Makeitstop Posted March 14, 2022 Author Share Posted March 14, 2022 Hi all, Thought I'd ask on this thread rather than starting fresh...... Does anyone know if a warm roof buildup requires a 300mm upstand over a more standard 150mm? On discussing a job with velux, it appears they suggest 300mm for warm roof, which sounds large. Anyone have any knowledge on this? Link to comment Share on other sites More sharing options...
Beckside Posted March 14, 2022 Share Posted March 14, 2022 Not sure what you mean by a 300mm upstand. I fitted four 3G velux in our warm roof, used the Std flashing kits for a slate roof. Fitted extra insulation around the frames. Been in over a year with no problems. 3G is much quieter than the 2g versions Link to comment Share on other sites More sharing options...
Makeitstop Posted March 14, 2022 Author Share Posted March 14, 2022 53 minutes ago, Beckside said: Not sure what you mean by a 300mm upstand. I fitted four 3G velux in our warm roof, used the Std flashing kits for a slate roof. Fitted extra insulation around the frames. Been in over a year with no problems. 3G is much quieter than the 2g versions Thanks for the response, but this is a flatroof. Still, I'm confused by 300mm for an upstand, but I'd love to hear opinions of others. Link to comment Share on other sites More sharing options...
Makeitstop Posted March 15, 2022 Author Share Posted March 15, 2022 Got this sorted now. Link to comment Share on other sites More sharing options...
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