The Myth of R-Value as well as traditional foam filled hot tub covers
R-value is a form of measurement of the ability to withstand heat transfer for materials like the fiberglass insulation in your house or possibly the protecting foam in hot tub covers The intent is that, the higher the R-value, the much better the heat storage and, warmth retention would be the main job of any hot tub cover.
A lot of markets utilizing R-values are managed by FTC criteria. Readily offered insulation should pass independent tests produced by American Specifications and also Screening Methods (ASTM) so as to be marketed or marked utilizing their R-Value.
The Misled Publics: As there is no FTC recognized independent examination for spa covers, So ANY stated R-value specified by a spa cover supplier remains in truth an unregulated, unmonitored “analysis” of an offered insulation value. It is open to misrepresentation as well as misuse, from including the R-value of an air space in between the water and also the bottom of the cover, spacing in between the vinyl and also the cover insulation, or simply coldly blowing up the fictitious number. Some hot tub dealers state exclusively the known R-value of the insulation itself, but of course that does not indicate that it was examined and supported to make use of in hot tub cover applications.
The R-value of the actual foam insulation, no matter the thickness, is ONLY rated for usage in COMPLETELY DRY structure applications! Which represents the fact that the R ranking of the foam is just relevant needs to it happen to be used in a wall, attic or floor. Due to the fact that needs to it were to be made use of in a wet atmosphere, that sort of insulation would certainly stop working rapidly.
Foam Thickness and Foam Thickness.
These two aspects that spa cover suppliers declare impact the R-value of spa covers, when in fact that R rating itself has nothing to do with the foam when it is made use of in a hot tub cover. In fact, it is as misguiding as the concept that a taper on the cover will actually maintain it from obtaining hefty.
Real, the foam density and also density would certainly have a bearing on the insulation buildings In the event the Usage of the foam were in conformity with the designed use a totally DRY atmosphere.
No matter if the dealership declares his spa covers are made with the most expensive spa cover foam (inflexible mobile polystyrene thermal insulation) offered, resists breakage, vapor absorption and chemical damages more than all the others they’ve checked. The reality is, R variable is NOT something they evaluate, and STANDING UP TO damage as well as saturation are not the same as AVOIDING it entirely.
When searching for and also comparing spa covers, ALL claims associated with R-value of a cover that has foam are absolutely unverified. Foam Thickness and also Foam Thickness do not have any ADDED R VALUE, given that the foam is not developed to be used over a wet setting. A lot of spa cover suppliers repeat exactly the same numbers as well as consequently hot tub owners have been educated to think the lie. Some dealerships utilize some fancy charts to corroborate their cases, however the main point is those cases could not remain in conformity to the ASTM.
R-value screening of materials is completed at room temperature level, as well as doesn’t take into consideration dampness and vapor. In the spa setting, there is warm water and also excellent amounts of steamy wetness. Each of which will significantly lower the R-value of any kind of foam. A spa at 105 degrees will defeat the R-value of any kind of foam tested to make use of in a dry application.
Don’t allow the R-value of foam be thought about the dimension for spa cover high 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 other, in any kind of test or real hot tub application. (Hello there, like those from SpaCap.com )
Do not be fooled by claims of high density as well as weight, vacuum wrapped in sheets of heat bonded polyethylene, sealed in heavy gauge marine quality plastic, with chemical resistant scrim and also stitching. It won’t shield too. It will definitely still come to be saturated, distorted or broken. It really was outdated thirty years back.
SpaCap.com spa covers don’t make use of foam panels like the regular rigid foam filled hot tub covers. Instead they use air chambers to do the insulating. Aside from being extra reliable, the air chambers do not suck up wetness like every foam-filled cover ever made.
Why not go to SpaCap.com and get a hot tub cover for your spa today and obtain the next generation of hot tub covers.