The Myth of R-Value as well as typical foam filled hot tub covers
R-value is a form of dimension of the capability to withstand heat transfer for products like the fiberglass insulation in your residence or maybe the protecting foam in hot tub covers The intent is that, the better the R-value, the much better the heat storage and, warmth retention would certainly be the primary job of any kind of hot tub cover.
Many markets utilizing R-values are controlled by FTC standards. Readily sold insulation must pass independent tests developed by American Specifications as well as Testing Methods (ASTM) so as to be promoted or marked utilizing their R-Value.
The Misled Masses: As there is no FTC identified independent test for spa covers, So ANY stated R-value specified by a spa cover dealership remains in reality an unregulated, unmonitored “interpretation” of a given insulation value. It is open to misrepresentation and also abuse, from adding the R-value of an air space in between the water as well as all-time low of the cover, spacing between the plastic and also the cover insulation, or simply coldly pumping up the make believe number. Some hot tub suppliers mention solely the recognized R-value of the insulation itself, yet naturally that doesn’t mean that it was tested and recommended to use in hot tub cover applications.
The R-value of the real foam insulation, regardless of the thickness, is ONLY rated for use in COMPLETELY DRY building applications! Which indicates the fact that the R rating of the foam is only applicable must it happen to be used in a wall, attic or floor. Due to the fact that must it were to be utilized in a moist environment, that kind of insulation would fail swiftly.
Foam Density and Foam Thickness.
These two factors that spa cover dealers claim impact the R-value of spa covers, when actually that R rating itself has nothing to do with the foam when it is utilized in a hot tub cover. Really, it is as misinforming as the suggestion that a taper on the cover will actually maintain it from getting hefty.
True, the foam density and density would have a bearing on the insulation properties In case the Use of the foam were in conformity with the designed use a totally DRY setting.
Regardless if the supplier declares his spa covers are made with the most expensive spa cover foam (inflexible cellular polystyrene thermal insulation) available, withstands breakage, vapor absorption as well as chemical damage more than all the others they have actually checked. The truth is, R element is NOT something they test, as well as STANDING UP TO breakage and saturation are not the like AVOIDING it entirely.
When trying to find and also comparing spa covers, ALL claims related to R-value of a cover that has foam are absolutely unverified. Foam Density as well as Foam Density do not have any type of ADDED R WORTH, considering that the foam is not developed to be applied over a damp atmosphere. Many spa cover suppliers repeat exactly the same numbers and also consequently hot tub owners have actually been trained to believe the lie. Some dealers use some elegant graphs to confirm their cases, nonetheless the main point is those insurance claims could not be in accordance to the ASTM.
R-value screening of materials is completed at room temperature, and also doesn’t think about wetness and also vapor. In the spa setting, there is warm water and excellent quantities of steamy wetness. Each which will significantly reduce the R-value of any foam. A spa at 105 levels will defeat the R-value of any type of foam examined to make use of in a dry application.
Don’t allow the R-value of foam be taken into consideration the dimension for spa cover top quality. Rather search for a spa cover without FOAM. Instead, hot tub covers that use air filled chambers as a choice for rigid foam boards will out preform other, in any kind of examination or actual hot tub application. (Hi, like those from SpaCap.com )
Do not be tricked by claims of high density and also weight, vacuum wrapped in sheets of heat welded polyethylene, secured in hefty gauge marine quality plastic, with chemical resistant scrim and also sewing. It won’t protect as well. It will certainly still end up being saturated, warped or broken. It really was outdated thirty years back.
SpaCap.com spa covers do not use foam panels like the common rigid foam filled hot tub covers. Instead they make use of air chambers to do the insulating. In addition to being extra efficient, the air chambers do not suck up wetness like every foam-filled cover ever made.
Why not visit SpaCap.com as well as order a hot tub cover for your spa today and get the next generation of hot tub covers.