How Do I Use A Roofing Square

Place the square with its fence on the top edge of the lumber.

How do i use a roofing square. A square roof is one in which all the corners are constructed at 90 angles. When framing a roof whether metal shingled or shaked it must be square. Read the pitch on the side of the rafter square. Step 2 using the roofing square take your square and place the shorter end of the tool onto the tongued rafters at the 8 mark and the longer arm along the 16 mark.

Squaring metal roofs is relatively easy and required for proper installation. Then place a torpedo level on the fat base of the rafter square and adjust the square until the level is level. Place the pivot point against the shingles. Climb to the peak of your roof.

When covering the roof with plywood or metal sheets it s necessary to fit the materials to the rafters exactly. This is simply 100 square feet of roof. Bring a two foot level. The answer is the number of roofing squares for the roof.

Hold a torpedo level flat against the lip of the fence and adjust the height of the square until the bubble inside the level is centered. Then using a tape measure determine how many inches are between the middle of your level and your roof. Find the inch line on the roofing square and the get the number directly below. Use the second row of numbers on the roofing square to determine the length of the hip or valley rafters.

Convert the area to roofing squares. Locate the desired angle on the hypotenuse side of the square and pivot the tool until that angle s notch lines up with the top edge. Step 3 template. For instance if the roof is 1550 square feet then it is 16 squares.

Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. Multiply it by the total run of the common rafter. To find the squares divide the overall roof area by 100 and then round up. Align the pivot point with the outer edge of the roof where it meets the side of the structure making sure the fence is facing up.

You can then see the cut of the roof and also the cuts which need to be made to the piece of wood. If the inch line is 8 the number below it is 47 65 cm 18 76 inches. You can use the rafter to mark off your plumb cut where the rafter butts the ridgeboard the bird s mouth the angled cut where the rafter bites into the wall and the tail cut the rafter s. With a torpedo level and a speed square you can pretty accurately gauge the pitch of any roof with a gable end photo 1.