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Wrong - Wall cavities behind shower are not completely filled with insulation and are lacking the solid interior air barrier.

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The I-joist is continuous along the shared wall and serves as a natural air barrier between the garage and the house

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Air barrier at garage band joist - 1 1/2 inch rigid insulation with 2x4 sleepers

CAD File

House wrap is sealed at all seams and overlaps flashing to serve as a continuous drainage plane over the exterior walls.

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Pumpkin Ridge Passive House Video #009: Wall-To-Roof Air Barrier (Part II)

Video

Video describing the wall-to-roof air barrier details of a passive house.

Pumpkin Ridge Passive House Video #13: Completed Wall-to-Attic Air Barrier Details

Video

Video describing the wall-to-attic air barrier details of a passive house.

Wrong - When ceiling joists over a garage run perpendicular to the adjoining wall, the joist bays must be blocked and sealed to prevent garage fumes from entering the living space

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Framing is sequenced to install an air barrier of OSB, plywood, or rigid foam between the porch and the attic.

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Wrong - The faced batt insulation does not provide an air barrier in the joist bay between the garage and the conditioned space of the home.

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A Simplified Model for Estimating Population-Scale Energy Impacts of Building Envelope Air-Tightening and Mechanical Ventilation Retrofits

Reference

Report describing how changing the air exchange rate of a home (the sum of the infiltration and mechanical ventilation airflow rates) affects the annual thermal conditioning energy.

Wrong – An opportunity to use structural members as a natural air barrier was missed in this home and blocking was not initially planned for between the garage and living space.

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Right - Closed-cell spray foam is installed as a skim coat to provide air tightness to an exterior wall cavity before installing batt or blown cavity insulation.

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Right - House wrap is carefully installed from the top of the roof line to the foundation; seams are overlapped and taped to provide a continuous air- and weather-resistant barrier

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Airflow within drop-in ceiling assemblies is generally not a concern due to the limited vertical height. However, airflow within air gaps in walls is a concern due to the much larger vertical height.

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Sill Plates (3)

Video

Video describing how to properly air seal sill plates.

Pumpkin Ridge Passive House Video #14: Plumbing Details

Video

Video discussing the air sealing details around plumbing pipes in the exterior walls of a passive house.

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

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.

Wrong - Wall cavities behind shower are not completely filled with insulation and are lacking the solid interior air barrier.

The I-joist is continuous along the shared wall and serves as a natural air barrier between the garage and the house

Air barrier at garage band joist - 1 1/2 inch rigid insulation with 2x4 sleepers

House wrap is sealed at all seams and overlaps flashing to serve as a continuous drainage plane over the exterior walls.

Pumpkin Ridge Passive House Video #009: Wall-To-Roof Air Barrier (Part II)

Pumpkin Ridge Passive House Video #13: Completed Wall-to-Attic Air Barrier Details

Wrong - When ceiling joists over a garage run perpendicular to the adjoining wall, the joist bays must be blocked and sealed to prevent garage fumes from entering the living space

Framing is sequenced to install an air barrier of OSB, plywood, or rigid foam between the porch and the attic.

Wrong - The faced batt insulation does not provide an air barrier in the joist bay between the garage and the conditioned space of the home.

A Simplified Model for Estimating Population-Scale Energy Impacts of Building Envelope Air-Tightening and Mechanical Ventilation Retrofits

Wrong – An opportunity to use structural members as a natural air barrier was missed in this home and blocking was not initially planned for between the garage and living space.

Right - Closed-cell spray foam is installed as a skim coat to provide air tightness to an exterior wall cavity before installing batt or blown cavity insulation.

Right - House wrap is carefully installed from the top of the roof line to the foundation; seams are overlapped and taped to provide a continuous air- and weather-resistant barrier

Airflow within drop-in ceiling assemblies is generally not a concern due to the limited vertical height. However, airflow within air gaps in walls is a concern due to the much larger vertical height.

Sill Plates (3)

Pumpkin Ridge Passive House Video #14: Plumbing Details

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

Certified Insulated Siding: Quality, Comfort and Energy Performance

Attic Knee Walls

Aeroseal: Our Process

Garage Rim/Band Joist Adjoining Conditioned Space

Floor Above Unconditioned Basement or Vented Crawlspace

Wallingford Passive House | Exterior Assembly Details

ABAA Section 072713: Self-Adhered Sheet Membranes

Walls Behind Fireplaces

Mea Culpa Roofs, BSI-083

2012 IECC Code Level Insulation – DOE Zero Energy Ready Home Requirements

Karuna Passive House Blower Door Test

Cantilevered Floor

Rigid Foam Insulation Installed Between Existing House and Garage Walls