[Greenbuilding] [BULK] Re: PEX tubing

[Leslie Moyer]

Lawrence Lile wrote:
>> >> the expansion and contraction of the pex could crack the slab.
>>
>> > Have you actually observed PEX cracking slabs?  

I have no first-hand experience with it, but a friend (who made this 
mistake) told me that you're supposed to pressurize it prior to pouring 
the slab, thus preventing the concrete from compressing the PEX and, 
presumably, also taking care of whatever expansion of the PEX that might 
occur.

--Leslie