According to bs 6229 bs 8217 flat roofs should be designed with minimum falls of 1 40 to ensure a finished fall of 1 80 can be achieved allowing for any inaccuracies in the construction.
Flat roof gully.
Never use tile to fill low spots in flat roofs.
Comprehensive range of sizes available for water tight jointing to 82 110 or 160mm pvcu pipe work.
Drainage superstore is proud to offer a superior range of roof drainage products from leading experts aco.
Flat roof drainage compatible with most flat roofing materials including bituminous felt and pvcu roof membranes unique pre drilled flange for secure anchorage.
Flat roof outlets can be purchased in many materials so as you can pick the most appropriate product for your application.
Our range of products will suit any project no matter what the size or scope.
Flat roof drainage falls into 2 main categories gravity drainage and syphonic drainage.
Flat roof design guide.
At roofing superstore our choice of flat roof materials includes everything you need to create a long lasting weather proof flat roof that performs and looks good too.
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Also available to enhance the performance of your flat roof drainage are gravel.
Choose between cast aluminium rainwater flat roof outlets pvc rainwater outlets stainless steel roof outlets and more.
Our gulley outlets are available in two sizes.
Tile is designed for sloping roofs and will not adequately move water from the problem spot.
Rainfall onto flat roofs needs to be correctly managed to protect the structure against ingress of water.
This applies to general roof areas along with any internal gutters.
Other roof outlets include stainless steel rainwater outlets cast iron rainwater outlets flat roof drainage outlet solutions and brand specific aco roof outlets and caro roof outlets.
The appearance of puddles on the roof could also be caused by drainage problems so make sure outlets are cleared and drainage systems are functional.
When using roof rainwater outlets adding leaf and gravel guards is a great way to prevent blockages building up over time.
The caroflow gulley outlet spigot is available in either lm6 aluminium silicon casting alloy to bs en 1706 2010 for most roof finishes or in leaded gunmetal to bs en 1982 2008 for use with lead or copper clad roofs or for connection to copper pipework.