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Limited attic access may make it necessary to use a bore scope when inspecting for missing air barriers and insulation in existing buildings.
Right – Spray foam insulates the walls and ceilings separating the garage from the home.
Right-- IR photo shows how effectively spray foam insulated/air sealed attic kneewall and the floor cavities under kneewall
The attic kneewall and the open floor cavities under kneewall are both sealed and insulated in one step with spray foam insulation
The batt insulation shown here was properly installed to fill the ceiling cavities.
The rim joists and top plates are air sealed and insulated with open-cell spray foam while the walls are filled with blown fiberglass.
The walls and ceilings of this post-and-beam home are filled with netted blown fiberglass.
This kneewall has no top plate and the resulting gap provides a wide-open pathway for air and vapor to travel between the living space and the attic