Hi woody, correct, both sides are needed.
What would be the best option to do that retrospectively?
Read more: https://www.diynot.com/diy/threads/ventilation-for-cold-flat-roof.533378/#ixzz65YNsvK1x
on one side I have guttering, but not the opposing side.
Does over fascia vents work for a flat roof (FibreGlass) ? Does it cost a lot more work to retrofit?
many thanks, Notch7. Is it watertight? will rainwater sip in when strong wind?
I dont understand "Please make sure you have downlighters protruding through into the void", what does that mean?
Read more: https://www.diynot.com/diy/threads/ventilation-for-cold-flat-roof.533378/#ixzz65NSdLH3u
Hi nematoad, did you get anywhere? I'm now faced with the same issue and (obviously) looking for solutions! At the moment I'm considering extending the roof over a box consisting of vented sofits and fascia boards.
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I am facing with the situation in converting part of my new garage into my office. I need to vent the 50mm gap above the ceiling insulation on a cold deck flat roof. I only know that during the last building regulation inspection.
Roof is flat fibreglass so no over fascia vents like you would...