A typical roof has three layers a felt layer and two layers of overlapping shingles.
How to apply double coverage roll roofing.
A fiber reinforced asphalt coated sheet with a granular ceramic surface to protect against uv weathering and physical damage.
Applying double coverage roll roofing double coverage roll roofing is a 36 inch wide sheet of which 17 inches are intended for exposure and 19 inches for a selvage edge.
This product serves in most low slope roofing applications.
It has just one layer so it goes.
It provides double cover age for the roof and may be used on slopes down to i inch per foot.
If you install roll roofing using the double coverage method it will last longer.
It can be installed simply and requires only nails and roofing cement.
Nail the roofing strips parallel to the roof edge set in 1 and 8 from the roof edge with nails spaced 4 o.
Roll roofing is a lightweight roofing material that s sold in a large roll.
Double coverage roofs last much longer up to fifteen years or more.
Prepare roof edges cant strips.
Install drip edge and install 9 cant strips of roll roofing material along the rake and eaves edges gable ends and lower roof edge such that the roofing strip overhangs the roof deck by 1 4 to 3 8.
Roll roofing is often installed over bare wood sheathing or sheathing that has been painted with a primer.
Roll roofing is a good choice for covering an existing roof.
To apply rolled roofing you ll need your roof measurements a broom chalk to mark lines a razor blade to cut the material roofing cement nails and a hammer to hold down the material.
Applying roofing felt first will better protect the sheathing against condensation as well as against leaking.
Coverage cedar blend fiberglass mineral surfaced cap roll roofing.
How to install roll roofing on low slope roofs.
Roll roofing is different.
If the job must be done anyway store the rolls in a warm place prior to application or unroll and cut them into strips no longer than 18 feet and let them.
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The 17 inch exposed portion is covered with.
