The Myth of R-Value and also traditional foam filled hot tub covers
R-value is a form of measurement of the capacity to resist heat transfer for materials like the fiberglass insulation in your home or perhaps the insulating foam in hot tub covers The intent is that, the greater the R-value, the much better the warmth storage space and also, warm retention would certainly be the key job of any kind of hot tub cover.
Many sectors using R-values are managed by FTC standards. Commercially marketed insulation needs to pass independent tests created by American Standards as well as Testing Techniques (ASTM) so about be marketed or noted utilizing their R-Value.
The Misled Masses: As there is no FTC acknowledged independent test for spa covers, So ANY specified R-value stated by a spa cover dealer is in reality an unregulated, unmonitored “analysis” of an offered insulation value. It is open to misrepresentation as well as abuse, from including the R-value of an air space in between the water as well as the bottom of the cover, spacing between the vinyl and also the cover insulation, or merely coldly pumping up the fictitious number. Some hot tub dealers mention specifically the recognized R-value of the insulation itself, but of course that doesn’t mean that it was examined and backed to use in hot tub cover applications.
The R-value of the actual foam insulation, despite the density, is ONLY rated for use in COMPLETELY DRY structure applications! Which indicates the fact that the R ranking of the foam is just appropriate needs to it occur to be applied in a wall surface, attic room or floor. Due to the fact that ought to it were to be used in a moist setting, that sort of insulation would certainly fall short swiftly.
Foam Thickness as well as Foam Density.
These two variables that spa cover dealers assert impact the R-value of spa covers, when in fact that R rating itself has nothing to do with the foam when it is used in a hot tub cover. Actually, it is as misinforming as the idea that a taper on the cover will actually keep it from obtaining heavy.
Real, the foam density as well as density would have a bearing on the insulation properties In case the Use of the foam were in conformity with the made use an entirely DRY environment.
No matter if the dealer asserts his spa covers are made with one of the most pricey spa cover foam (inflexible cellular polystyrene thermal insulation) offered, stands up to damage, vapor absorption and chemical damage more than all the others they have actually checked. The fact is, R factor is NOT something they examine, and also WITHSTANDING breakage as well as saturation are not the same as PREVENTING it altogether.
When seeking and comparing spa covers, ALL cases associated with R-value of a cover that has foam are totally dubious. Foam Thickness and also Foam Density do not have any kind of ADDED R VALUE, because the foam is not created to be used over a wet atmosphere. Many spa cover dealerships repeat specifically the very same numbers and also consequently hot tub owners have been educated to believe the lie. Some dealerships use some fancy charts to corroborate their cases, nonetheless the bottom line is those claims can not be in accordance to the ASTM.
R-value screening of products is finished at room temperature, as well as does not consider wetness and also vapor. In the spa environment, there is warm water and good amounts of steamy dampness. Each of which will drastically lower the R-value of any foam. A spa at 105 degrees will beat the R-value of any kind of foam examined to use in a completely dry application.
Do not allow the R-value of foam be thought about the dimension for spa cover top quality. Rather search for a spa cover without any FOAM. Instead, hot tub covers that use air filled chambers as an option for rigid foam boards will certainly out preform other, in any examination or genuine hot tub application. (Hey there, like those from SpaCap.com )
Do not be mislead by claims of high thickness and also weight, vacuum wrapped in sheets of heat welded polyethylene, secured in hefty gauge marine quality plastic, with chemical resistant scrim and sewing. It won’t insulate also. It will definitely still come to be saturated, warped or broken. It truly was outdated thirty years back.
SpaCap.com spa covers do not make use of foam panels like the typical rigid foam filled hot tub covers. Instead they make use of air chambers to do the insulating. Besides being more effective, the air chambers do not suck up moisture like every foam-filled cover ever made.
Why not go to SpaCap.com and also get a hot tub cover for your spa today and get the next generation of hot tub covers.