From Paper to Practice: Mansard Roof with Dormers
Design
We had fun designing the third floor addition with mansard roof and front dormer windows to meet Passive House standards in a Carroll Gardens townhouse. We worked with setback, proportions, and dormer trim detailing to ensure that the vertical addition fit into the neighborhood.
Meanwhile, we incorporated an airtight, insulated Passive envelope into the addition. We opted for Ecostar recycled rubber shingles in place of traditional slate and utilized Zola windows to maximize performance and lower embodied carbon.
After
Before
Upon completion, this passive house in Carroll Gardens contains another full story of living space while maintaining a cohesive presence in the neighborhood.
