Roofing shingles come in strips that are generally about 3 feet long and 8 or 10 inches wide.
How to install a shed roof.
To build a shed roof you ll need rafter boards plywood gusset plates plywood sheathing felt roofing paper and shingles.
In order to make your roof water tight and to eliminate wind infiltration first place tar on the bottom edge of the roof and lay a row of roofing shingles upside down all the way across the bottom of the roof.
Continue adding panels until the roof is covered.
Metal roofing is also available in the form of shingles.
The silicone will spread and adhere creating a seal.
You may need to cut panels to fit angles using a circular saw with a metal saw blade.
Allow about 1 foot 0 30 m of the felt to hang over the hip.
For hip type shed roofs which include slopes on all 4 sides begin at the square hip at the top of the roof.
Make a birdsmouth notch at the end of each rafter to help it fit into place.
First cut your rafter boards to size using a circular saw to make sure they fit your roof.
Never install the felt vertically across your roof.
Install the panel so that the short lip overlaps the large lip.
Adjust the felt as you roll it making sure that it s straight with no bubbling.