Insect proofing air bricks below floorboards

Hajj · 6 Sep 2011

Hello. I have a number of airbricks in my house to ventilate under the suspended wooden flooring. How would you recommend insect proofing them? I thought of taking up the floor boards and then nailing gauze accross the airvent (on the house side). This job would be a bit trick: the need the take the floorboards up and then reach to hammer some nails etc.

I know there are modern insect-proof air bricks but they do not really go with the look of the house. Any other suggestions? There must be an easiery way than taking the bricks out and working from the outside.

Thanks,

Hajj

freddiemercurystwin · 6 Sep 2011

Have you historically had problems with insects entering the property via the air bricks?

Blagard · 6 Sep 2011

Hajj,

Fitting gauze directly over or immediately behind will reduce the capacity of air flowing through the airbrick. I would not be inclined to do that.

If there is a genuine reason for trying to do it, you need to think about how you will maintain the same area of ventilation.

Hajj · 10 Sep 2011

There's no specific problem but would like to put carpet down so it is now or never.

Have add some insects eating the tree outside so it made me wary...not to metion the hysterics with the Mrs when a spider visits!
See //www.diynot.com/forums/viewtopic.php?t=289236&highlight=

Didn't think ventalation would be such a problem. Floorboards are 100 yrs old (apart from a few placements) so they have done a lot of breathing. For 50 sq. m of floor we have seven 9"x3" air bricks

flameport · 10 Sep 2011

Hajj said:
taking up the floor boards and then nailing gauze accross the airvent (on the house side)

If you did that, how would you clean the gauze when it becomes clogged with dust and dirt after a few weeks?

You don't need to do anything - if a few insects get in there, so what? They will get in the house anyway - unless your house is a totally sealed airtight box and you never open any doors or windows.

geraint · 11 Sep 2011

Blagard said:
Hajj,

Fitting gauze directly over or immediately behind will reduce the capacity of air flowing through the airbrick. I would not be inclined to do that.

If there is a genuine reason for trying to do it, you need to think about how you will maintain the same area of ventilation.

Does it really matter...

Some ventilation is better than none....

And also depends on the floor that is being vented...

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Insect proofing air bricks below floorboards

Hajj

freddiemercurystwin

Blagard

Hajj

flameport

geraint

DIYnot Local

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