Hot Tub Covers and the R-Value

The Myth of R-Value as well as conventional foam filled hot tub covers

R-value is a form of measurement of the capability to resist warm transfer for materials like the fiberglass insulation in your home or possibly the insulating foam in hot tub covers The intent is that, the better the R-value, the better the heat storage and also, warm retention would be the primary job of any type of hot tub cover.

Most sectors using R-values are controlled by FTC criteria. Readily marketed insulation has to pass independent examinations developed by American Standards and also Screening Techniques (ASTM) so as to be advertised or noted using their R-Value.

The Misled Masses: As there is no FTC recognized independent examination for spa covers, So ANY mentioned R-value mentioned by a spa cover dealer is in reality an uncontrolled, unmonitored “analysis” of an offered insulation value. It is open to misstatement as well as abuse, from including the R-value of an air space between the water and also all-time low of the cover, spacing in between the vinyl and also the cover insulation, or simply blatantly pumping up the fictitious number. Some hot tub dealers mention solely the well-known R-value of the insulation itself, but of course that does not imply that it was examined and backed to utilize in hot tub cover applications.

The R-value of the actual foam insulation, despite the density, is ONLY ranked for usage in COMPLETELY DRY building applications! Which represents that the R score of the foam is only suitable ought to it take place to be used in a wall surface, attic or flooring. Since needs to it were to be made use of in a wet atmosphere, that sort of insulation would fail swiftly.

Foam Density and also Foam Density.

These two elements that spa cover suppliers claim influence the R-value of spa covers, when in fact that R ranking itself has nothing to do with the foam when it is used in a hot tub cover. Really, it is as misdirecting as the idea that a taper on the cover will truly keep it from getting hefty.

True, the foam thickness and density would certainly have a bearing on the insulation residential properties In case the Use of the foam were in compliance with the designed use a completely DRY setting.

Regardless if the dealer asserts his spa covers are made with one of the most expensive spa cover foam (inflexible mobile polystyrene thermal insulation) offered, stands up to breakage, vapor absorption as well as chemical damages more than all the others they’ve examined. The reality is, R element is NOT something they examine, and also RESISTING breakage and saturation are not the same as AVOIDING it completely.

When searching for as well as contrasting spa covers, ALL insurance claims connected with R-value of a cover that has foam are totally unsubstantiated. Foam Thickness and also Foam Density do not have any ADDED R VALUE, given that the foam is not created to be applied over a damp environment. Many spa cover dealers repeat precisely the very same numbers and also subsequently hot tub proprietors have been trained to think the lie. Some dealers employ some expensive charts to confirm their claims, nevertheless the main point is those claims could not remain in accordance to the ASTM.

Misconception Broken!

R-value screening of products is completed at room temperature level, and does not take into consideration wetness and vapor. In the spa setting, there is warm water and also excellent amounts of steamy moisture. Each of which will significantly minimize the R-value of any foam. A spa at 105 degrees will certainly beat the R-value of any foam examined to utilize in a dry application.

Don’t enable the R-value of foam be thought about the measurement for spa cover quality. Instead search for a spa cover without FOAM. Instead, hot tub covers that use air filled chambers as an alternative for rigid foam boards will certainly out preform any other, in any kind of examination or real hot tub application. (Hello, like those from )

Do not be deceived by claims of high thickness and also weight, vacuum wrapped in sheets of heat bonded polyethylene, secured in heavy gauge marine grade plastic, with chemical resistant scrim and stitching. It won’t shield also. It will absolutely still come to be saturated, warped or busted. It really was out-of-date thirty years back. spa covers do not utilize foam panels like the normal rigid foam filled hot tub covers. Instead they use air chambers to do the insulating. Aside from being more reliable, the air chambers do not suck up dampness like every foam-filled cover ever made.

Why not see and purchase a hot tub cover for your spa today and get the future generation of hot tub covers.

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