A Brief History

The project entails repairing the building at 335 Maplewood Ave in a manner that meets both preservation and sustainability goals. The building is the new location for Petersen Engineering, a firm that has been located in Portsmouth since 1992, and specializes in sustainable building engineering. We intend for this project to showcase techniques & materials that promote both preservation and sustainability and intend to share all aspects of the project locally and regionally through open houses, presentations, industry tradeshows, case studies and publications. We foresee this project being a valuable educational tool to demonstrate that preservation goals need not be compromised by sustainability goals. We have teamed with Bruss Construction who we know from past collaborations has exceptional experience and expertise on projects with the dual goal of preservation and sustainability.

The project received approval by the Historic District Commission on January 6, 2010 with construction scheduled to begin early February 2010.

The projected peak heat loss reduction is 85%.


Monday, April 5, 2010

1 screw holds up entire Bruss crew (620lbs)

Back on Feb 10, I went on a rant about how the screws holding the foam to the walls will not bend because of the compressive strength of the foam is so high. Check it out.

Today, Jared cut up some scrap Advantech and 3" Foam to build a little 1'x1' wall moch up and fired one screw into the center of it to test it out.

See what happened:



This was with 3" of foam. We are going to cut up some more scrap foam when it becomes available and try this same test with more foam.

Cool huh?

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