How it Works?
Standard diffusers are made of thin Aluminum sheet having a high thermal conductivity of 237 w/m K. As these diffusers are directly in the supply air flow (about 12 °C ) the temperature of the diffuser face quickly drops below the Dew Point of the air and condensation occurs.
Mold Due to Moisture
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Another issue is the gaps that always exist between the supply plenum/duct and the ceiling space/diffuser neck. This results in the conditioned air being mixed mixed with the unconditioned air in the ceiling space and moisture is transferred into the supply air flow. Also a portion of the air is blown into ceiling space so less air flows into the room to be cooled = POOR COOLING EFFICIENCY.
FLEXseal diffusers are fabricated from a composite material having a very low thermal conductivity of only 0.0635 w/m K. This means that they do not get cold and so condensation at the diffusers does not occur.
The diffusers and linear bar grills have hinged wings that automatically seal off any gaps between the supply plenum/duct and the ceiling/diffuser. The result is no dripping, no mold and improved air-conditioning efficiency.
