Westminster Slate, from Redland has been used on a four-bedroomed house on a plot at Christchurch in Wisbech, Cambridgeshire.

A large format interlocking clay tile, the Westminster Slate has a hidden cut-back interlock and a finely tapered leading edge that makes it appear exceptionally slim.  It’s raised nail holes and custom-engineered head enables it to be installed on roofs with pitches as low as 17.5^o. Available in three classic colours – City Black, Cardinal Red and Old College Red –  the tiles can be laid on a variety of roof configurations. Hips and ridges are available in both Half-Round and Universal Angle, and in permutations to allow either a colour-matched roof or the contrast typically favoured on slate roofs. Valleys are detailed using Redland’s Dry Valley or 125 GRP Valley; while ventilation is afforded by the high-performance 8.8k ThruVent Tile. Overall dimensions of the slate are 480 x 326mm, with a cover width of 280mm and headlap range between 110mm and 140mm. Only 10 tiles are needed per square metre, rather than 60 traditional clay plain tiles.

The Westminster Slate offers the opportunity to roof and re-roof relatively inexpensively – and in clay rather than concrete like the Redland 49