Bathtub insulation :D
 

I am in the middle of doing a Full bathroom Reno replacing everything and am taking this chance to insulate the new Tub.

A) My goal is to have the hot water stay hotter for longer much like a insulated travel mug does.
&
B) As a side effect the tub radiate less coldness / absorb less of the rooms warmth.

I have the fiberglass tub upside down and have started applying the spray foam to it.. I need more foam or it would be done by now..tomorrow it will be.

Interesting project. I'd like to see pics. :)

How thick is the foam layer going to be? What type of foam?

I'll post some pics later today/tonight when I get it finished, I am using "Great Stuff" in a spray can to insulate it 3 to 5 inches all around.

add: as much as possible anyways as the bottom can only hold a inch of foam, so it will only get that.

Is this so that you can sit and unwind after a long stressful day?

...do you light scented candles too?

;)

Its Popular with Hot Tubs so why not a Soaker Tub.
It will be a Eco Tub and require Less hot water top ups to maintain the temp.

It will also keep the room warmer when the tubs not being used

Almost done
 

1 more can and it will be complete making for a total 9 of the 900 gr. cans of Great stuff to do the tub. I used some Styrofoam foamed in along the front apron to take up some space and help stretch the spray foam.

I did it in the living room miraculously without making a mess of the house , I did however get spray foam on my hands and cloths.
In the pics you can see I was trimming the foam by all the bits and pieces..
I need to apply 1 more can to the bottom then its covered and done.

the $80 cost Pro rated over the next 20 years works out to 33 cents a month or $4 a year.

http://ecorenovator.org/forum/attach...-insulated-jpg

http://ecorenovator.org/forum/attach...1-more-can-jpg

I put the last can on , it will expand for the 24hrs before I trim it again then I seal it and put it in place. Once its plumbed in I will stuff the area around the tub with some left over fiberglass insulation for a complete fill of the bathtubs area.

It will be as warm as a thermos ..I think


I am thinking about making a cellulose insulation concrete mix for the tub`s leveling bed for more insulation. Its r-value is reported to be within 2.0 and 3.0 per inch

http://en.wikipedia.org/wiki/Papercrete

http://www.livinginpaper.com/mixes.htm

Cool idea.

I have nixed the Papercrete idea in favor of silicone, After realizing the bathtub was out of level only about a 1/8th of a inch , I opted for another solution -use Silicone to bond the Tub in place , its shimmed on the center floor joist of course :eek:
I Put a whack of latex silicone on the tubs base, sealing the foam that I exposed when leveling it and filling the imperfections in preparation for being mounted.

I ended up using 10 cans of spray foam so far , the 11th can will go on after its mounted for some finishing touches when mounting it.