spacing of talons?

Old 11-14-09, 09:04 AM
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spacing of talons?

I am using 1/2in and 3/4in pex and supporting it using talons.
What is the max. spacing between talons?
I have noticed the the 3/4in pex that I have running down the joist warps a lot when it heats up.
I have the spacing at about every 2ft.
I have also run my 1/2in pex for the radiant heating in the joist space up against the floor. Once again the talons are spaced about every 2ft.
Old 11-15-09, 04:21 AM
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Most manufacturers suggest every two or three feet and put no talons on the return radius. It is not uncommon for some slack to appear when warming up. I believe that is one reason why the plates have become more popular and of course the second would be better temp transfer. If there is a third reason for popularity of plates it would be the insulation can go against the plates instead of leaving an air space between the insulation and the floor/tubing.

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