Pitch design down to 17.5°

The design of any slate roof must consider a number of related factors:

• the site's exposure rating

• the pitch of the roof

• the type of slate being used

• the size of the slate

• the size of the lap

Guidance on these components can be found in British Standard BS 5534:2003, The Code of Practice for Slating and Tiling.

Although BS 5534 recommends a minimum pitch of 20°, SSQ has developed a successful slate roofing system that allows the roof's pitch to be reduced to 17.5° generally and under some circumstances, as low as 15° in areas considered to be 'unexposed'.

The SSQ Low-pitch Slate Roofing System uses a combination of special-width slates and hook-fixing techniques and is a result of the knowledge and experience we've accumulated during 25 years working within the slate quarrying and slate roofing industries. The system has been well received and we are delighted to be able to provide reference projects to substantiate its success.