Marley SolarTile® fact sheet This guidance shows how to ensure you comply Marley SolarTile®1 panels are AA, AB or AC National Class rated Approved Document B from the Building Regulations (England and BROOF (14) European Class rated. and Wales) aims to reduce the risk of the spread of flame between neighbouring properties by regulating where different building materials are used. Interchangeable modules over backing tray A roof tray made from a plastic or metal sheet is laid down over the tile battens. Brackets are fixed through the roof tray onto battens and the solar panels fixed to these brackets. If such a system relies on the solar panel for its fire rating, then the rating only applies with the panel with which it was tested. Additional measures (for example fire proof barriers behind) are required if used with a different solar panel. Roof Integrated solar panels with dedicated flashing kit The solar panel itself forms the weatherproof layer, and sits directly on the tile battens fixed to the roof structure below. A flashing kit joins the edge of the panels to the surrounding roof covering. Tile format solar panels The solar panel is formed in a shape that fits in with the bonding of the tiles on the roof. All three of these formats replace large areas of the conventional roof covering and so fall under the Building Regulations on external spread of flame. EXTRACT FROM APPROVED DOCUMENT B Designation of roof covering Minimum distance from any point on relevant boundary 1 Not acceptable on houses in terraces of three or more houses, or houses larger than 1500m 2 Acceptable if solar panel kit area is smaller than 3m and separated from other solar panel kits by more than 1500mm Marley SolarTile® is Clearline Fusion a Viridian Solar product

A developer wants to install solar panels onto a pair of semi-detached houses, bounded on three sides by other properties and the fourth by a road as shown in the diagram below. The relevant boundaries are with the adjoining properties and the centre line of the road. 1. AA, AB, AC / B ROOF (T4) rated solar panels - the solar panels can be installed anywhere and in any amount of roof covering. The solar panel and roofing kit must be tested and classified using methods described in BS 476-3:2004 or EN13501-5:2016. To perform the test, a roof sample is built up with the solar kit and surrounding...