This may have been one of my personal favorite projects of the year. The Pick job evolved from a ‘take Mass Save to the next level’ to a comprehensive whole house building retrofit. The house is a beautiful modest home in the historic Montague village neighborhood. The house style and structure necessitated some major decisions to be made ‘on the fly’ when layers of the walls were removed. This approach is ideal for many retrofits, especially in historic New England homes where components of the thermal boundary are buried behind 100 years of renovation or are simply not readily accessible.

We are very grateful to have worked with the client, Sally Pick, who is an advocate of building performance industry and a consultant in the environmental and energy conservation fields.

Case study written by Sally about this project.

CHP - Case Study_half fold_fin CHP - Case Study_half fold_fin2

For now, here are some basic photos. Thanks for looking.

Sections of the wall had very poor insulation. The walls connected with uninsulated rafter slopes. After fiberglass was removed, spray foam and cellulose was installed.

The wall connection with closed slopes show airbarrier flaws in an infrared image

This wall area fixed. Notice the spray foam of the rafter tails which reduces ice damming, seals the wall top plate, and stops air-leakage.

The basement walls were insulated with a relatively ‘green’, water based blowing agent, closed cell spray foam.

A vented crawl space ceiling gets foil face rigid foam board with cellulose dense-packed in the joist bays. Spray foam is used to seal the perimeter. We often take a ‘mixed assembly’ approach in this way to use the best performance characteristics of each material.