Hot Tub Covers and the R-Value

The Misconception of R-Value as well as typical foam filled hot tub covers

R-value is a kind of dimension of the capability to resist heat transfer for materials like the fiberglass insulation in your house or possibly the insulating foam in hot tub covers The intent is that, the greater the R-value, the far better the heat storage and, heat retention would be the main task of any kind of hot tub cover.

The majority of sectors utilizing R-values are managed by FTC standards. Commercially offered insulation has to pass independent tests developed by American Requirements and also Testing Techniques (ASTM) so about be advertised or noted utilizing their R-Value.

The Misled Publics: As there is no FTC identified independent test for spa covers, So ANY stated R-value stated by a spa cover dealership remains in truth an unregulated, unmonitored “interpretation” of a given insulation worth. It is open to misrepresentation as well as abuse, from adding the R-value of an air space between the water as well as the bottom of the cover, spacing in between the plastic as well as the cover insulation, or just coldly pumping up the make believe number. Some hot tub dealerships state solely the recognized R-value of the insulation itself, yet obviously that doesn’t mean that it was checked and also supported to make use of in hot tub cover applications.

The R-value of the actual foam insulation, no matter the density, is ONLY ranked for usage in DRY building applications! Which signifies that the R score of the foam is only suitable needs to it take place to be used in a wall surface, attic or flooring. Because ought to it were to be used in a wet setting, that type of insulation would certainly fall short swiftly.

Foam Thickness as well as Foam Thickness.

These 2 factors that spa cover dealers assert influence the R-value of spa covers, when as a matter of fact that R ranking itself has nothing to do with the foam when it is utilized in a hot tub cover. Really, it is as misdirecting as the concept that a taper on the cover will actually keep it from getting hefty.

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

No matter if the supplier asserts his spa covers are made with one of the most expensive spa cover foam (inflexible mobile polystyrene thermal insulation) available, stands up to damage, vapor absorption and chemical damages more than all the others they’ve examined. The truth is, R factor is NOT something they test, and also STANDING UP TO breakage and also saturation are not the same as PREVENTING it altogether.

When searching for and comparing spa covers, ALL insurance claims associated with R-value of a cover that has foam are totally unverified. Foam Density and Foam Density do not have any kind of ADDED R VALUE, given that the foam is not designed to be applied over a wet setting. The majority of spa cover dealerships repeat precisely the very same numbers as well as as a result hot tub proprietors have actually been educated to think the lie. Some dealers utilize some fancy charts to confirm their cases, nonetheless the main point is those claims can not be in accordance to the ASTM.

Misconception Busted!

R-value testing of products is completed at room temperature level, and also does not think about dampness and vapor. In the spa setting, there is hot water and also good quantities of steamy wetness. Each which will dramatically reduce the R-value of any type of foam. A spa at 105 levels will certainly defeat the R-value of any kind of foam tested to make use of in a completely dry application.

Do not enable the R-value of foam be thought about the measurement for spa cover high quality. Rather look 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 examination or genuine hot tub application. (Hi, like those from )

Do not be mislead by claims of high thickness as well as weight, vacuum wrapped in sheets of heat welded polyethylene, secured in hefty gauge marine quality plastic, with chemical resistant scrim as well as stitching. It won’t insulate as well. It will certainly still end up being saturated, deformed or damaged. It really was out-of-date thirty years earlier. spa covers don’t make use of foam panels like the normal rigid foam filled hot tub covers. Rather they make use of air chambers to do the insulating. In addition to being more effective, the air chambers do not suck up dampness like every foam-filled cover ever made.

Why not go to and order a hot tub cover for your spa today and get the next generation of hot tub covers.

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