How To Shingle A Low Slope Roof

However those naysayers would be wrong.

How to shingle a low slope roof. Low slope roofs present a challenge where water is concerned. The acceptable underlayment installation options for low slopes are described in the canadian standards association asphalt shingle application standard csa a123 51 as follows. Some building codes allow as low as a 2 slope with asphalt shingles if additional steps are taken. The arma s residential manual for asphalt roofing recommends that asphalt shingles on low slope roofs be applied over a nonperforated single layer of adhesive backed bituminous membrane installed to the manufacturer s specifications or over a double layer of asphalt impregnated felt paper.

For a low slope residential roof there are two main options. 2 where the roof is not visible consider upgrading to a single ply roofing intended for low slope roofs. The majority of north american residential roofs have historically been constructed with a slope between about 4 12 and 9 12. 1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many.

If you have a low slope roof but would love to have a shingled look rather than other solutions like rolled sheet roofing you are in. Attach drip edge along the edge of the roof with roofing cement. If you don t place the drip edge properly. A handy roof slope estimator can help you determine if your roof slope is likely too low for shingles.

The usual slope for asphalt shingles is a 4 or greater rise for every horizontal foot of run. Low slope roofing shingles. Cover the entire low sloped roof area with a self adhered modified bituminous membrane that will act as an ice and water. Some will argue that shingles shouldn t be used for low pitch roofs at all.

A 3 per foot slope is considered low but may be acceptable if a double layer of felt is used. To install the flange one shingles to about the level of the pipe then nails the flange on and then continues by putting the shingles over the flange. Extend the front edge of the drip edge so it runs off the roof and into the guttering.