I am near the point of starting my new house and am going the RFH route to heat.
The flooring will be 3/4 inch ply over I beams. The ply will be screwed and glued.
QUESTION
Is there a problem using regular construction adhesive in this application? Itwould have to stand up to years of up to 140 degree heat and very dry conditions.
Will it break down over time?
Is there “special” glue for this situation.
I have been unable to find any mention of this possible problem in past treads or other internet sites.
Thanks in advance
Ken_INNC
Replies
I would point out that dark exterior siding gets to 140F all the time in the sunbelt. Sometimes even higher. So adhesive recommended for that application would a possibility.
140F is pretty hot for RFH. maybe not for the water in a staple-up application but for the plywood to get that hot would imply very insulative floor coverings or such a leaky/uninsulated house that a lot of BTU needed to be put out.
Dave
Yes I am sure some situations the temp would get that high but not normally in a floor. When you consider the critical nature of the adhesive holding the ply/beam structure together I thought it was a reasonable question to ask.
As you probably know 120o is more in line with RFH situations so I added 20 degrees on the question.
Thanks for the response
Ken_INNC