Drainage stacks - avoiding roof penetration
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Whilst this publication can still be purchased some of the information in it has been superseded by more recent research and standards. The BRE Group does not accept any responsibility whatsoever for any loss or damage, including - without limitation - indirect or consequential loss or damage arising from use, or loss of use, of data or profits arising out of, or in connection with, the use of this document.
Failures: Rainwater penetration to inside of roof space.
Defects: Flashing incorrectly dressed, poor vent position in relation to tile/slating module, ill-fitted sarking felt.
Includes Table 1 - Common branch connections of unvented single appliances to the branch stack - Min trap seal depth, Min discharge pipe diameter, Gradient limits, Max distance to stack - For: WCs, washbasins, sinks, baths, showers, washing-machines, dishwashers, waste disposal units.