Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically from steep slope to low slope on the same structure.
Low pitch roof covering options.
Made of several layers of bitumen surfaces built up roofing is finished by applying an aggregate layer or coating as the top layer.
Residential low slope roofing can generally be divided up into two broad categories.
The marley thrutone slate is a perfect example of a low roof pitch option.
Many problems that arise from the installation of a low pitch roof derive from poor installation or lack of maintenance.
Built up roofing is the most popular roofing material used on low sloped roofs.
For pitches of 2 5 12 up to 4 12 the roof requires double underlayment.
Pitched roofs begin with with slopes greater than 3 in 12.
1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many equivalent products.
What are the challenges of a low pitch roof.
Suitable materials for pitched roofs.
Clay or cement tiles can be used on a wide range of roof pitches.
Low pitch roof slates eco slate is an environmentally friendly man made slate alternative that can be installed on any pitched roof from 10 to 90.
Economically priced and available in either blue or black it can be pitched at 15.
Keep in mind that neither metal shingles not corrugated metal panels are suitable options for low slope or nearly flat roofs.
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.
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.
Then apply standard asphalt shingles over the membrane.
Iko roof fast 95 base is a self adhesive product that can easily be cold applied on low slope roofs.
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.
For a low slope residential roof there are two main options.
A minimum pitch of 3 in 12 or even 4 in 12 will normally be required.
This top layer normally is tar over which the gravel is laid.
The membrane will outlast the shingles and seal around all nail penetrations.