underfloor or sandwich??

Dave_22

I have a house where I was going to do a underfloor stapleup with heavy duty plates. According to the heatloss- it should be alright. I am also ripping out all the rugs in house and thought about a warmboard type of product. What are the pro's and con's here? I figure even if I go with warmboard- I still have to rip out the basement ceiling and insulate. I would be able to run lower water temps with warmboard, and it would respond faster, but is that worth it? I would assume it would cost a whole lot more. Looking for opinions....... :)

Dave_22

anyone????

joel_19

Dave

> anyone????





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joel_19

Dave

Hi dave . think i can help as we did Climate panel from when it was first introduced. We run RTI plates if we go under the floor. On top is MUCH better. We see similar house that can get away with up to 20f colder water than you can get with plates from bellow. Response time seems quicker to.

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joel_19

Dave

Hi dave . think i can help as we did Climate panel from when it was first introduced mid 90's?? We run RTI plates if we go under the floor. On top is MUCH better. We see similar houses that can get away with up to 20f colder water than you can get with plates from bellow. Response time seems quicker to.

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Dave_22

Yes..

I know that stuff, but I wonder what the cost difference would be and how long it would take to re-coup????

Constantin

A couple of thoughts...

... Warmboard is an excellent product, particularly if you don't mind ripping out several layers of flooring. Tough as nails, heavy, etc, it should serve you well, even if may lead to some heat stripping in extremely cold conditions when the water temps inside the pipes are at their highest.

When it comes to thermal transfer plates, I don't think there is anything better than the beefy Thermofins made by Radiant Engineering.

I would also consider Roth and Rehau panels for above-subfloor installations.

Unknown

DIY or contractor project?

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Weezbo

Are you sold on either or at this momment?

there are other ways to deliver radiant heat....not to throw a Wrench in the works....

Wayco Wayne_2

Yeah on top is better

That's what I always say :P. (ahem....) It heats up faster and can run at lower temps, however it is considerably more expensive and may intrude into threshold changes and other construction based costs. I use the heck out of Wirsbo Joist Trak plates. Them and Thermofin can really juice up the capacity of the floor. WW

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hr

Warmboard

is hard to beat performance wise, but it really is designed as a structural subfloor product. Not sure you would need that much technology for above an exisiting floor??

On top products lend themself to retro fits, fairly expensive designer plywood

Plates can be used from below if you choose or sandwiched above. I lean towards below if their is a good workspace. Above is another good option if you can give up the thickness of the sandwich and flooring needed.

Actually striping goes away with the plywood layer between the plates and final flooring. Tube directly under flooring seems to show more stripping, unless you have the aluminum plates or Warmboard aluminum sheet to spread the heat out.

Plenty of good choices out there, getting hard to weed through all the choices I'm sure they all work when sized to the load, designed, and installed properly.

hot rod

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