Old Brick Buildings With Basements Venting Into Attic

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.

Old brick buildings with basements venting into attic.

Laying a second layer of fiberglass batts in the attic is an easy way to boost r values. But if the new layer has a kraft paper backing it can trap moisture and turn the layers underneath into a soggy mess. Doubled vapor barriers in attic. The building codes and building science for.

Oct 6 2019 explore donnapfingst s board attic vent on pinterest. 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. As a result moisture is no longer allowed to migrate freely throughout the building envelope. Why ventilation advances in building construction techniques have led to a structure which is significantly more energy efficient and air tight than in years past.

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. If it s jammed too tightly into a cavity it can t trap as much air and won t be as effective.