Approved Document Guttering

Specialist guttering companies can offer you advice on how to make sure your guttering meets building regulations.

Approved document guttering.

The building regulations for guttering also apply to soffits and fascia boards. Approved document h of the uk building regulations sets out the guidelines needed for the construction of foul water drainage and rainwater or surface water drainage systems. For eaves gutters the rainfall intensity is provided in a map of england wales shown in diagram 1 of section h3 of approved document h. It also sets out the rules for wastewater treatment systems cesspools and tanks and also how solid waste should be stored.

It is worth noting that 75mm hour is equivalent to 0 021l s sqm. The l s sqm figures range from 0 016 to 0 022. Approved document h offers guidance on drainage including foul and surface water and rainwater and sanitary waste disposal including sewage structures and their upkeep. Bs en 12056 3 and the building regulations approved document part h contain relevant design information to enable rainfall calculations to be undertaken and give design principles for gutters and downpipes.

Internal gutters linking internal outlet positions should be at least 500mm wide. This also includes the design and construction of sanitary pipework for waste removal from the likes of baths sinks basins and toilets. They are set out in the government s approved document h which can be found here. Approved document h requires that paved areas slope away from the building for at least 500mm to divert surface water away from the wall.