How To Correctly Build A Roof

When you nail in the second boards offset the seams of the upper and lower layers by at least 24 in 61 cm.

How to correctly build a roof. Top plates cannot be less than 2 in 5 1 cm thick. Determine how many rafters you ll need for the roof. Depending on how wide the home is you can divide the total length in feet by two to determine how many trusses will be needed. Nail it every couple of feet.

Purchase your materials including prefabricated trusses plywood covering and roof tiles. Arrange the shingles so the ends and the tab notches do not lie directly above gaps in the shingle below. Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs. To build a roof start by deciding whether you want to put up a flat or pitched roof on your building.

For most load bearing requirements a roof truss will need to be placed every two feet along the walls. Nail the first boards on top of your wall where you plan to build your roof. Install the drip edge on the gable ends of the roof after you finish installing your underlayment. Measure the length width and rise of one section your roof.

Use a tin snips to cut the drip edge to size. Start at the bottom side of the gable and overlap the sections of drip edge a few inches as you work your way up the roof see figure a. Install shingles from the lower left corner working to the right and also working up the roof slope. If the gaps lined up water could get directly onto the roof sheathing and then seep in through a nail hole.