December 3, 20241 yr HI We're going to be building a pool and I was wondering if it doesn't make sense to use isoboard/foam on the floor and walls to help insulate it and keep it warmer for longer. See here https://isoboard.com/insulation/cavity-wall/ Surely this will help keep the heat in the pool? Does anyone have any experience on this?
December 3, 20241 yr Get a solar blanket. But it won't last. A swimming pool is actually quite a hostile environment. I don't KNOW but I can't see foam lasting. The chemicals in the water will do for it, if the Kreepy Krawly doesn't rip chunks out. The pool will lose more heat upwards than through the sides. Edited December 3, 20241 yr by Bobster.
December 3, 20241 yr The answer depends on whether the water in the pool is in fact warmer than the surrounding soil. If your pool is heated (with say a heat pump) then the water will be warm relative to the surrounding soil and the isoboard will slow down the dissipation of heat into the soil. If, on the other hand, the pool is not heated it is very likely to be colder than the surrounding soil (due to evaporative cooling, the magnitude of which will depend mainly on RH and wind). In that case the isoboard will slow down the heating of the pool water from the surrounding soil.
December 3, 20241 yr Hang on! I think you're talking about embedding it within the walls, or between the soil and a fibreglass shell. So see Calvin's reply.
December 4, 20241 yr 16 hours ago, AlexanderR said: HI We're going to be building a pool and I was wondering if it doesn't make sense to use isoboard/foam on the floor and walls to help insulate it and keep it warmer for longer. See here https://isoboard.com/insulation/cavity-wall/ Surely this will help keep the heat in the pool? Does anyone have any experience on this? I doubt it will make much of a difference. The vast majority of heat loss in a swimming pool is through evaporation at the surface. I good pool blanket that stops evaporation will be your best bet. However I have never tried pool wall insulation, but I have experimented with pool blankets which make a massive difference (5 degrees C hotter or more)
December 4, 20241 yr Author We'll definitely use a pool blanket. The pool will also be hotter than the outside soil! I was thinking of placing it in the pool wall that supports the sides/fibreglass!
December 4, 20241 yr 1 hour ago, AlexanderR said: We'll definitely use a pool blanket. The pool will also be hotter than the outside soil! I was thinking of placing it in the pool wall that supports the sides/fibreglass! I would put the insulation in, will save you a lot of heat transfer into the surrounding ground.
December 4, 20241 yr Am a firm believer in Isoboard, when we renovated our house we changed all the ceilings to Isoboard and the stuff is amazing,
December 4, 20241 yr 18 minutes ago, Sc00bs said: Am a firm believer in Isoboard, when we renovated our house we changed all the ceilings to Isoboard and the stuff is amazing, I agree with you, great stuff. I have used it in-wall, under slab and for ceilings. My only gripe is with the ceilings: it can be very noisy. A moth or even a fly flapping against it makes a lot more noise than traditional gypsum ceilings. I am actually considering putting in a noise insulation layer below the isoboard in the bedrooms.
December 4, 20241 yr I just wonder if the isoboard will degrade over time which might cause issues. I don't think those boards are designed to be buried in between fiberglass and soil.
December 4, 20241 yr 6 hours ago, HendrikBigChief said: I just wonder if the isoboard will degrade over time which might cause issues. I don't think those boards are designed to be buried in between fiberglass and soil. They are designed to be used for insulation in walls in houses. Would ask them and see what they say.
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