Then apply standard asphalt shingles over the membrane.
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.
This top layer normally is tar over which the gravel is laid.
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.
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.
Residential low slope roofing can generally be divided up into two broad categories.
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.
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.
Iko roof fast 95 base is a self adhesive product that can easily be cold applied on low slope roofs.
Keep in mind that neither metal shingles not corrugated metal panels are suitable options for low slope or nearly flat roofs.
For a low slope residential roof there are two main options.
Many problems that arise from the installation of a low pitch roof derive from poor installation or lack of maintenance.
This low pitch roof tile gives the appearance of slate without the cost or the high maintenance.
Suitable materials for pitched roofs.
The marley thrutone slate is a perfect example of a low roof pitch option.
Economically priced and available in either blue or black it can be pitched at 15.
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.
The membrane will outlast the shingles and seal around all nail penetrations.
Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.
4 12 to 20 12 pitches.
Clay or cement tiles can be used on a wide range of roof pitches.
What are the challenges of a low pitch roof.
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.