Insulation Walls Under Liner

[mattk22]

I am buying a 27' AGP, my dealer sent me a link with all kinds of options, I saw one for the Thermo-Wall insulation that goes between the liner and the pool wall. I immediately disregarded it as worthless. The more I thought about it the more it sounded like it may work some to insulate the walls when the air temps dip at night. Do you think it would actually work or not worth it at all? I am still leaning towards no, but wanted to get all of your thoughts.

It is basically foil on one side with air bubbles in it. I have seen stuff like it before at the hardware store.

 

[E9A]

No experience on Thermo-wall in particular, however keep in mind that any forgiving material between the liner and pool wall will increase the risk of liner punctures. I've seen IG pools with wall foam that do look and feel nice, but I've also seen a good amount of liners with punctures for various reasons. (Dogs, kids pushing off from wall with long toenails, etc.) not sure if this is as big of an issue with an AG, but something to consider.

Any actual numbers on heat retention, r-value, or the like for this product?

 

[mattk22]

i can't find any R-value ratings on them. they say it will increase the r-value of your pool, but so would a sheet of paper to some extent. The lack of substantiated info is what has me the most skeptical.

 

[pwrstrk]

A lot of people that have the wall foam say if they had to do it again they would not get it. I don't have it. Best thing you can do to prevent heat loss at. night is to get a solar cover

I also agree with more risk of a puncture to the liner.

 

[Maurino17]

I am new to this and so pleased to find so many threads with this debate! wall foam or no wall foam.
I am still not sure which way I will go though.

 

[Poolzzz]

It is basically foil on one side with air bubbles in it. I have seen stuff like it before at the hardware store.

Will there be an air gap been the liner and the material? That material is a radiant barrier and requires a dead air space on one side to do anything. In that scenario it reflects radiant energy and has some limited value. However it has little to no conductive thermal resistance (ie R value) so if directly touching the wall and liner then it's basically useless.

 

[DaneCE]

thread from the dead. I liked my 1/8" wall foam so much that I added a second layer. call me crazy. I don't see the puncture hazard as an issue after 6 years with the one layer.

 

[Maurino17]

What at do you like about it? I was envisioning softer walls when the kids are kicking off them, like foam under a laminate floor. What is it people are referring to that they like?

thread from the dead. I liked my 1/8" wall foam so much that I added a second layer. call me crazy. I don't see the puncture hazard as an issue after 6 years with the one layer.

 

[DaneCE]

It's really just a comfort thing. The walls will be cushioned if that matters. I paid $51 for a 100' x 48" roll, the current price is $57 on Amazon. You may not need that much. Also factor in the adhesive cost.

Amazon.com : Blue Wave NL1973 Gorilla Guard Above Ground Closed Cell Pool Wall Foam, 1/8 Outdoor

I used it to also help hide an extra layer of sheet metal that I installed that was 24" high so I had a lap edge mid way up the wall that I was trying to smooth out.

 

[Chewbubba]

I used those blue 1" foam insulating boards and just taped them together with gorilla tape. The only issue I've had is over the last few years is the tape has stretched and made little valleys in the bottom. It's like a wrinkle. In reverse. Definitely no punctures. Does NOTHING for the temp of the pool either.