March 7, 2011
Nation's Building News

The Official Online Newspaper of NAHB

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Floor Plans: Systems-Built, Eco-Conscious Lakeside Retreat Born of Catastrophe
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Lakeside Green Cottage

From catastrophe that befell a 100-year-old cottage rose an award-winning panelized vacation retreat along the shore of Lake Erie in Lakeside, Ohio — a model of energy efficiency and sustainable building that also retains the character of its predecessor.

Frank and Brenda Baker had spent more than 15 years enjoying summers with family and friends in their Lakeside century-old cottage. But in June 2009, a tree came crashing down on it, damaging the cottage so severely the family’s only option was to have it demolished.


The resurrected vacation cottage blends new building technology with traditional charm.

But the loss also created opportunity, and the Bakers decided to replace the cottage with a completely new, next-generation home that they could enjoy for years to come.

Lakeside Cottage 2.0 — Blending SIP Construction With Mortise and Tenon Timbers

Manufactured by Riverbend Timber Framing and Insulspan, and built by Dearth Contracting of Bellevue, Ohio, the home incorporates the latest green systems-built technology — structural insulating products from PFB Corporation for the shell, Insulspan structural insulating panels (SIPs), Advantage insulating concrete forms (ICFs) and Plasti-Fab Durofoam insulation — providing the home owners with a super-tight building envelope that keeps conditioned air in and vastly reducing energy use — and energy bills.

Construction on the cottage didn’t begin in typical systems-built fashion. In fact, it got off to an old-fashioned start with the frame built of traditional mortise and tenon timbers and erected by hand — barn-raising style.


Riverbend Timber Framing used old-fashioned barn raising techniques to install the cottage's framing.

“A timber-frame raising combines a 500-year-old tradition of fine craftsmanship with 21st-century technology,” said Frank. “It’s an amazing process, and you don’t get the chance to see it too often.” 

Updating the Old With a New, Open Floor Plan


An open floor plan was incorporated to enhance usable space.

The new floor plan updated the lower level by opening the kitchen to the living and dining area to create a sunlit great room that leads to additional dining space on a covered patio.

The new three-bedroom cottage also reused materials from the original home wherever possible. During demolition, the Bakers salvaged the staircase, banister and spindles; bead board paneling; red pine floor planks; interior doors; bathroom fixtures and some kitchen cabinets — all of which were installed in the new home.

Not Only Blending Old and New — Reusing Old

Designed by Dennis Feltner, an advocate for eco-friendly design, and built by Dearth Contracting contractor, an NAHB Certified Green Builder, a preliminary assessment of the construction plans indicate that the new should qualify for certification under the National Green Building Standard at the Emerald level, the highest and most demanding level offered.

The Bakers have renamed their award-winning and energy-efficient replacement home the Lakeside Green Cottage.


Rafters and salvaged flooring helped retain the character of the original vacation retreat.


Plenty of building materials, including this bannister, were salvaged from the original cottage and resused to finish its green replacement.


Blueprints
Click for larger image.


Timber frame plan
Click for larger image.

Sustainable Features and Specifications

Designed for Efficiency

  • Enhanced floor space through liberal use of open space
  • Minimized wall and roof area to floor space ratio
  • Oriented roof for maximum year-round solar gain for photovoltaic power generation and solar hot water heating
  • Roof overhangs designed for summer shading and winter heat gain
  • Underground power feed to minimize hazards
  •  Storm/storage cellar
  •  Handicap accessible first floor bath and first floor bedroom option to enhance long-term use

Construction Techniques

  • Recycle bins segregated waste during construction
  • Re-usable materials salvaged during teardown
  • Structural insulated panels (SIPs) for walls — 6"; and roof — 10"
  • Recyclable EPS foam core
  • Prefabricated in factory to minimize waste
  • Optimized SIP yield by computer layout provided airtight construction

Insulated Concrete Form Foundation

  • Reduced concrete required with traditional construction
  • Provides R-20 insulation and airtight construction

Heat Recovery Ventilation (HRV) System

  • Provides fresh conditioned air supply
  • Provides bath ventilation
  • Recovers heat from exhaust air
  • Paddle fans used in lieu of air conditioning

Salvaged Items

  • Heart pine tongue and groove flooring from previous cottage
  • Interior doors and front door from previous cottage
  • Stove from previous cottage
  • Claw-foot tub, pedestal sink and toilet from previous cottage
  • Douglas fir timber frame
  • Door hardware

Eco-Conscious Items

  • VOC-free interior paint
  • High-performance low-e insulated windows
  • Engineered wood construction
  • Low volume flush toilets
  • Rain barrel to capture rain for irrigation
  • Energy Star refrigerator, dishwasher, clothes washer and dryer, and flat screen television
  • Tankless, high-efficiency water heater
  • Low-flow shower and faucet heads
  • Metal roof of recycled steel
  • Water-barrier house wrap
  • Felt paper interlayer with shingles for durability

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