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Collage showing air leak in existing porch wall with no air barrier and how air barrier was installed
In two-story homes, the air barrier separating the wall insulation from the porch attic is sometimes missing
Install a rigid air barrier to separate the porch attic from the conditioned space.
Install the exterior wall sheathing to extend to or beyond the porch roof rafters
Insulate the porch-attic wall making sure the insulation fully aligns with the inside wall sheathing
Right – Air barrier and penetrations sealed between porch attic and conditioned space