DIY Doctor UK DIY Forums

Hi,

We have a roof with a fairly low pitch, and despite soffitt vents being instaled a while back, are suffering from considerable condensation during the cold snap.

I have had two roofers over to the visit the property, an 1885 brick built semi detached house.

One has recommended the installation of 6 tile vents costing around £425. The second reckons we need around 15 to adequately ventillate the roof at a cost of around £750-£800. There's early evidence of wet rot so we need to move quite quickly now to sort the problem out. There's quite a difference between 6 and 15- is the second one trying it on, or will the first quote prove insufficient? The house is three bedrooms- the neighbours on the other side also seem to get some condensation and already have some vents.

Any help much appreciated.

Tony77

Do you have any water tanks in the loft ? if you do make sure they have lids on - this can often be the cause of a condensation build up in the loft.

As for the loft vents - i'm no expert but 6 vents seems plausible, 15 seems OTT - try posting in roofing section.


htg

Thanks, will do, there's no water tank in there, it appears to be the type of felt that was used to re-do the roof. It apparently is a common cause of sweating.

Will repost in roof.