I want to pour an 1-1/2″ of 4000 psi concrete mixture
(pearock aggregrate) over a 3/4″ T&G plywood subfloor. The 1-1/2″ thick
concrete floor will contain the hydronic radiant tubing used in
conjunction with a geothermal system. The floor trusses have been engineered and
spaced to carry this load. My question is – what type of a membrane (30#
felt) would be recommended as a barrier between the concrete and the
plywood subfloor?
Thanks — BuildrBob
Discussion Forum
Discussion Forum
Up Next
Video Shorts
Featured Story
The crew discusses finding rot when remodeling, challenges installing custom shower panels, and how to prevent subs and suppliers from sabotaging builds.
Featured Video
Highlights
"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.
Fine Homebuilding Magazine
Fine Home Building
Follow
-
Fine Homebuilding
Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.
Start Free Trial Now -
GBA Prime
Get instant access to the latest developments in green building, research, and reports from the field.
Start Free Trial Now
Replies
Gypcrete
Thanks for the help
30# felt and gypcrete...
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming
WOW!!! What a Ride!
Forget the primal scream, just ROAR!!!