Low pitch roofs can have difficulty draining and may leak.
Low pitch roof tile pitch guide.
To calculate roof pitch take the lowest point of the roof and measure the amount of rise for every 12 inches of horizontal movement toward the highest point.
They can be installed to meet the latest fixing requirements of bs 5534 and the nhbc technical standards.
It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5.
He is also a regular contributor to trade roofing magazines.
Manufactured from 100 recycled materials eco slate is available in grey and old world red.
Down to 17 5 degree pitches at a 120mm headlap.
A low pitched roof is easier to put up and maintain but may show very little of its material at ground level.
For example a roof that rises 3 inches for every 12 inches has a pitch of 3 12.
Traditionally a minimum roof pitch of 20 was recommended in bs 5534 but modern tiles and slates have now been designed for applications as low as 15.
The tiles and slates used for low pitched roofs are very low maintenance and will always come with a manufacturers guarantee for at least a few decades.
This installation guide is for roof pitches of 22 degrees and below at a low pitch some elements of the roof system are working at the limit of their capabilities meaning more chance of failure under extreme weather conditions.
Eco slate is an environmentally friendly man made slate alternative that can be installed on any pitched roof from 10 to 90.
If the tiles are installed in an area where weather conditions aren t too severe and damaged tiles and slates are quickly repaired the roof will pretty much take care of itself.
Low pitch roofs benefit from allowing more rain to run off than flat roofs do however they can still struggle with water building up and weighing the roof down.
How roof pitch determines suitable roofing systems.
Low pitch roof slates.
Flat and nearly flat roofs a pitch of 1 in 12 or 2 in 12 cannot be covered with shingles or shakes of any material since there is not enough angle to combat the danger of blow off.
European roofing tile standards.
This is why it s key to use roof tiles that are good quality lightweight and non porous.
