Help with xps insulation

[jasonperry]

Hi all!,

 

I'm new to buildhub and hoping someone can help or point me in the right direction!

I'm in the process of installing a floor. It's a block and beam floor. I'm now at the point of installing the xps insulation over the top before ufh (water) and a screed.

The insulation I have received is danosa danopren xps pr-p. Their website states this is for the wall with a compressive strength of  ≥ 200  kPa . They make a floor insulation with a compressive strength of   ≥ 300  kPa. I have looked at Celotex insulation as a reference who state their insulation is 140-150 kPa. 

I will be installing rebar mesh on top of the insulation to hold the ufh pipes down. 

Does anyone know if this will be ok?

I have already done this to another floor before I realised! I'm not going to dig it up unless something happens but would like to know for sure with this next floor.

Many thanks in advance.

Jason

 

 

 

[PeterW]

200kPa is equivalent to 20 tonnes per square metre. 150mm of concrete weighs 345kg…

 

Think you’ll be fine ..!

[Russell griffiths]

Normal floor eps is only 70kpa, so yours is fine. 

[Thorfun]

3 hours ago, jasonperry said:

I will be installing rebar mesh on top of the insulation to hold the ufh pipes down. 

is this really necessary? seems excessive when you can just get ufh pipe staples to hold the pipes down.

 

maybe someone who knows what they're talking about will be along soon to correct me. ?‍♂️

[joe90]

4 minutes ago, Thorfun said:

is this really necessary? seems excessive when you can just get ufh pipe staples to hold the pipes down.

 

maybe someone who knows what they're talking about will be along soon to correct me. ?‍♂️

Mine was just stapled to the insulation with 70mm flow screed above, no mesh.

[Thorfun]

1 minute ago, joe90 said:

Mine was just stapled to the insulation with 70mm flow screed above, no mesh.

exactly how I plan to do mine!

[jasonperry]

I don't think I can get flow screed here! I'm in central Portugal. But thank you all for the quick response. Back to the build now for me!