Minimum Pitch For Tiled Roof Uk

All tiles and slates have a minimum roof pitch which is set out in order to protect the roof from water penetration.

Minimum pitch for tiled roof uk.

Pitch roof this is where tiles or slates are used and a void is usually created underneath. But the most commonly used pitches range between 4 12 and 9 12. 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. Deciding on the correct roof pitch for your home very much depends on the style of house you are building or renovating and to a lesser extent your local area.

Clay single camber plain tiles can pitch down to 30 manufacturer dependant although the vast majority available have a limit of 35. You write the pitch assuming a run of 12 inches thus the ratio would describe how much a roof rises for each foot of the run. Clay tiles are colorfast which means their tints improve rather than fade over time. Flat roof this usually consists of felting which has a slight fall to allow rain water to drain off.

How do you calculate the slope of a roof. 35 is considered to be the minimum for slate and clay but if you do need to go below this interlocking concrete tiles are the best option. Concrete is long lasting with a minimum lifespan of 50 years depending on climate. The minimum pitch for each product can be found in the table below and in the product brochure or within the products pages some tiles and slates incorporate design features allowing them to be laid at a low minimum pitch.

The irc recommends a minimum pitch of 2 5 12 for these materials. To enable compliance with the requirements of the building regulations to be demonstrated full details of the new roof will be needed including. Choosing the right pitch. Both clay and concrete tile are available in many colors and are naturally weather resistant.

The ondutile system manufactured by onduline building products ltd allows plain double lap tiles to be laid to roof pitches as low as 22 5 and is covered by british board of agrement certification details are available from the onduline website https onduline co uk products ondutile. As aforementioned there is no standard pitch of a roof. In most instances 35 will be the minimum pitch for plain concrete tiles which is another reason why the material is the preferred choice for those who use them regularly. 11 august 2015 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.