How To Shingle An Out Of Square Roof

Add extra roof ventilation.

How to shingle an out of square roof. Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed. Cap the ridges to prevent wind from blowing over overlap seams. Center a minimum 610 mm 24 wide minimum 28 gauge pre finished galvanized metal valley liner in the valley and fasten with only enough nails to hold it in place nailing at the edges only. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.

Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles. Make sure you keep this first row straight using the ice and water shield as a guide. However shingles are packaged in a way that they are light enough for the average person to carry around. Align the lower edge and end with the corresponding lower edge and end of the roof.

Roll out 3 feet of the roof starter roll at one corner of the lower edge of the roof. Overlap each metal piece by at least 150 mm 6 and use asphalt plastic cement under each section of overlap. Out of square metal roof install help i have been a roofer for the last 19 years mostly doing comp flat roofs tile valley repairs etc. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across the roof.

Out of square roof taking for granted for instance a 1 shingle overhang at the eave at the larger end i would start at the 11 point and mark 5 increments up to the 51 point then at the lesser end i would again start at the 11 point but this time mark 4 7 8 increments up to the 50 point then snap the guide lines and once these 9 courses are run just shingle as normal. Known in the trade as vertical racking or staggering this how to lay shingles method enables the roofer to install a single column of shingles all the way to the peak without the wasted back and forth motion necessary to fill several rows of stair steps. Fasten the upper corner of. Many pros shingle in a vertical line up the roof because it s much faster.

I have just started getting into the metal roofing side of things and had a question on how to correct a severely out of square roof. A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. A square simply refers to a 10 x 10 square of roofing. Repeat this on both sides of the roof.

When installing the paper you will overlap the felt paper per local building code usually 2 4. This is simply 100 square feet of roof. Install underlayment and caulk vent stacks with roof sealant to make your plumbing vents leak proof. The answer to this initial question is yes.

Add vent flashing seal nail heads then shingle over it. Start at the eave area just over the ice and water shield with a three inches of overlap about 3 and work your way up.