House floor vent issue

[tractorboy99]

This may not be the correct location for this question, but here goes

I have venting bricks to vent one of more rooms of my house, but I'd like to build a patio, which itself would be above those air bricks.

How do I maintain the venting to the house?

 

[Burnerman]

Its not a good idea to construct anything that is above air brick level as its also likely to be above DPC....and there will be damp for sure afterwards.
John

 

[tractorboy99]

Our air bricks are below the dpc level, not sure if that cahnges your view?

 

[freddiemercurystwin]

What is imperative is that the finished patio is below the dpc.

 

[Burnerman]

As above - but do consider rain splashes as well!
I have seen air bricks ducted to the outside using plastic drain, but this was over a smallish area (steps up to a patio door).
John

 

[tractorboy99]

The patio would be just below the dpc, but above the floor vents, they key it to try to maintain a similar level inside and out.

I was trying to understand the implications, whish I think I am, and as such can now better consider my options.

many thanks for the comments, they have helped.

 

[freddiemercurystwin]

I recall seeing an approach to this, looked quite a neat solution albeit it had the potential to allow water to flow into the vent , I took a photo so will have a look for it later.

 

[r896neo]

The key is the 150mm below dpc.

There are plenty of work arounds to help solve air flow to air bricks but compromising your DPC clearance can lead to lots of hard to rectify problems.

 

[freddiemercurystwin]

Untitled

• freddiemercurystwin
• 14 Nov 2013
• 1