Old Brick Buildings With Basements Venting Into Attic

Doubled vapor barriers in attic.

Old brick buildings with basements venting into attic.

But if the new layer has a kraft paper backing it can trap moisture and turn the layers underneath into a soggy mess. See more ideas about attic vents gable vents vented. The building codes and building science for. 1 from several articles including insulating old brick buildings i read that the high density spray foam should be applied directly to the inner brick concrete block surface.

Trapped moisture in masonry construction if not addressed can lead to problems such as spalling. As a result moisture is no longer allowed to migrate freely throughout the building envelope. The idea of roof vents existed for hundreds of years with natural vents employed in chinese buildings during the tang dynasty natural ventilation ducts in the buddhist monks caves and wind catchers incorporated in arabian architecture. Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals.

Instead fresh air still flows in through the soffit vents and travels along the underside of the sheathing until it reaches a ridge vent or can be vented with another type of exhaust vent. However my architect says that on a prior project a consultant from building science recommended leaving an airspace between the brick cmu and the spray insulation. Laying a second layer of fiberglass batts in the attic is an easy way to boost r values.