May 9, 2014

Hendricks residence

RESIDENTIAL ICF

Photo courtesy of WACA [enlarge]

The Fidalgo Island house was constructed with ICFs to insulate it from strong winds off Skagit Bay.

Location: Anacortes

Owner/developer: Hendricks family

Project team: Bell Construction, general and concrete contractor; Concrete Nor'west, ready-mix supplier

The owners and contractor planned from the start to use insulated concrete forms for the construction of an 11,000-square-foot house on the shores of Skagit Bay on Fidalgo Island.

The project also included a 1,000-square-foot ICF guest house and a 1,900-square-foot ICF shop building.

There were several considerations that made concrete construction the right choice the for project.

A major factor was that the site is on the bay and gets hit from heavy south winds all winter and a strong west wind in the summer. Wind loads, load capacity, window sizing and insulation were all part of the design. Noise, comfort and durability all played into the selection of ICF.

For the exterior finishing a stucco-type product was applied to the ICF system.

Concrete that resembles limestone was used for the living room fireplace surround and the kitchen range hood. Using concrete for this application gave the homeowners the look of Old World craftsmanship.

Patio areas were constructed in concrete with a hand-trowel finish on a pan deck-type form. This allowed the area underneath to be used for storage as well as for spa mechanical equipment.

Ceilings were sprayed with a closed cell foam and then drywall was applied for an inside-looking finish. The 12-person spa was craned on to a reinforced footing and then backfilled with controlled density fill. The concrete slab then caps over the rim of the spa with a pool-type edge detail.

The landscaping and driveway were major focuses for the project. A 200-foot-long concrete wall was placed along the property line to allow for the site to be leveled off. The lower parking area has a black slate stamp border with a colored broom finish body.

The main drive down to the house is a 22-foot-wide natural broom finish with mono-poured curbs. The home also has a half-basketball court finished in concrete.

The guest house has a patio at grade with a fire pit in the center. The finish on this patio is colored concrete with a sand finish.

The home also has a gun safe that is ICF-constructed with reinforced slab footings, ICF walls, concrete ceilings and a 3-by-7-foot safe door. The property also has a 14,000-gallon underground concrete water storage vault that provides groundwater and rainwater collection for irrigation.

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