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Air sealing at double walls

Air sealing at double walls

CAD File

Air Sealing Multifamily Party Walls

Guide

Guide describing how to air-seal common walls between dwelling units in multifamily housing.

Air Sealing Duct and Flue Shafts

Guide

Guide describing how to air-seal duct and flue shafts.

Wrong – Top plate not air sealed

Wrong – Top plate not air sealed

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Wrong – Top plate not air sealed

Wrong – Top plate not air sealed

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Air Sealing Modular Home Marriage Joints

Guide

Guide describing how to air-seal modular home marriage joints.

Conceptual air sealing strategy - upper wall section

CAD File

Air sealing at common wall between dwelling units

Air sealing at common wall between dwelling units

CAD File

Air seal the common wall between units in a multifamily structure to minimize air leakage.

Air seal the common wall between units in a multifamily structure to minimize air leakage.

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Wrong – This seam along a common wall is not air sealed.

Wrong – This seam along a common wall is not air sealed.

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Right – This seam along a common wall is air sealed.

Right – This seam along a common wall is air sealed.

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Right - Spray foam fills the walls and rim joists to air seal and insulate while caulk seals the framing joints.

Right - Spray foam fills the walls and rim joists to air seal and insulate while caulk seals the framing joints.

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Wrong – No air barrier installed between the walls and a larger gap between the walls that needs sealing

Wrong – No air barrier installed between the walls and a larger gap between the walls that needs sealing

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Air seal and insulate double-walls that are half-height or full-height walls used as architectural features in homes.

Air seal and insulate double-walls that are half-height or full-height walls used as architectural features in homes.

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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 rim joists and top plates are air sealed and insulated with open-cell spray foam while the walls are filled with blown fiberglass.

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A large bead of caulk is installed on the interior surface of the wall top and bottom plates to provide an air sealing gasket between the framing and the dry wall.

A large bead of caulk is installed on the interior surface of the wall top and bottom plates to provide an air sealing gasket between the framing and the dry wall.

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Wrong - Common wall sheathing not properly fastened or sealed

Wrong - Common wall sheathing not properly fastened or sealed

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Use caulk, foam, or equivalent material to seal gap between common wall

Use caulk, foam, or equivalent material to seal gap between common wall

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Use caulk, foam or equivalent material to seal gap between partition wall

Use caulk, foam or equivalent material to seal gap between partition wall

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The missing top plate in a kneewall was covered with lumber and rigid foam insulation and then sealed with spray foam

The missing top plate in a kneewall was covered with lumber and rigid foam insulation and then sealed with spray foam

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Gaps at shared common walls can be a significant source of air leakage in multi-family buildings

Gaps at shared common walls can be a significant source of air leakage in multi-family buildings

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Insulating sheathing is extended up to the roof rafters and sealed around the framing with spray foam as part of this exterior wall retrofit

Insulating sheathing is extended up to the roof rafters and sealed around the framing with spray foam as part of this exterior wall retrofit

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Rigid foam or wood blocking can be installed and sealed as shown to prevent airflow through the wall cavities between two rooms of different ceiling heights.

Rigid foam or wood blocking can be installed and sealed as shown to prevent airflow through the wall cavities between two rooms of different ceiling heights.

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Balloon framing at a gable end wall allows air to flow from the conditioned space and the wall cavity into the attic.

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The stud cavities in this balloon-framed wall do not have blocking where the attic floor abuts it; this allows air to flow from inside the home to the attic above.

The stud cavities in this balloon-framed wall do not have blocking where the attic floor abuts it; this allows air to flow from inside the home to the attic above.

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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

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

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Right - New flashing has been installed to complete the air and water control layers at the window openings of this wall retrofit that includes insulating the wall cavities with spray foam

Right - New flashing has been installed to complete the air and water control layers at the window openings of this wall retrofit that includes insulating the wall cavities with spray foam

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Install Top Plates or Blocking at the Top of Walls Adjoining Unconditioned Spaces

Guide

Guide describing how to correctly air-seal a wall with missing top plates or open wall cavities.

Certified Insulated Siding: Quality, Comfort and Energy Performance

Certified Insulated Siding: Quality, Comfort and Energy Performance

Presentation

This presentation will help you define insulated siding, understand R-value testing of insulated siding, describe proper installation of insulated siding, comply with energy codes and understand building energy performance program and software recognition.

This interior wall is intersected by two ceilings of different heights; without blocking installed at the level of the lower ceiling, a pathway for free airflow within the wall cavity or even into the attic is created.

This interior wall is intersected by two ceilings of different heights; without blocking installed at the level of the lower ceiling, a pathway for free airflow within the wall cavity or even into the attic is created.

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