The Myth of R-Value and also traditional foam filled hot tub covers
R-value is a type of measurement of the capacity to stand up to heat transfer for products like the fiberglass insulation in your house or possibly the insulating foam in hot tub covers The intent is that, the better the R-value, the much better the warm storage space and, warmth retention would certainly be the key work of any hot tub cover.
A lot of industries making use of R-values are regulated by FTC requirements. Readily offered insulation should pass independent tests created by American Standards and also Testing Approaches (ASTM) so regarding be marketed or noted utilizing their R-Value.
The Misled Publics: As there is no FTC recognized independent examination for spa covers, So ANY mentioned R-value stated by a spa cover dealership is in reality an uncontrolled, unmonitored “analysis” of an offered insulation value. It is open to misstatement as well as misuse, from including the R-value of an air space in between the water and the bottom of the cover, spacing between the plastic and also the cover insulation, or simply coldly blowing up the make believe number. Some hot tub dealerships mention specifically the recognized R-value of the insulation itself, however naturally that does not indicate that it was examined as well as backed to make use of in hot tub cover applications.
The R-value of the real foam insulation, no matter the thickness, is ONLY rated for use in COMPLETELY DRY building applications! Which represents that the R score of the foam is only applicable needs to it occur to be applied in a wall surface, attic or flooring. Since needs to it were to be used in a wet environment, that type of insulation would fail promptly.
Foam Thickness and also Foam Density.
These two elements that spa cover suppliers declare impact the R-value of spa covers, when actually that R score itself has nothing to do with the foam when it is used in a hot tub cover. Actually, it is as deceiving as the idea that a taper on the cover will actually maintain it from getting heavy.
True, the foam density and thickness would certainly have a bearing on the insulation properties In case the Usage of the foam remained in conformity with the created use of a completely DRY environment.
No matter if the dealer asserts his spa covers are made with one of the most expensive spa cover foam (inflexible cellular polystyrene thermal insulation) offered, stands up to breakage, vapor absorption and chemical damages more than all the others they have actually checked. The truth is, R factor is NOT something they check, as well as RESISTING damage and also saturation are not the same as PREVENTING it altogether.
When searching for and contrasting spa covers, ALL insurance claims related to R-value of a cover that has foam are absolutely dubious. Foam Thickness and Foam Density do not have any type of ADDED R VALUE, since the foam is not developed to be used over a wet setting. Most spa cover suppliers repeat precisely the exact same numbers as well as consequently hot tub owners have actually been trained to believe the lie. Some suppliers employ some fancy graphs to confirm their claims, nevertheless the bottom line is those cases can not remain in conformity to the ASTM.
R-value screening of materials is finished at room temperature, and does not think about wetness and also vapor. In the spa setting, there is hot water and also good amounts of steamy dampness. Each which will significantly minimize the R-value of any type of foam. A spa at 105 degrees will certainly defeat the R-value of any kind of foam checked to utilize in a dry application.
Don’t allow the R-value of foam be considered the measurement for spa cover quality. Instead look for a spa cover with NO FOAM. Instead, hot tub covers that use air filled chambers as a choice for rigid foam boards will certainly out preform any other, in any kind of test or actual hot tub application. (Hey there, like those from SpaCap.com )
Don’t be deceived by claims of high thickness and weight, vacuum wrapped in sheets of heat bonded polyethylene, sealed in heavy gauge marine grade plastic, with chemical resistant scrim and also stitching. It won’t shield as well. It will absolutely still become saturated, warped or broken. It genuinely was outdated thirty years earlier.
SpaCap.com spa covers do not use foam panels like the normal rigid foam filled hot tub covers. Rather they utilize air chambers to do the insulating. Other than being more efficient, the air chambers do not suck up wetness like every foam-filled cover ever made.
Why not check out SpaCap.com and buy a hot tub cover for your spa today and obtain the future generation of hot tub covers.