Eaves vent for loft insulation

[Keith Thomson]

I recently bought a load of new loft insulation to replace the very poor existing stuff. I realise that in the eaves I need to leave a gap between the top of the insulation and the roof to allow ventilation. Ive been looking for ways to achieve this.....

Screwfix have this product

seems ideal, however I need to check if they actually do a 400mm version, rather than a 600mm as the comment suggests. There are 20 units in that pack which is around the amount I will need. Presumably, in a few of the runs I could block the ventilation to save buying 2 packs (40 units) when i might only need 22?

I cant find a similar product in any of the other usual diy stores so if screwfix only have 600mm version, im not sure what to do...

I was wondering if anybody has any other ideas for solving this problem?

cheers

[Kipper at sea]

correct vent suppresser, you want the roll out one. Unfortunately to fit both types you have to take off the tiles, lath's and the underlay, as the vent fits on top of the rafters. Normally all you have to do is just make sure the insulation is not pushed up to the roof underlay.

[Peter Scott]

Another option is to put air bricks into a gable end if there is one. It is easier to ensure a clear air flow. I have two 9 by 9 inch bricks in one end. That cured the fluffy fungus that had started to grow due to poor ventilation.

Peter Scott

[Keith Thomson]

I found this pdf which seems to show the installation for the screwfix one - it doesnt appear to need any complicated stuff......

PDF :

going to go up in the loft soon and try and measure exactly how close the roof is to the room ceiling edge. It just seemed that there could be a thin strip of unisulated loft above the ceiling at the window edge.

cheers

[Keith Thomson]

I should have pointed out in the original message that its a mid terrace.

Thanks anyway!

[Rod]

So is there another term for a terrace in which the houses are stepped such that some have a bit of gable end? (I can see a pair of such house from the nearest window.) :-)

[sm_jamieson]

Link detached ;-) Simon.

[<me9]

I had to put an airbrick in the gable of a lean to extension to comply with BR. The first winter the ceiling was ruined by snow blowing in. It has been blocked up ever since.

[Hugo Nebula]

On Tue, 20 Jan 2009 13:23:52 GMT, a certain chimpanzee, randomly hit the keyboard and produced:

Then it didn't comply with the requirements in the first place. Walls and roofs should be constructed so as to protect the building from the harmful effects of precipitation.

[<me9]

That was what the inspector at the time suggested and passed off a little over 20 years ago.

[Owain]

That was before global warming, though :-)

Owain