The restoration of a historic home requires a delicate balance between preserving architectural character and implementing modern performance standards. Nowhere is this challenge more evident than in the historic home restoration of an 1830s Greek Revival farmhouse. When Paul and Joanne Coons discovered an abandoned Greek Revival farmhouse in Upstate New York, the building was largely intact but suffering from decades of deferred maintenance. Listed in the Clifton Park Register of Historic Places, the house could not be demolished, and the owners embarked on a mission to preserve its antique character while transforming it into a net-zero energy home.
This article explores the methods, materials, and decisions that made this restoration successful, offering practical insights for anyone working on a historic property where preservation and performance must coexist.
Assessing the Historic Structure
Before any work begins on an old house, a thorough assessment of its condition and architectural significance is essential. The Greek Revival farmhouse presented both opportunities and challenges that shaped every subsequent decision.
Evaluating Original Materials and Condition
The Coonses found that despite the house having been vacant for a decade, its original structure was remarkably intact. Original mouldings with three different profiles remained in place, the vintage embossed tin ceiling survived beneath a dropped acoustical ceiling, and the original pine floors were still present in the primary bedroom. However, the property also suffered from frozen sawdust being the only thing holding up the roof in one section, along with the effects of years of water infiltration and neglect. The assessment phase revealed that while the bones of the house were sound, every system required attention.
The initial walkthrough also identified several character-defining features worth preserving. The original window sash remained functional in most openings. The front porch columns, though undersized from a later replacement, established the Greek Revival proportioning that defines the facade. The interior layout with a central hallway and balanced rooms on either side reflected the classical symmetry that gives this style its dignity. These observations formed the preservation brief that guided all subsequent work.
The Greek Revival Architectural Character
Greek Revival architecture, popular in America from roughly 1825 to 1860, is characterized by several distinctive features that set it apart from earlier Federal or later Victorian styles:
- Symmetrical massing with a side-gabled or hipped roof form, often with a wide frieze band beneath the cornice
- Full-height entry porches supported by prominent columns in the Doric, Ionic, or Corinthian order
- Wide, heavy cornices with returns that echo the pediment of a classical temple
- Simple, bold exterior detailing with minimal ornamentation compared to later Victorian excess
- Six-over-six or nine-over-nine double-hung windows with wide surrounds and often with lowered shutters
- Interior layouts featuring central hallways with balanced rooms on either side, reflecting classical symmetry
The owners recognized that preserving these character-defining features while upgrading the building envelope and mechanical systems would require careful planning and selective interventions. Every decision had to be weighed not only for its technical merit but also for its impact on the historic fabric.
Structural Repairs and Architectural Interventions
Every historic restoration confronts the reality that previous owners made changes that must be undone. The Greek Revival farmhouse had undergone what the owners called a “remuddling” in the 1960s, introducing incompatible elements that needed correction.
Correcting Past Remuddling
The 1960s renovations had added several inappropriate features that diminished the historic character of the property:
- Jalousie windows replaced some of the original double-hung units on the front facade, radically altering the appearance of the elevation
- A concrete-block chimney was added in a visually intrusive location, competing with the original masonry massing
- An attached garage interrupted the clean, symmetrical lines of the original massing and appeared as an obvious afterthought
- An acoustical dropped ceiling had been installed throughout the main floor, hiding the original embossed tin ceiling from view
All of these mid-century additions were removed. The jalousie windows were replaced with appropriately styled double-hung units that matched the original openings. The concrete-block chimney was demolished and the roof and wall patched to match the original fabric. The garage was taken down entirely, restoring the clean flank of the farmhouse. The dropped ceiling was torn out to reveal the stamped tin ceiling underneath, which required careful cleaning but was otherwise in excellent condition.
Raising Ceilings and Vaulting Spaces
One of the most significant architectural interventions involved the kitchen. The owners removed a wall separating the kitchen from the old summer kitchen and raised the ceiling into the attic space. The original 200-year-old ceiling joists were repurposed as collar ties, turned sideways and bolted through the rafters to hold the walls together. This approach served both structural and aesthetic purposes:
- Structural reinforcement – The repurposed joists, now functioning as collar ties, stabilized the roof structure and prevented wall spread at the ridge
- Increased volume – Vaulting the ceiling eliminated the cramped feel of the original low-ceilinged kitchen and created a more spacious, airy atmosphere
- Preservation of materials – Rather than discarding the original timbers, the owners found a way to keep them visible and functional, maintaining the connection to the building’s history
- Visual continuity – The exposed rough-hewn pine timbers became a feature element that anchors the kitchen design and tells the story of the building
This approach demonstrates a important principle in historic preservation: the best solution is often one that works with existing materials rather than replacing them. The repurposed ceiling joists now serve as both structural elements and architectural features, adding character that no new material could replicate.
Achieving Net-Zero Energy Performance
The owners set an ambitious goal: transform a drafty 1830s farmhouse into a net-zero energy home. Net-zero means the building generates at least as much energy as it consumes over the course of a year. This required a multi-pronged approach addressing the building envelope, mechanical systems, and renewable energy generation.
Building Envelope Upgrades
The most effective way to save energy is not to use it in the first place. The Coonses focused heavily on improving the thermal performance of the building envelope:
| Measure | Details | Performance Benefit |
|---|---|---|
| Exterior wall build-out | Walls extended by 3 inches to accommodate insulation depth | Increased R-value without sacrificing interior floor area |
| Closed-cell foam insulation | Soy-based closed-cell foam blown into expanded wall cavities | Air sealing plus high R-value per inch in a single application |
| Window preservation system | Original windows retained with magnetic storm panels outside and secondary glazing inside | Thermal improvement while preserving historic sash and frames |
| Ground-source heat pump | Vertical loop field with heat pump unit in basement | 300-400% seasonal efficiency vs. fossil fuel heating systems |
| Solar photovoltaic array | Roof-mounted panels plus remote pole-mounted ground array | Renewable generation exceeding total annual consumption |
| Solar thermal water heating | South-facing panels feeding an insulated storage tank | Reduced water heating energy demand by 60-70% |
It is worth noting that the owners used soy-based closed-cell foam and would not use it again, as it attracted rodents in their specific location. They recommend closed-cell spray foam insulation as a concept, but suggest rock-wool insulation as a preferred alternative for future projects. The wall assembly strategy itself remains sound: adding depth to existing walls and filling the cavity with a continuous air-sealing insulation layer is a proven method for improving thermal performance in historic structures without compromising interior finishes.
Mechanical Systems and Renewable Energy
The heating and cooling strategy centered on a ground-source heat pump, which uses the stable temperature of the earth to achieve efficiencies far beyond conventional air-source systems. The owners paired this with an induction range, Energy Star appliances, LED lighting throughout, and a solar-powered water heater. They also eliminated the clothes dryer, relying instead on natural drying methods to further reduce energy consumption.
The photovoltaic array consists of both roof-mounted panels and a separate pole-mounted ground array. Together, these net-zero construction techniques have proven so effective that the household generates more electricity than it consumes, even while charging two electric vehicles. The monthly grid connection fee is under $18, and the electric meter regularly spins backward. The owners describe their investment in solar panels as putting money into an asset that pays dividends, rather than into the stock market.
Interior Finishes and Period-Appropriate Details
Preserving the historic character of the interior was as important as the energy upgrades. Every finish and material was chosen to complement the 1830s aesthetic while meeting modern standards for health and durability.
Preserving Original Millwork and Mouldings
The house contained three distinct moulding profiles that were original to the 1830s construction. Where sections were damaged or missing, the owners had them replicated by a skilled millworker to match the original profiles exactly. The original pine floors were refinished rather than replaced, preserving the warm patina that only age can provide. The embossed tin ceiling, once uncovered from beneath the dropped ceiling, was cleaned and left exposed as a historic feature that anchors the main living spaces.
Selecting Low-VOC and Natural Materials
The owners made deliberate choices about interior finishes that prioritized health, durability, and environmental responsibility:
- Floor finishes – Vermont Natural Coatings products were applied to all wood floors. These natural, bio-based finishes proved extremely durable and emitted no urethane odor during application, allowing the owners to occupy the space sooner.
- Wall finishes – American Clay natural clay plaster was applied to interior walls. This material provides a unique luminous sheen and maintains a fresh, earthy scent even when the house is closed up for extended periods.
- No-VOC products – All paints, adhesives, and sealants were specified as no-VOC formulations to maintain healthy indoor air quality in a tightly sealed building envelope.
- Insulation lesson learned – The soy-based foam was the only material choice the owners regretted. For similar restorations, mineral wool or standard closed-cell polyurethane foam without organic additives would be preferred. Proper pairing with geothermal heat pump systems requires a healthy, well-sealed envelope to maximize the return on the mechanical investment.
The result is a home that performs like a modern high-performance building while looking and feeling like a well-preserved 1830s Greek Revival farmhouse. The owners report that their investment in solar panels has paid off financially, and the satisfaction of seeing the meter spin backward is matched only by the knowledge that they saved a derelict historic gem from demolition. The property stands as a proof of concept that historic preservation and net-zero energy performance are not competing goals but complementary objectives that can be achieved together through thoughtful design and careful execution.