Thermoseal: independent report shows true warm edge comparison

  Thermal insulation

A report commissioned by Thermoseal Group shows a comparison of the thermal performance through the edge of insulated glass. According to the report, there is an enlightening change in the order of thermal performance of Foam Spacer Systems and Spacer Tube Systems.

Thermoseal
A report commissioned by Thermoseal Group shows a comparison of the thermal performance through the edge of insulated glass
A report commissioned by Thermoseal Group and produced by an independent warm edge consultant shows a comparison of the thermal performance through the edge of insulated glass, including: Warm Edge Spacer Bar, Desiccant, PIB and Sealant. The results demonstrate an enlightening change in the order of thermal performance of Foam Spacer Systems and Spacer Tube Systems.
“Surely this should be the true basis for exchangeability within BFRC Window Energy Ratings?” asks Mark Hickox, Sales Director at Thermoseal Group Limited. Mark continues: “As a significant distributor in the insulated glass (IG) component supply market and now as a manufacturer of our own range of warm edge spacers, we have been heavily involved in the debates relating to manufacturing standards and how IG components influence Window Energy Ratings (WERs). The main focus which has been well documented in the press is in relation to debates about the exact performance of warm edge spacers – whose is better and by what fractions.”
If you look at the figures closely, although spacer bars are proven to affect WERs, it is better to look more closely at thermal transfer at the edge of the unit incorporating all of the edge components including the spacer, desiccant, PIB, and secondary sealant. This is particularly important when you look at single seal systems such as foam spacer which use a minimum sealant depth of 5mm. In this case, there is a greater influence of the sealant which shows a negative effect on...

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