Divide the first part of the ratio by 12 to work out the pitch.
Roof tiles for 15 degree pitch.
We also provide a number of other low pitch concrete interlocking solutions such as the mendip and wessex tiles each able to perform at pitches of 15 degrees and our new mendip 12 5 can be used at an even lower pitch of 12 5.
Where the minimum pitch for clay pantiles used to be 30 tiles like the redland cathedral pantile can be pitched as low as 22 5.
A 12 12 pitch roof has a pitch angle of 45.
Down to 17 5 degree pitches smooth with a headlap of 100mm.
To convert between american roofing ratios and pitch degrees follow these steps.
Low pitch roof tiles are thought of as those that are suitable for laying on roofs at 20 degrees or less.
All of our products are offered competitive prices.
Eco slate is an environmentally friendly man made slate alternative that can be installed on any pitched roof from 10 to 90.
Granular coated tiles are only suitable for pitches above 17 5.
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.
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.
This low pitch roof tile gives the appearance of slate without the cost or the high maintenance.
After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.
What does minimum roof pitch mean.
Tiles suitable for pitches as shallow as 15.
They can also be used on low pitched roofs such as the sandtoft 20 20 tile which is a highly popular clay option that can be installed on pitches of 15.
Down to 22 5 degree pitches smooth with a headlap of 75mm.
The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need.
Popular applications include extensions where windows or planning restrictions prevent the use of standard roof tiles.
Browse our range of low pitched roof tiles and slates that can be used at a maximum pitch of 15 degrees.
What degree angle is a 12 12 pitch roof.
Minimum roof pitch is the lowest angle at which a roof can be designed so the roof covering remains watertight.
Low pitch roof slates.
Manufactured from 100 recycled materials eco slate is available in grey and old world red.