Chances are your roof structure was designed for a dead load of one layer of shingles plus extra for snow and a safety margin.
Roof shingles on stairs.
Nail metal flashing called drip edge along the bottom edge of the roof deck near the gutters.
Stair stepping shingles means installing them in a stair pattern.
Use sticky back ice and water shield as underlayment where ice dams or leaf and twig dams are likely to build up and at.
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.
Good quality composite shingles can weigh 350 to 450 pounds per square 100 square feet of roofing installed.
This 1 2 tab has to be cut off where it hangs off the left edge of the gable roof.
Next place the rough side up and nail or glue the shingle centered onto the wood.
Installing new roof shingles over old effectively doubles the weight of the roofing so you have to.
Roof shingles are installed in such a fashion that each seam or joint is overlapped by a shingle further up the roof.
Allow drying before walking on them.
Lay the second row of shingles.
To do this simply cut the tile to the size of the step using a utility knife.
Professional installers have long preferred the rugged dependable professional installers have long preferred the rugged dependable performance that only a timberline roof can offer.
Set the first shingle of the second row back a half tab 6 inches 17 centimeters from the edge of first shingle on the first row and so that the bottom of its tabs just touches the tops of the cutout slots on the shingle below.
For the sake of aesthetic i left about 2 inches of the untouched stairs on each side of the tile.
Extra shingle from our roof put on our stairs so we don t slip and fall from snow.
What are roof shingles.
Many pros shingle in a vertical line up the roof because it s much faster.
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