A Passive House Design (with a Few Curves Thrown In)

passive house designUnlike many panelized home builders who enclose their home shells using standard XPS and EPS foam core SIPs exclusively, Bensonwood builds many of its own structural, insulated wall and roof panels to realize the visions of its in-house design team and outside architects alike, while reducing waste by eliminating cutouts for doors and windows, which are not recyclable and end up in landfills.

Our walls feature dense-pack cellulose for insulation (a renewable, recycled product), and can be easily upgraded to extreme R-Value and air tightness for Passive House levels of performance. They also incorporate our Open-Built® chases for easy access to wiring and plumbing.

passive house curvesPerhaps best of all, our custom panels can accommodate curved walls and join complex, compound roof pitches to realize the contemporary designs of even the most innovative architects. One such Passive House design, by Jonathan Knowles and Laura Briggs of Briggs Knowles Architecture + Design, is a strategically sited home on a wooded lot in the Hudson River Valley of New York. Passive House is a rapidly emerging standard requiring that buildings use extremely small amounts of energy for heating and cooling.

The striking 3-bedroom, 2.5-bath house re-imagines the often utilitarian designs of the Passive House vernacular with its own unique curvilinear aesthetic, open space plan and multi-level views.

passive house walls panelThe first-floor plan includes a living area with a wood stove and screened porch, a separate kitchen and dining area, 2 bedrooms, 1.5 baths, a mechanical room, and a polished concrete floor. The dining area and one of the bedrooms are built into the curvature of the outer wall design, creating interesting interior spaces and angled wall partitions.

The second-floor plan has a generous, curved master suite complete with a large walk-in closet, sauna, bamboo wood floor, balcony, and dramatic, cantilevered porch. Rounding out the second floor is a large playroom open on one end to the living area below.

Bensonwood delivered and rapidly raised the home shell in the middle of winter, with R-49 roof panels and R-35 wall panels pre-installed with Zola triple-glazed windows. From there, the on-site builder, John Hommel of Ashley Homes, added additional layers of insulation to easily bring the house up to Passive House levels of performance.

A Classic Barn for a Classic Car Enthusiast

elevation of classic car garageAre you one of those people who owns a classic car and longs for an appropriate place to keep your dream machine? That was the impetus behind one car enthusiast’s desire to physically connect his passion for collectible automobiles to his existing 1930s Delaware residence. The owner, who has an existing garage for his family cars, tools around in a ‘76 Triumph TR6 and hopes to acquire more vintage cars once his new timber frame car barn is completed next month. The result will be an architecturally true barn and connector addition that can drive home, literally, his automotive passion.

The barn and connector were designed by Patrick McDonough, of John Milner Architects, to integrate and reflect the style of the existing main house while adding to the majesty and proportion of the façade.

classic car garage elevationBensonwood was hired by the owner/builder, a repeat client, to fabricate and raise the free-standing timber frame barn shell. The lengthy connector joining the house with the barn will be site-built by Dewson Construction Company, a Delaware-based general contractor and construction management firm.

The car barn, with four bays and an epoxy-painted concrete floor to showcase the vehicles, will be a traditional design, with a single, 28-foot-long glulam girder to achieve a post-free opening to the shed bump at the rear of the building. Roof trusses on either end of the barn will have straight bottom chords, with three arched glulam bottom chords on the trusses in between, defining the vaulted space. The structure includes a central king post with decorative and structural steel reinforcement plate custom fabricated by Bob Taylor of Alstead, NH. A multi-purpose loft with ladder at one end of the structure will add useful square footage to the plan.classic car garage interior rendering

CAD DRAWING vintage auto barnTo integrate the architectural style of the barn with the main house, an eight-sided “lantern” cupola will be stick-built atop the barn by a local company to match the cupola on the main house. In addition to its unifying aesthetic, the copula will allow in natural light to illuminate the timber frame interior and future car collection. Dewson Construction will then finish the barn with a brick exterior to match the main house.

The classic car barn, currently in fabrication at our Blackjack Crossing facilities in Walpole, NH, is slotted for a September 15 raising, with the complete weather-tight shell installed within a week’s time.

Contemporary Polynesian Pool House on the Charles

polynesian pool house

Photo by John Linden

A young couple with children asked Charles Rose Architects to design a “contemporary Polynesian hut” for their property southwest of Boston on the Charles River.

timberframe pool house roof

The design called for indoor and outdoor sitting and dining areas; kitchenette; stainless steel outdoor shower; bath/changing area; 1,500 SF deck with in-ground hot tub; and a fire pit with built-in seating. The architect carved out one corner, creating a covered, but open and airy, outdoor lounging area.

Everyone agreed that the new pool house should be wood construction — primarily to match the look and feel of an earlier project the architects designed for the clients, a wood-clad “play barn” with two large rooms, divided by an outdoor space framing views of an adjacent pond. That’s where Bensonwood came in.

pool house interiors

Photo by John Linden

pool house timberframeOur timbered Douglas fir frame supports an asymmetric hip roof whose peak is pulled off-center so that the pool house subtly connects with the geometry of the existing play barn. Our timberframer C.J. Brehio was the job captain, and did a masterful job executing complex compound joinery. Custom concealed steel connections were also used throughout the building. Western red cedar lends rich, warm hues from exposed beams, custom doors and millwork.

complex compound joineryThe stainless steel shower structure was was a built by Alstead, NH welder and metal sculptor Bob Taylor and has a unique sand blasted finish and unique hardware such as flush mounted tapered screws and a big piano hinge for the door.

Other wood used includes: mahogany for the windows; ipe (pronounced “ee-pay,” aka Brazilian walnut); and bamboo. See more photos on our Houzz page here.​

charles river pool house

Photo by John Linden

On the Boards: Cape Cod Pool House

cape cod pool house

In keeping with this month’s “Everyone into the Pool” theme, here is a charming little pool house we are helping fabricate on Cape Cod.

Designed by Rebecca Elsy Ribeiro of D. Michael Collins, Architects, the energy-efficient building features classic colonial carriage house styling with cupola and a sheltered overhang.

Bensonwood is crafting the timberframe, insulated wall and roof panels, and installing the Marvin Ultimate windows and a Marvin outswing bifold door. The timberframe consists of Douglas fir glulam timbers for the main structure and for the exterior timbers​.

Kenneth Vona Construction, a company that very much shares Bensonwood’s values, will be the builder. KVC is not only one of New England’s oldest and most respected custom builders, it is also one of the greenest.

pool house elevationsTheir ideal six-sided building envelope is one that breathes, insulates against losses, sheds water away for sustainability and remains energy efficient and reusable. Like Bensonwood, KVC believes a commitment to environmental responsibility results in immediate payback and comfort.

timber frame design for cape cod pool houseD. Michael Collins, Architects is a small, but high-quality design firm established in Natick, Massachusetts, in 1987. They specialize in new custom homes, additions and renovations, small scale commercial, institutional and historic restoration projects.

Most of the firm’s projects are located in Massachusetts, but they also have projects in Maine, New Hampshire, Vermont, New York, Colorado, Florida and the Caribbean.

We’ll profile more design-build collaborations with D. Michael Collins, Architects and Kenneth Vona Construction in the months ahead.

1st evoDOMUS – Bensonwood Project Underway

evodomus rendering

Architect’s Rendering by Alexander Kolbe

When husband and wife architects Alexander and Michelle Kolbe, co-founders of evoDOMUS, a Cleveland-based firm, wanted to design and build high-quality, sustainable homes in the U.S., they went looking for a manufacturing partner who could match the quality of homes they built in Alexander’s native country of Germany.

They sought a montage homebuilding company of the caliber of the venerable Huf Haus and Baufritz, Germany’s leading off-site building companies, which helped establish off-site panelized building as the primary construction methodology throughout Europe. Both companies are more than a century old and, like Bensonwood Unity Homes, combine timber framing influences with advanced design and high-performance building.

However, the Kolbes wanted a more personal connection to the client through the entire process—the level of attention a smaller company could provide—to reduce the stress homeowners often associate with a custom house project, such as designers not tuned-in to their clients’ needs, unreliable contractors, as well as schedule and budget overruns. After thoroughly researching high-quality panelized builders, fabricators and timberframers, the names Tedd Benson and Bensonwood kept popping up. So Alexander got on the phone and, much to his astonishment, Tedd picked up.

Upon hearing of the Kolbes’ high standards and montage building interest, Tedd replied, “That’s exactly what we’re doing!” A meeting with Tedd and project manager Hans Porschitz followed and it was soon apparent that the synergies and shared values of the two companies were aligned. A relationship was established: Bensonwood would fabricate the evoDOMUS home shells.

Now, the first joint project between evoDOMUS and Bensonwood is underway in Fairfield County Connecticut: a 5,000+ SF 4-bedroom Bauhaus-inspired modernist home in the “Cloud” Series of evoDOMUS homes. Strikingly original and family-friendly, Cloud is also inspired by current Mexican and Spanish interpretations of modern residential architecture. Customized to their clients’ needs, the home’s clean lines, contemporary materials and use of advanced building science are all characteristic of evoDOMUS home designs.

evodomus elevation

East & West Elevations

Designing the home for its two-acre site had its challenges; its wooded setting with wetlands, an awkward slope and rock ledges all needed careful  consideration. In addition, the home had to incorporate passive as well as active solar design, requiring precise siting along with design elements such as a south-facing second floor loggia to shade the first floor in summer months.

The Kolbes’ strong focus on sustainability prompted the use of triple-glazed Loewen windows and a Zender Energy Recovery Ventilator, which recovers up to 90% of the energy of the extract air to warm the incoming fresh air, saving on heating costs. The air distribution system then channels the optimally tempered fresh air to individual rooms as needed. The exterior is clad in Resysta siding made of rice husks, common salt and mineral oil, which makes it both environmentally friendly as well as extremely weather resistant against sun, rain, snow or salt water. Resysta siding also requires minimal care and offers the look and feel of wood and can be painted.
evodomus logo

The home has 4,100 SF of living space with 2 stories above grade and a 900 SF finished basement and 924 SF garage. Off the garage are a mud room, a half bath and a yoga fitness room. The first floor has an open great room with living and dining areas adjoining another open space with a kitchen and family room. Rounding out the first floor is a bedroom/study with adjacent bath. The second floor plan includes the master bedroom, three additional bedrooms (each open to a long balcony), a family bath, a study and a laundry room.

evodomus floor plan

First Floor Plan

EvoDOMUS uses low or no VOC paints and finishes in their homes and only formaldehyde-free materials. Material selections consist primarily of products with high-recycle content, as well as FSC certified woods and bamboo.

Alexander and Michelle Kolbe wanted to offer their customers not only the highest quality, sustainable homes available, but an excellent experience as well. By partnering with Bensonwood, evoDOMUS could put its resources into delivering superior design, customer service and care, rather than making investment in fabrication facilities, with financial partners and the loss of control and client interaction that would imply.

By maintaining that control, evoDOMUS is able to fulfill its mission of making homes as beautifully designed and high quality as German cars—with a customer experience to match.