Porch Floor Help

[Paul348]

I am after a bit of advice, I have a porch which Is built out of 9” brick wall with no cavity.

I have studded the walls on the inside and filled with 90mm Celotex. There is a UPVC door that leads to the outside (will be changed) and a Timber door that will lead into the hallway. All the ground floor of the house has wet under floor heating, and will be tiled with porcelain tiles.

My problem is the porch floor is some 60mm lower than the hallway and I would like to raise this to the same level as the hall and carry the tiles all the way though.

The existing floor in the porch is quarry tiles that are in sound crack free condition but doubt there is a DPM present.

I would like to install DPM into the floor and if possible insulation, but not sure how to go about doing this??

Can anyone advise what would be best.
Thanks

Untitled

• Paul348
• 8 Mar 2011
• 1

Untitled

• Paul348
• 8 Mar 2011
• 1

Untitled

• Paul348
• 8 Mar 2011
• 1

 

[DAZB]

I would say that unless you actually have a problem now with the lack of a DPM then it is unlikely to suddenly become a problem especially as you have significantly increased the average temperature of the walls and the floor is sound. With this in mind I would favour laying Kingspan to the floor in one piece and a floating layer of chipboard to cover with a skirting to the perimeter fixed to your studwork. Take into account the depth of your new floor tiles inc. adhesive etc plus 18mm or 22mm moisture resistant chipboard to calculate the depth of Kingspan you can use.