How To Tile A Low Pitch Roof

Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.

How to tile a low pitch roof.

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. The membrane will outlast the shingles and seal around all nail penetrations. Low pitched roofs are generally difficult to maintain and you need special materials to prevent leaks.

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. 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. A low slope roof design typically has a pitch of between 2 12 and 4 12. Use a smooth tile if possible avoid granular finishes never discharge a gutter rainwater pipe directly onto the roof use fixing clips if specified.

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. Conventional roofs are the easiest to construct and you can walk on them safely. For a low slope residential roof there are two main options.

These roofs have a pitch less than 4 12. These linings are applied starting at and parallel to the eaves in 36 inch wide strips with a 19 inch overlap for successive sheets. Stuart nicholson director of roof systems at marley outlines how best to approach the preparation and specification of tiles for low pitch roofs. Redland regent concrete tile forticrete centurion however these have a minimum pitch of 10 5 degrees.

Then apply standard asphalt shingles over the membrane. 1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many equivalent products. They have a pitch ranging from 4 12 to 9 12. Decra tiles have a tile with a minimum pitch of 10 degrees.

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.