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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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Advanced Framing: Insulated Corners

Guide

Guide describing how to frame and insulate corners to reduce heat losses and gains though structural framing.

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.

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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Ducts in Dropped Ceilings

Guide

Guide describing method for installing ducts in a duct chase in a dropped ceiling.

New Whole-House Solutions Case Study: Nelson Construction: Hamilton Way, Farmington, CT

Case Study

Case study describing the design and testing of 10 high-performance homes in Farmington, Connecticut.

Air Sealing Duct and Flue Shafts

Guide

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