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.