Radiant Floor Heat

Huppert remodel / addition

Located in the Fremont neighborhood of Seattle, this narrow, three story house has a magnificent view to the Olympic mountains.  The project added a two story Mother in Law (ADU) addition for a second family to rent. In between, a new skylit entry hall features a pond fed by rainwater from the addition roof.

Though similar in appearance to the main house, the ADU incorporates more progressive construction techniques than its 20-year-old parent.  ICF stem walls bear on footings of concrete mixed with 43% flyash.  Walls and roof structure are SIP insulated sandwich panels, and cement board siding is installed over a rain screen.

Heat is provided by a hydronic radiant slab below and a single fan coil unit above.  The roof gutters gather water in reused wine barrels for irrigating the yard.  The existing garage became a demonstration site for Seattle's eco-roof initiative.  Certified Built Green 3 Star.

Dennis-Burgess remodel

Too cold in winter and too warm in summer, this sunroom was virtually unused by the owners except for storage. Thermal comfort became the primary challenge in transforming the space into a recreation room for a growing family. Western sloped glazing at the roof was removed to prevent unwanted solar gain. A new wood ceiling lends a warm feeling and harmonizes with the existing wood frame structure. The eastern slope of the roof, meanwhile, remains as glass to maintain natural light throughout. New radiant heat tubing in a new gypcrete topping slab provides heat to the space in winter. In summer, new solar powered exhaust fans installed near the ridge of the existing gable roof allow warm air to rise and vent to the outside.

The bi-level space includes a family room below and game room on a raised platform above. A gear room is also provided for storage of equipment including snowboards, kayak, and bicycles. Partial height walls at the new game room were removed for a more spacious feel. The wall to the existing adjacent dining room was also eliminated, creating a seamless transition from the remodel to the existing home. New metal railings at the game room and existing basement stair maintain openness and add a modern touch.

Harman / Shapiro bath

Half of the main roof of this existing house in Seattle was lifted just enough to create a new master bathroom and dressing room.  The entire bathroom floor is sloped to the shower drain and is finished with large slabs of slate recycled from classroom chalkboards. 

Under the floor and behind the walls of the shower are radiant heat tubing.  New skylights brighten the open double shower, and the soaking tub has a view out the row of new windows.  All the green tile is made from 100% recycled glass.

Kushner / Klem cabin

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New custom vacation cabin in the mountains near Leavenworth, WA.  Two bedrooms, two baths plus sleeping loft.  Nestled in the forest, the simple form and honest materials of this cabin lend a rustic feel.  The great room at one end has a vaulted wood rafter ceiling and French doors that open to a generous porch that overlooks the Wenatchee River.

Features include radiant heated concrete floors, an indoor / outdoor wood burning soapstone fireplace, SIP roof panels, metal roofing, and a deck with a hot tub. 

Larson residence

New custom house in Tukwila, WA.  Two bedroom, two baths plus study loft with attached garage.  All rooms except the loft are on one level enabling aging in place, as well as visits by the owner's brother who is a wheelchair user.  The loft and adjacent roof deck have views in all directions to the surrounding mountains and to downtown Seattle.

Green features include double stud walls, radiant floor heating, a heat recovery ventilator, solar cool metal roofing, a 3 kW photovoltaic array, a planted roof, and a remarkable 95% construction recycling rate.  Certified Built Green 5-Star.