Create the slot by cutting through the sheathing along each chalk line on either side of the peak.
How to add a peak on a roof.
Now you can begin shingling your roof preferably with asphalt shingles.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
The total run is the distance from the peak to the edge of the roof which in this case is the total width divided in half which is equal to 10 feet or 120 inches.
Nail the shingles to the felt starting from the outside in and cutting to fit when you reach a corner or edge.
Calculate how much the roof span is going to be by measuring from one top plate to the other top plate.
For your first row of shingle at the bottom of the roof place a shingle piece with the solid side overhanging the drip edge feels upside down by 1 4 and install using roofing nails.
They form an upside down v with the point at the top of the addition roof.
Start by installing tar paper on top of the plywood.
Step 2 calculate material prices.
Step 4 re sheath roof.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
The run or half the building span is the base of the triangle.
Adding pitch to a flat roof.
The rise or height of the roof at its peak is the altitude of the triangle.
Set the power saw s blade depth to the thickness of the sheathing and any remaining shingles about 3 4 inches to 1 inch.
Step 3 prepare the materials.
Step 1 calculate the roof span.
Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof.
Cut it to size using a box knife and install with a staple gun.
Step 5 replace roofing.
Once the trusses soffit and fascia are in place lay the roofing felt in place.
Rather than a single slope a gable roof consists of two slopes that meet at a peak running down the middle of the roof.