The Hansen House Part 2: Foundation

Since HJLCMS broke ground on June 1st on the Hansen House, there has been a lot of progress on site.  We wanted to make sure that none of the trees were unnecessarily disturbed by the construction process so signs were placed at drip lines of the trees to protect the root systems. The new driveway was engineered to share a portion of the existing driveway to reduce the footprint of new construction.  Gravel was used because it is a permeable surface that allows rainwater to be absorbed and therefore naturally filtered. Once the driveway was complete, the crew excavated the area for the house and dug out the footers. The Hansen House is designed as an energy-efficient building.  One of the keys to an energy-efficient building is the use of high levels of insulation.  The concrete footers and block foundation both contribute to the super insulated slab and insulated slab ledge. Because heat is lost through foundation walls and concrete slabs, it is important to insulate them.  There is 2” rigid foam insulation along the perimeter walls of the block foundation.  The foundation is part of the house’s thermal envelope.  A clear penetrating sealer has been applied on all perimeter walls from the footers to the tops of walls to damp proof the foundation.  The insulated foundation contributes to the conservation of energy and heating and cooling costs and also eliminates potential moisture and mold problems. Check back for the next phase of construction.