How To Layout A Roof

Marking the birdsmouth and the ridge board setback.

How to layout a roof.

If you have a 10 ft 3 0 m wide shed your roof will be 10 ft 3 0 m wide and 5 ft 1 5 m tall. They will have to consider many factors while designing and it should be simulated to view the output. Measure up a distance equal to 25 of the width of the rafter as shown in illustration c and put a mark. Flip the square over and place the tongue along the line made in illustration b.

Lay a piece of 10 ft 5 ft 3 0 m 1 5 m plywood on the floor. Rafter layout with a framing square this example is for a roof with an 8 12 pitch position the square at the end of the rafter board with the tongue on your left and facing away from you. If the roof pitch is the same on both sides of the line then the line divides by two the angles of the walls at the corner. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across the roof.

A roof is an integral part of a building and people try to personalise the roof designs to achieve optimum architectural splendour. Lay down the piece of plywood in an area with ample space. This piece of plywood represents the dimensions for your roof and will serve as an assembly site for your rafters. Check them with a framing square or measure so the lines are parallel with the rake ends.

Plan layout for a racking or midroof pyramid layout method snap two vertical lines called bond lines near the center of the roof the appropriate distance apart. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles. Draw a line down the edge of the tongue as shown in illustration b of the roof layout. Starting at the bottom of the roof map out a guideline with chalk.

Position the square with both the 8 inch on the outside edge of the tongue and the 12 inch on the blade on the upper edge of the board. This can be done with the help of roof design software free download or 3d roof design software free. The colour and material of the roof complement the structural integrity of a building. Poorly constructed roofs endanger the people living in a building so you need to make the roof compatible to the rest of the building in a well engineered style.

It s better to use the factory edges of a half sheet of plywood as a guide.