Eco Slate FAQ

Eco Slate is made from 95% recycled plastic and a small amount of naturally occurring additives. Eco Slate is the only man made slate manufactured in the UK that is both recycled and recyclable.

Eco Slates are extremely lightweight in comparison with most other options. On average, a square metre will weigh less than 12kg.

Depending on pitch the number of slates you will need will vary from 16 to 19 slates per square metre, however for all normal situations the installation procedure is the same

Wind is not a problem. Eco Slate is tested to BS 5534 : 2014 on a board roof for its resistance to uniformly distributed loads, in other words, the wind and snow likely to be encountered – see BBA Certificate section 6.2. The slate has also been independently tested for wind speeds up to 110mph with no water infiltration or discernible damage or distortion.

Relevant size 15mm length and 5mm head, stainless steel or hot-dipped galvanised nails are recommended.

Over the 50 year warranty expect a variable colour change; however the UV inhibitors ensure they are extremely fade resistant.

Eco Slate is made from recycled material so some modest variation in colour is possible between batches, we recommend that boxes of slates are mixed on site and slates selected randomly for installation. Please ensure you order enough slates – we always recommend that the entire quantity of slates for each roof is ordered at the same time.

No, Eco Slate is flexible so can be used for all the hip and ridge areas.

No, Eco Slates have built-in UV inhibitors to protect against harmful UV rays.

Yes, we recommend using a breathable membrane. For an AA fire rated roof, please see the Eco Slate BBA Certificate section 7.1.

Yes, a Stanley knife blade or any other cutting equipment will cut the slate.

The slates are packaged in boxes of 16.

We recommend indoor storage, as the slates are packaged in cardboard boxes.

You will need an eaves tray and verge trim to support Eco Slate, for ventilated ridges and hips a ‘dry’ system may be required.

Class ‘A’ fire rating

No, the slates have been given a class 4 impact rating.

No, the slates are solid and not hollow, so the noise is kept at a minimum.

16 slates on average per square metre for a pitch of 20 to 45 degrees. 7 slates per linear metre for ridges and hips. 3 slates per linear metre for verges.

Roof pitches between 15-20 degrees require on average 17 slates per square metre.Roof pitches between 10-15 degrees require on average 19 slates per square metre.Please contact Ecoroofing if you require further information.

The slates have a 50-year non-prorated warranty from the manufacturer which covers all roof pitches between 10 and 45 degrees when installed according to the manufacturers instructions.