Made of several layers of bitumen surfaces built up roofing is finished by applying an aggregate layer or coating as the top layer.
Low pitch roof covering options.
But the taller profiles like standing seam and pbr shown below can be installed on roofs with as low as 1 4 or 1 2 in 12 pitch.
Their fasteners are either concealed or screwed at the top of a ridge which makes them less likely to leak.
It s constructed of a durable reinforcing mat of non woven glass fibers that have been coated and permeated to a thickness of approximately 2 0 mm.
But in some climates such as areas of deep snow cover the property owner may prefer to convert to a more steeply sloped roof structure a procedure we describe at low slope roof conversion 3 4 5.
This top layer normally is tar over which the gravel is laid.
Built up roofing is the most popular roofing material used on low sloped roofs.
Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.
1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many.
For pitches of 2 5 12 up to 4 12 the roof requires double underlayment.
For the smaller residential low slope roofing applications such as garage and porch transitions certainteed offers an excellent solution in our flintlastic sa self adhering sbs modified bitumen roofing system.
Low slope metal roofs have been a preferred roof covering for commercial institutional and industrial buildings for years because of their ability to protect against the elements to allow water to drain away from the roof surface and to keep building contents and occupants dry and comfortable.
2 where the roof is not visible consider upgrading to a single ply roofing intended for low slope roofs.
For a roof recover that is keeping the low slope structure a roofer may add tapered insulation and then a new roof covering of epdm or other roofing material.
4 12 to 20 12 pitches.
For a low slope residential roof there are two main options.