Roof top loading.
Owens corning roofing for 0 5 12 pitch.
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Owens corning provides estimating guidelines to estimate the amount of shingles nails and underlayment you will need for your roofing project as well as tips for determining your roof slope.
If this rise is 4 then your roof slope is 4 in 12.
Minimum 6 inch roof deck boards minimum 3 8 inch plywood minimum 7 16 inch osb sheathing spaced minimum 1 8 inch and maximum 1 4 inch.
The deckseal self adhered roofing system is an excellent solution for low slope applications 1 4 12 to 2 12 on residential re roofing jobs.
Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.
Regardless of deck type used the roofing.
Lay shingle bundles flat.
Owens corning impact resistant hip ridge shingles must be used.
Do not bend over the ridge.
If this rise is 4 then your roof slope is 4 in 12.
Determine your roof pitch.
Roof slopes are always expressed with the vertical rise mentioned first and the horizontal run.