Historic buildings are defined by their original architectural details, especially the iconic wood windows that portray craftsmanship, character, and history. For owners and preservationists, striking a balance between energy efficiency, durability, and historical integrity is essential. Kronenberger & Sons Restoration (KSR) offers insight into how storm windows can serve as an ideal solution.
1. Preserving the Soul of Historic Architecture
Original wood windows are one of the most distinguishing features of historic buildings. Their restoration should preserve not only façade integrity, but also architectural authenticity, environmental responsibility, and long-term cost efficiency.
2. Remarkable Energy Performance
Contrary to common assumptions, adding quality storm windows to existing wood windows can significantly improve energy efficiency:
- An old wood window paired with a storm window achieves about 15% greater energy efficiency than a brand-new replacement window.
- Energy analysis information indicates that combining a single-pane historic window with a storm window achieves a U-value of 0.50, quite a bit lower than the 1.10–1.60 U-values common to new double-pane thermal windows.
These improvements not only enhance comfort but also underscore the sustainable value of preservation over replacement.
3. Affordability and Longevity
- A basic off-the-shelf aluminum storm window (2023 price points of $90–$100) offers an approximate payback period of nine years, based solely on energy savings.
- In contrast, replacement windows often cost more upfront ($400 installed) and may never pay for themselves within their shorter 15–20-year lifespan.
- Moreover, installation of storm windows is less intrusive and helps prolong the lifespan of the original historic sash.
4. Environmental and Embodied Energy Advantages
Choosing storm windows over replacements offers enduring benefits:
- New windows require massive embodied energy, roughly 2.3 million BTUs for production alone—and take approximately 4+ years to pay back that energy, with total embodied energy payback taking over six years.
- By conserving existing wood windows, often 100+ years old and crafted from dense, durable old-growth timber, they reduce waste and landfill use while honoring material quality and craftsmanship.
- Restoration also supports local artisans and traditional trades, creating a sustainable, community-driven model rather than relying on mass-produced replacements.
6. Custom Solutions for Unique Needs
Kronenberger & Sons Restoration collaborates with partners like Allied Storm Windows and Mon-Ray Windows to deliver custom storm windows. Tailored to specific historic needs, whether operable or fixed, curved, multi-panel, interior-mounted, or featuring UV reduction.
Why Storm Windows Are a Smart Choice for Historic Buildings
Storm windows are a powerful ally in the quest to preserve historic architecture. They bridge the gap between maintaining authentic design and achieving energy efficiency. All while being cost-effective and environmentally responsible. For historic building owners, they offer a means to protect heritage and craftsmanship without sacrificing modern comfort or economic sense.
If you’re considering restoration, Kronenberger & Sons Restoration has the specialized expertise, custom services, and preservation-first philosophy to guide your project. Whether it’s weather stripping, storm window installation, or complete window restoration, investing in history is an investment in sustainability.