French doors over air bricks

maybe_tomorrow_2

I have had a quote to install french windows into my yard where there is currently a large window. Beneath the window there are two air bricks/vents serving the subfloor of the living room.

I am concerned because to instal the doors the airbricks will have to be removed however there is nowhere else on the wall (Typicaly L-Shaped yard) for them to be moved to therefore I will lose 2 air bricks.

Its an end terraced and still has 2 air bricks on the gable wall of the same room.

Is this something to be concerned over, losing 2 bricks?

Are there any other rmethods of getting airflow into sub-floor?

Thanks

aeb_2

I had a similar situation. When I had a conservatory built on they ran 2 x(approx 5 or 6") pipes under it and put grills at the front of the conservatory - they look a bit like two drains. They have a little 'frame' around to stop water/leaves going in.

maybe_tomorrow_2

Thanks,

Unfortunately there isnt enough room on either side of the window frame to place air bricks, its quite narrow. There is a step in levels between internal and external so a step will be required. Could i put in a narrower e.g. 1 brick course high for example built into the step? It would be very close to ground level though and would pose a risk for water inflow, levels outside arent great as it is.

thebaldwindowfitter

maybe_tomorrow wrote: »

I have had a quote to install french windows into my yard where there is currently a large window. Beneath the window there are two air bricks/vents serving the subfloor of the living room.

I am concerned because to instal the doors the airbricks will have to be removed however there is nowhere else on the wall (Typicaly L-Shaped yard) for them to be moved to therefore I will lose 2 air bricks.

Its an end terraced and still has 2 air bricks on the gable wall of the same room.

Is this something to be concerned over, losing 2 bricks?

Are there any other rmethods of getting airflow into sub-floor?

Thanks

surely the air bricks would be below the cill of the french doors if they are venting the subfloor . we have done many installs like this and the air brick have remained .Are the airbricks single brick height or 2 brick height(sometimes used to vent cavity and subfloor) if they are double these could be replaced for single brick height vents

cyclonebri1

It's simple, they are brain dead.

Yes they may have to remove the airbricks, but I don't understand why, if they are in the correct location

The vents go a course or so lower, don't reduce the cross flow of air through/under your house.:money::money:

teneighty

Extending the old air vents through the new step to 2no. new 9x3 inch air bricks sounds like a reasonable compromise.

Failing that how about forming the new step with a raised timber deck so the old air bricks are not blocked? That would also prevent the new step bridging the damp proof course.

cyclonebri1

The last one I did, we built the step so it was 3" clear of the house, the slabs then over hung the brickwork, (1" gap for rain water etc).

Leaves a circulation gap than you can clear with a rake if it gets clogged with leaves/debris.;)