The Misconception of R-Value as well as standard foam filled hot tub covers
R-value is a form of measurement of the ability to resist warm transfer for products like the fiberglass insulation in your house or possibly the protecting foam in hot tub covers The intent is that, the better the R-value, the far better the warmth storage and also, heat retention would certainly be the main job of any type of hot tub cover.
Most markets using R-values are managed by FTC requirements. Readily marketed insulation has to pass independent examinations created by American Specifications and Testing Techniques (ASTM) so as to be advertised or noted utilizing their R-Value.
The Misled Masses: As there is no FTC identified independent test for spa covers, So ANY mentioned R-value mentioned by a spa cover dealership is in reality an uncontrolled, unmonitored “interpretation” of a provided insulation worth. It is open to misrepresentation as well as misuse, from adding the R-value of an air space between the water and also the bottom of the cover, spacing in between the vinyl and the cover insulation, or simply blatantly blowing up the make believe number. Some hot tub dealerships specify solely the recognized R-value of the insulation itself, however certainly that does not mean that it was evaluated and supported to make use of 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 ranking of the foam is just relevant should it take place to be used in a wall, attic or flooring. Because should it were to be used in a moist environment, that type of insulation would certainly fall short swiftly.
Foam Thickness as well as Foam Thickness.
These 2 aspects that spa cover dealers claim 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 used in a hot tub cover. Really, it is as misdirecting as the concept that a taper on the cover will really keep it from obtaining heavy.
True, the foam density and also thickness would certainly have a bearing on the insulation residential properties In case the Usage of the foam were in compliance with the designed use an entirely DRY atmosphere.
Regardless if the dealership claims his spa covers are made with the most expensive spa cover foam (rigid cellular polystyrene thermal insulation) available, resists damage, vapor absorption and chemical damage greater than all the others they have actually evaluated. The fact is, R variable is NOT something they check, as well as STANDING UP TO breakage and also saturation are not the same as PREVENTING it altogether.
When seeking as well as contrasting spa covers, ALL claims associated with R-value of a cover that has foam are absolutely unsubstantiated. Foam Thickness and also Foam Thickness do not have any ADDED R WORTH, considering that the foam is not designed to be used over a wet atmosphere. A lot of spa cover suppliers repeat specifically the exact same numbers and consequently hot tub proprietors have actually been educated to think the lie. Some dealerships employ some elegant graphs to confirm their claims, nonetheless the bottom line is those cases could not be in conformity to the ASTM.
R-value testing of products is finished at room temperature level, and also does not consider moisture as well as vapor. In the spa environment, there is hot water as well as great quantities of steamy dampness. Each which will considerably reduce the R-value of any foam. A spa at 105 levels will certainly beat the R-value of any foam checked to make use of in a completely dry application.
Do not allow the R-value of foam be taken into consideration the measurement for spa cover quality. Instead search for a spa cover with NO FOAM. Instead, hot tub covers that use air filled chambers as an option for rigid foam boards will out preform other, in any test or actual hot tub application. (Hello, like those from SpaCap.com )
Don’t be tricked by claims of high density and also weight, vacuum wrapped in sheets of heat bonded polyethylene, secured in hefty gauge marine quality plastic, with chemical resistant scrim and also stitching. It will not shield too. It will absolutely still end up being saturated, deformed or damaged. It really was outdated thirty years back.
SpaCap.com spa covers do not utilize foam panels like the typical rigid foam filled hot tub covers. Instead they utilize air chambers to do the insulating. Apart from being more efficient, the air chambers do not suck up wetness like every foam-filled cover ever made.
Why not see SpaCap.com and also order a hot tub cover for your spa today and get the next generation of hot tub covers.