Celotex Ga4100 Rigid Board for Underfloor Heating

[Markyb250]

Hi all,

So I have some spare GA4100 celotex after using it for between the roof rafters.

I should have enough remaining to provide a 100mm installation floor base and 75mm screed. Is GA4100 safe to use with ufh? Will the compression be too weak or will the foil cause issues? Ideally I would avoid buying more, but don't want problems later on.

Thanks in advance.

 

[Notch7]

GA4100 is a multi purpose board for pitched roofs, flat roofs, walls, floors.

So yes.

 

[Markyb250]

GA4100 is a multi purpose board for pitched roofs, flat roofs, walls, floors.

So yes.

Thanks, as their blurb avoids adding ufh heating in the list of uses, I didn't know if there was a reason or if it was them pushing you toward the ufh range they have.