GreenSpecs
Allianz - Green Building Council Australia

Vent Sealing

Sealing over any unused vents in your ceilings or walls is a quick and easy way to lower heat loss in winter. Unless they’re needed for moisture ventilation or unflued gas heaters (which we recommend you avoid using), seal any spaces between the ducting and sheetrock with caulk or foam, and if you have a cooling vent, make sure to get an insulated vent cover that you can close in winter. Temporary covers can be used to seal over unused vents in rental properties.

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