The project is a 950 sf addition to a 1905 Beacon Hill residence. Central to its expanded program is a new great room (kitchen/dining/living) which opens entirely to the outside via a 36 ft. long operable window wall reestablishing the home’s relationship to its surrounding context.Tectonic ExplorationThe key tectonic focus of the project was the cedar rain screen. Through a series of rigorous detail refinements and material modulations it seamlessly transitions from a normative cladding system to a veil-like screen. In this way it moves beyond simple function and becomes integral to the reading of the project’s form and its relationship to the existing house.Key DetailsVeiling – By adjusting the density of slats the rain screen becomes a veil-like condition serving multiple functions. Alternating slats run in front of select window openings to provide privacy and a secondary condition of transparency. Over sizing the battens and introducing an integral steel balustrade support allows the rain screen to continue past the building enclosure to become a guardrail. Similarly, the rain screen continues past the shed roof of the upper story to form a parapet screen reinforcing both the rectilinear geometry of the new construction and the relationship between the new and old rooflines.The Corner – A typical corner detail was developed out of the cladding’s inherent tectonic qualities. By interlocking the 1x2 slats at the corners, the rain screen becomes a more complex wrap of the building’s form and the scale of its individual components are celebrated.