles. Up from the valley center and cut through the shingles and underlayment. The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley.

I am replacing a deck with a covered porch. How to roof over existing shingles step 1. Integrate shingles on new porch roof with existing shingles on home one of our readers is interested in knowing how to integrate shingles on a new porch roof with the existing shingles on their home.