Performance
With an optimized compact building mass, highly insulated walls and Zola high-performance windows, the building was designed to the Passive to Active House strategy, aiming at 95% efficiency over the build-to-code standard and incorporating all means of Passive House design. Up to 100% of the building’s electric energy consumption will be offset by a 6.6 kWh photovoltaic system, which includes all energy for the geothermal radiant heating and cooling system. Construction of the Barn House started in March 2018, with construction finalized in early summer 2020.
Fire Safety
In times of severe global climate change, Utah is especially affected by prolonged periods of draught and extreme temperatures during the summer and fall months. Stark forest and bush fires have almost become the new 'normal', with the fire season already extended by several months. As a reaction, the Barn House is protected by a continuous layer of non-combustible materials along its exterior perimeter: Öko-Skin concrete facade boards, metal roofing, aluminum exterior window cladding, concrete, stucco on concrete and glass. In tandem with a 50-feet fire zone strategy around its footprint, the Barn House will withstand wildfires much better than the standard residential building in the region, adding additional peace of mind to the building's energy and performance resilience. A MERV 14 rated filter in the ERV system keeps particles and other air pollutants outside.
Project Blackboard:
Design: March 2017 - Summer 2018
Construction: March 2018 - Summer 2020
Building size: 3,800 SF
Lot size: 1 acre
Direct construction cost: $1,300,000 / $342 per SF
Designed to Passive House to Active House Standard and Site Net Zero Energy Consumption
Architecture and Energy Performance Simulation: Atelier Jörg Rügemer
Client: L. Ogden, Salt Lake City
Structural Engineer: LR Nelson, Salt Lake City / Las Vegas
Geothermal System, Mechanical Engineering: Utah Geothermal, Tony Wardell
Photo credits: Lucy Call, www.lucycall.com; Richer Images, Paul Richer, www.richerimages.com