How To Tile A Low Pitch Roof

1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many equivalent products.

How to tile a low pitch roof.

Decra tiles have a tile with a minimum pitch of 10 degrees. There are a number of way s in which you can overcome the issue of a low pitch and keep the parish council happy also it would not alter the look at of the building roof. Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle. Stuart nicholson director of roof systems at marley outlines how best to approach the preparation and specification of tiles for low pitch roofs.

For a low slope residential roof there are two main options. Then apply standard asphalt shingles over the membrane. 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. Just like any other roofing system low slope roof designs will have several effects on the overall construction of the building including the interior volume the style and design of the house the drainage system and the material used for covering.

Ratios from that minimum up to 4 12 which are considered low pitch require double underlayment. Conventional roofs are the easiest to construct and you can walk on them safely. 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. Once a tile has been specified for the low pitch roof and the installation instructions have been double checked make sure you adhere to the following.

Clay or cement tiles can be used on a wide range of roof pitches. Redland regent concrete tile forticrete centurion however these have a minimum pitch of 10 5 degrees. Low pitched roofs are generally difficult to maintain and you need special materials to prevent leaks. A low slope roof design typically has a pitch of between 2 12 and 4 12.

The membrane will outlast the shingles and seal around all nail penetrations. Use a smooth tile if possible avoid granular finishes never discharge a gutter rainwater pipe directly onto the roof use fixing clips if specified. They have a pitch ranging from 4 12 to 9 12. For pitches of 2 5 12 up to 4 12 the roof requires double underlayment.

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.