The Myth of R-Value and typical foam filled hot tub covers
R-value is a type of dimension of the ability to stand up to warmth transfer for products like the fiberglass insulation in your house or perhaps the shielding foam in hot tub covers The intent is that, the greater the R-value, the far better the warm storage and, warm retention would be the key work of any hot tub cover.
Many industries utilizing R-values are regulated by FTC criteria. Readily sold insulation must pass independent tests developed by American Requirements and also Screening Techniques (ASTM) so regarding be marketed or noted utilizing their R-Value.
The Misled Masses: As there is no FTC recognized independent test for spa covers, So ANY mentioned R-value mentioned by a spa cover dealership remains in reality an unregulated, unmonitored “interpretation” of a given insulation worth. It is open to misstatement as well as misuse, from including the R-value of an air space in between the water and also all-time low of the cover, spacing between the vinyl as well as the cover insulation, or simply coldly pumping up the make believe number. Some hot tub suppliers mention exclusively the well-known R-value of the insulation itself, yet naturally that doesn’t indicate that it was evaluated as well as backed to utilize in hot tub cover applications.
The R-value of the real foam insulation, no matter the thickness, is ONLY ranked for use in COMPLETELY DRY structure applications! Which signifies that the R score of the foam is just appropriate should it happen to be applied in a wall, attic room or flooring. Since must it were to be utilized in a moist environment, that sort of insulation would certainly fall short rapidly.
Foam Thickness as well as Foam Density.
These two aspects that spa cover suppliers assert affect the R-value of spa covers, when actually that R score itself has nothing to do with the foam when it is made use of in a hot tub cover. In fact, it is as deceiving as the suggestion that a taper on the cover will actually maintain it from getting heavy.
Real, the foam density as well as thickness would certainly have a bearing on the insulation residential or commercial properties In the event the Usage of the foam remained in conformity with the designed use an entirely DRY atmosphere.
Regardless if the dealer asserts his spa covers are made with the most pricey spa cover foam (stiff cellular polystyrene thermal insulation) readily available, stands up to damage, vapor absorption and also chemical damages more than all the others they have actually evaluated. The truth is, R element is NOT something they test, and also RESISTING damage and saturation are not the like AVOIDING it altogether.
When trying to find as well as contrasting spa covers, ALL cases connected with R-value of a cover that has foam are entirely dubious. Foam Thickness and Foam Density do not have any kind of ADDED R VALUE, given that the foam is not made to be applied over a wet environment. Most spa cover dealerships repeat exactly the same numbers and also as a result hot tub owners have been educated to believe the lie. Some suppliers utilize some fancy charts to confirm their claims, nonetheless the bottom line is those cases can not remain in accordance to the ASTM.
R-value testing of materials is completed at room temperature level, and also doesn’t think about moisture and also vapor. In the spa setting, there is hot water and also good amounts of steamy wetness. Each of which will significantly decrease the R-value of any type of foam. A spa at 105 levels will certainly beat the R-value of any kind of foam checked to make use of in a dry application.
Do not allow the R-value of foam be considered 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 out preform other, in any test or genuine hot tub application. (Hey there, like those from SpaCap.com )
Don’t be mislead by claims of high density as well as weight, vacuum wrapped in sheets of heat bonded polyethylene, sealed in hefty gauge marine grade vinyl, with chemical resistant scrim and also sewing. It won’t insulate as well. It will absolutely still come to be saturated, deformed or broken. It absolutely was obsolete thirty years ago.
SpaCap.com spa covers do not make use of foam panels like the regular rigid foam filled hot tub covers. Rather they make use of air chambers to do the insulating. Besides being extra reliable, the air chambers do not suck up dampness like every foam-filled cover ever made.
Why not see SpaCap.com and also get a hot tub cover for your spa today and obtain the future generation of hot tub covers.