How To Tie Into Existing Roof Shingles
- Step 1: Building the New Roof. The very first step is to set up the trusses or rafters of the addition’s walls so that...
- Step 2: Install the Valley Board. The next step in the process is to install a valley board over the old shingles. The...
- Step 3: Tie-in the Shingles. Now it is time to use a cut valley in order to tie the new...
How do you tie into existing roof shingles?
To tie into existing roof shingles use a cut valley. Install trusses to meet the eave of the house and nail 2 valley boards into place, securing with roofing cement.
How do you use a cut valley for shingles?
Now it is time to use a cut valley in order to tie the new shingles in with the old roofing system. After framing and sheathing the new addition’s roof, snap a line over the existing roof shingles. You want to be about two inches above the very center of the valley itself. From here, cut through both the underlayment and the shingles.
How do you replace a shingle roof with shingles?
Frame and sheathe the addition roof, and snap a line on the existing shingles 2 inches above the valley. Cut through the underlayment and shingles, lay the new shingles, then re-lay the shingles you removed before.
Can you put shingles on a flat roof?
Keep in mind though, that roofs with slopes less than 9.5 degrees cannot support shingles. Instead, your contractor will connect the flat roof to your existing shingle roof and finish the flat area with a modified bituminous membrane. Ryan Womeldorf has more than a decade of experience writing.
How do you tie new shingles to an existing roof?
1:553:06The end of the roof. So there you go we got the base sheet down Prime ready to go start. Putting onMoreThe end of the roof. So there you go we got the base sheet down Prime ready to go start. Putting on base sheet and cap sheet start installing metal in critical areas and go from there thanks.
How do you join two roofs together?
A valley joint, the two overlapping sections of roofing material, is cut to form an inverted V-shaped ridge. The valleys can be placed either at the top or bottom of each section so that they overlap with one another.
How do you add a second layer of shingles?
Remove shingles from any area where you notice deterioration or damage to the roof decking. Replace the damaged roof deck with 3/4-inch OSB board. Add a layer of shingles over the newly repaired area before you install your second layer of shingles.
How do you blend shingles?
If you're looking to blend new and old shingles, saving shingles from your original roof installation is an excellent first step. If fading isn't dramatic, your contractor may be able to achieve a uniform look with the same materials. If shingles have faded, try going a shade lighter with the same manufacturer.
How do you add an addition to an existing roof?
1:035:09Line up again this is an extremely common method for framing. Room additions. Where you would have aMoreLine up again this is an extremely common method for framing. Room additions. Where you would have a gable roof on one side or even a hip roof. And then where it would connect to a sloping. Roof.
How do you join different roof pitches?
2:0020:53And pivot around anytime you get this protractor tool jumping to these different surfaces just putMoreAnd pivot around anytime you get this protractor tool jumping to these different surfaces just put it on the surface you want and hold the shift key to lock the inference then it will behave.
Is it OK to put new shingles over old ones?
It's possible to shingle over shingles, to lay new shingles over existing ones and avoid the cost of a tear-off. If conditions are right, new shingles laid over old ones can be just as attractive and durable as shingles laid on bare sheathing.
Is it OK to put 2 layers of shingles?
In most states, you're only allowed to have 2 layers of shingles on a roof for fire safety reasons. However, you'll still see roofs that have 3 or 4 layers today. If you already have 2 or more layers, a contractor will recommend a full replacement.
Can you put a new roof over an old roof?
Roofing over an existing roof is also called reroofing or an overlay. It is the process where roofers install a new roof over your existing one, i.e. add a new layer of shingles, which means that there is no tearing off of the old roof.
What is the purpose of the plastic strip on shingles?
Note: The film strips on the back of each shingle are to prevent sticking together of the shingles while in the bundle. Their removal is NOT required during application.
How wide is a roll of shingle underlayment?
Lift the underlayment out of the way, and then lay a 3-ft.-wide roll of waterproof shingle underlayment in the valley. Shingle the addition roof, letting the new shingles fold through the valley center and onto the old roof deck by at least 1 ft. Re-lay the shingles you removed from the existing roof.
Can you strip shingles on a new roof?
You can strip the shingles out of the area that the new roof will cover, but to be safe, I often leave the old shingles in place and frame over them . You’ll need to install a valley board or nailer over the old roof shingles to create a solid nailing surface for installing jack rafters (see drawing).
