HomeMy WebLinkAboutFile Documents.222 Cleveland St.0027.2017 (13).ARBU1
Ruth Kinney
From:Vanessa Ramirez <Vanessa.Ramirez@watkinsmfg.com>
Sent:Friday, April 28, 2017 2:47 PM
To:Joseph Edward
Subject:R-factor
Joseph,
This is correspondence we have from one of our engineers about R-factor for the whole spa. I hope this helps.
Your question is a little difficult to answer – so let me do it at several thicknesses… As the R-Value is a function of density
and thickness… our Density is constant at 1.8 ~ 2.0 lbs./cu. Ft….. so let me vary the thicknesses….
Thickness R-Value
3.5” (upper bartop) 15
5.5” (further down) 23
7.5” (further down) 30
9.5” (further down) 38
11.5” 47
If we were to make a statement on R-Value we would first use the cover (weakest link) and that has an R-Value of 14. At
the thinnest part of the bartop (seal edge) the Fibercore has an R-Factor of @ 15. It increases significantly as the wall
thickens as you move down to ground level.
Hope that makes sense.
Robin
Vanessa Ramirez|Sr. CSR
Watkins Wellness
P 760-305-4175 F 760-305-4201
vanessa.ramirez@watkinsmfg.com
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