Isotherm vs Fabufill

Lately, there have been quite a few polyester insulation products emerging on the South African market. Not all polyester products have been created the same. Take a look at the difference between isotherm vs Fabufill aka Platinum Fiber Insulation.

Isotherm vs Fabufill Insulation R-value and density

When selecting an insulation product to install in your roof, you should always check the r-value. The higher the r-value the higher the thermal and acoustic properties it will have. Let’s take a look at the difference in R-value between the two products.

Isotherm Insulation

40mm = 0.82
50mm = 1.02
75mm = 1.53
100mm = 2.33
135mm = 3.14 – Not SABS Approved
145mm = 3.37 – Not SABS Approved

Fabufill (Platinum Fiber Insulation)

40mm – 0.96
50mm – 1.15
75mm – 1.69
100mm – 2.20
135mm – 3.10 – SABS Approved
145mm – 3.35 – SABS Approved

The two products are very close in R-value and have around the same thermal performance. The difference is that Fabufill is SABS approved where isotherm is no longer SABS approved. The SABS approval rating is important as the product is no longer quality control checked.

Another advantage of Fabufill is that it comes in cheaper than isotherm, making it more affordable for homeowners. If you get the right product installed the first time you won’t have a problem in the end. Do some research beforehand and only install the best insulation products. This concludes this Isotherm vs Fabufill (Platinum Fiber Insulation) article.

Read more on Fabufill Insulation