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SH140 02-08-2013 01:43 PM

Insulating bathtub?
Will be remodeling bathroom soon. I'm going with an acrylic tub and was wondering what is the procedure for insulating and sound-deadening underneath tub before install? Is it a spray application of some kind? Thanks in advance.

brockmiera 02-08-2013 02:35 PM

The proper installation instructions should come with the new tub. Have you bought it yet?

md2lgyk 02-08-2013 03:02 PM

In 40 years of DIYing, I've never heard of insulating a tub. Non-metallic tubs were often set in a bed of mortar to prevent creaking, but that's not common any more.

SH140 02-09-2013 12:15 PM

No, I haven't purchased the tub yet...........On other sites I've read posts that alluded to the installer putting some kind of "insulation" on tub before install to improve heat retention quality (and also the noise factor), but they didn't say what product they used. I assumed it was a more common practice than it seems to be......But I will be setting the tub in a mortar base (I've heard too many stories of tubs that flex and creak when you get in it). I want to get this right the first time, even if it's overkill. :wink:

joecaption 02-09-2013 12:20 PM

A quality buld tub will be self supporting, some even come with a thick foam pad it sits on.

GBrackins 02-09-2013 04:13 PM

we have used spray foam in a bed to sit a tub in/on. Foam pad would be much easier.

SH140 02-10-2013 01:21 PM

I realize that the bottom of tub will sit on a mortar bed for support of the tub bottom. What I'm trying to find out is, to get extra insulation value, does anyone put any kind of insulation in the "cavity" of the tub? (not the bottom where the mortar will be)....I'm beginning to wonder if I really heard about doing this somewhere, or if I just dreamed it up on my own..:confused1: :confused1: :confused1:

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