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 19, 2010

Roof overhand sub-assembly

The Bruss guys thought up a crafty way to insulate & air seal the roof overhang using scraps of 3" XPS left over from the roof and less of the pricey can foam.


Cut back bottom sheet of rigid flush with wall.


Install nailer.


Install sub soffit.


Shoot a layer of can foam on top of nailer, in front of nailer & on top of sub soffit (basically everywhere).


Smush a 3" scrap of XPS into the foam.


Shoot some more can foam around the XPS scrap. (Dave is so happy!)


Install sub fascia board.


Screw into sub fascia board.


Screw through roof sheathing.


Ta-da.


They should be done with the final overhand sub-assembly sometime today.
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