I have to use flashed-in vents to cope with the low pitch of my roof. You can use the soil pipe lead/rubber weathering slates plus a cowl, but would not look as neat as these:
Cheers, Simon.
I have to use flashed-in vents to cope with the low pitch of my roof. You can use the soil pipe lead/rubber weathering slates plus a cowl, but would not look as neat as these:
Cheers, Simon.
Note: this is my second post about roof venting. I wish to avoid vents in the gable since a boiler flue outlet is to go there and cannot have vents close by due to "the regs". Simon.
The smaller of the area of the (smallest) pipe entry going in to it, or the external rectangular edge length x the height above the slates/ tiles. Less a derating factor if the BCO wants to argue about it, eg
25% extra vents because you're using a non-standard product/method.Owain
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