vent tiles for ventilation - how many do i need

allan673

hi, ive got condensation trouble in the loft "another post"
i may need vent tiles fitting in the roof, but how many would i need to fit please? do they go on both sides of the roof, how high up etc?
its a 3 bed detatched, about 8 metres x 5 metres.
many thanks in advance

ormus

http://www.marleyeternit.co.uk/products/products/AccessoryDetails.aspx?pcat=1&pcatname=Tiles+%26+Slates&acctype=Ventilation&arange=2&arangename=+Ridge+Ventilation+Systems&accid=7&accname=Universal+RidgeFast+System

why not consider a complete ventilated ridge system?

allan673

bet its too expensive to install

996ducati

I used airbricks in each gable to create a crossflow.

http://www.screwfix.com/prods/13873/Building/Building-Ventilation/Air-Brick-Terracotta

Regards

keystone

996ducati wrote: »

I used airbricks in each gable to create a crossflow.

http://www.screwfix.com/prods/13873/Building/Building-Ventilation/Air-Brick-Terracotta

Regards

What if he hasn't got two or even one gable end?

Cheers

allan673

i have gable ends, will 2 airbricks do the same job as 4 vent tiles??

keystone

allan673 wrote: »

i have gable ends, will 2 airbricks do the same job as 4 vent tiles??

Probably. You could, of course just remove whatever it is that is restricting the eaves ventilation that the house was built with.

Cheers

allan673

there is nothing restricting ventilation, ive left a 2 inch cap where new insulation buts upto the eves?
ive noticed some houses just have 2 roof tile vents on one side of the roof, and others have 2 roof vents on each side.
i may go for 4 roof tile vents,i.e 2 on each side of the roof, ive priced them at £30 each, and i will get 20% discount on them through my employer.

dampdaveski

Hi allen,
Whilst I'm not a roofing contractor, we fit or recommend tile vents on a regular basis.
If it's easier put a9" x 6" air brick in each gable wall, these could be approx 500mm above the top of your ceiling joists.
If the ventilation is still inadequate (ie you still have condensation in there) consider 2 tile vents in each elevation approx half way up.
another trick we use when installing condensation control units (for internal ventilation) is to get some bits of timber app 25mm x 50mm (doesn't need to be exact) and place them where your underfelt overlaps, this will increase your loft ventilation without the cost of fitting tile vents.
Hope this is of use and makes sense
Good Luck
DD

996ducati

keystone wrote: »

What if he hasn't got two or even one gable end?

Cheers

Nice try!! :T

The original post says....."I live in a 3 bed detatched house"

keystone

996ducati wrote: »

Nice try!! :T

The original post says....."I live in a 3 bed detatched house"

Yes but detached or not if it had a hipped roof it wouldn't have gable ends at all - n'est pas?

Like this


for a semi but but both ends the same for a detached.

Your round methinks. :beer:

Cheers