Wet Floor Insulation - Is it damaged

Innishouse

Hi all,
I require some urgent advice on floor insulation.

The radon barrier was put in last week making and the floor insulation was put on top of it, we are using 150mm xtratherm polyiso. Unforunately, and contrary my instruction, this was not covered and then we had a couple of days of crazy rain. Can someone tell my if this damages the insulation and it's effectivness.

As the radon was already in the floor is effectively a swimming pool and I am worried about pouring concrete on top of this now. Will the insulation have soaked up the water and will it need to be replaced.

The heating company are coming tomorrow AM to put in underfloor so if this insulation (3k worth) needs to be replaced I will need to act fast.

muffler

The insulation should be fine but you would need to get rid of all the rainwater before pouring the concrete. Give Xtratherm a ring first thing in the morning and ask to speak to one of their technical reps and take advice from them.




Edited

stephentbb2000

The insulation should be fine but for peace of mind ring kingspan first thing tomorrow.
Customer Services
Tel: ++353 (0) 42 979 5000
Fax: ++353 (0) 42 975 4299
e-mail: commercial.ie@insulation.kingspan.com
Technical Services
Tel: ++353 (0) 42 975 4297
Fax: ++353 (0) 42 975 4299
e-mail: techline.ie@insulation.kingspan.com

Also head to your local tool hire and try and get your hands on a submersible pump to get rid of the pools of water if there is allot.

sinnerboy

..... don't tell them you used xtratherm though

mossysheehan

Innishouse wrote: »

The radon barrier was put in last week making and the floor insulation was put on top of it, we are using 150mm xtratherm polyiso.

Probably better ringing xtratherm... Should be no problem. The concrete will act as a sponge and pull away any water.

stephentbb2000

Ha Ha, yeah my mistake. Maybe ringing Xtratherm would be a better option.
00353 (0) 4690 66000

Innishouse

Thanks for all the helpful responses, they are really putting my mind at ease. I'll call a technical rep in the morning to make sure.

The contractor was telling me it was fine as well but his motivation is to get the job finished. Given the detailing etc I'm insisting on imagine the thought of a fundemental component not working as effectively as it should have.

I think the obsession with air tightness, U value, heating etc is making me paranoid.....

Fix Irl inc

Its fine - I would be more worried about it blowing away on a night like that. Knock out block to get water away if stuck

BERmad

Innishouse wrote: »

Hi all,
I require some urgent advice on floor insulation.

The radon barrier was put in last week making and the floor insulation was put on top of it, we are using 150mm xtratherm polyiso. Unforunately, and contrary my instruction, this was not covered and then we had a couple of days of crazy rain. Can someone tell my if this damages the insulation and it's effectivness.

As the radon was already in the floor is effectively a swimming pool and I am worried about pouring concrete on top of this now. Will the insulation have soaked up the water and will it need to be replaced.

The heating company are coming tomorrow AM to put in underfloor so if this insulation (3k worth) needs to be replaced I will need to act fast.

I would be more woried about the strength of your concrete. If there is a lot of water there it will weaken the strength of your concrete considerably.

sinnerboy

You should not be placing UFH + screed if the building is not watertight .

Tell the builder to , at his own expense , take up and safely store your insulation in a dry place to be replaced only after roof is on , felted + battened and all windows are in .

Your screed should go in only after heavy works are completed - otherwise it's surface WILL be mechanically damaged