Supporting a Flat Extension Roof Spanning 4 by 4 Meters
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BigBurd
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Supporting a Flat Extension Roof Spanning 4 by 4 Meters

by BigBurd » Mon Oct 13, 2014 7:25 pm

I am going to build a 4 meter by 4 meter roof over my wooden structure extension. Do I need to support it in the middle or will timber joists support the weight? I am going to put Decra roofing tiles on top and there will be a minimal slope so it will effectively be a flat roof. Is there any guide books on line I can access. Thanks in advance. BigBurd

TheDoctor4
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Re: Supporting a Flat Extension Roof Spanning 4 by 4 Meters

by TheDoctor4 » Mon Mar 09, 2015 2:57 pm

Hi

Have you seen our flat roofing project? If not, this might offer some more help and advice: https://www.diydoctor.org.uk/projects/bu ... t_roof.htm

Kind Regards

michaelbailey
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Re: Supporting a Flat Extension Roof Spanning 4 by 4 Meters

by michaelbailey » Thu May 14, 2015 2:05 pm

web joists 14300mm span £27 each @600mm centres from howarth

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