Secondary Window Retrofit SWR
Easily upgrade existing windows without removal or disruption while delivering the energy and comfort benefits of full replacement at a fraction of the cost.
Less is More
Reuse, retrofit, and upcycle. Don't replace.
The concept is simple. The innovation is in how it's done.
Less Materials
By preserving and upcycling the existing glazing system, we use ~70% fewer materials vs. window replacement, eliminating the cost of demolition and disposal of useful materials into landfills.
Less Time
Our low-carbon retrofits are pre-fabricated off-site for quality and ease of installation, enabling us to upgrade your facades and windows in no time and cut installation costs by up to 80%
Less Money
With no business and occupant disruptions and a faster installation process that requires fewer materials, INOVUES is fully cost-effective solution with up to 10x faster payback and higher ROI.
SWR Key Features = Real Benefits
The SWR system installs easily and quickly from the interior, providing minimal disruption to occupants and downtime to operations – reducing time, cost, and aggravation.
Unlike traditional solutions, INOVUES patent-pending, breathable system passively vents, eliminating excessive heat and moisture buildup in the insulating cavity, without dust or dirt ingress.
An option that causes no reduction of the daylight opening maintains the view to the outdoors while providing clean aesthetics.
Unlike “friction fit” systems, our industrial dual locks provide secure installation that prevents accidental dislodging from the existing window frame, which could cause injuries to occupants.
Existing glass & frame are thermally isolated with a polymer-based material to prevent thermal bridging. This allows the use of durable, commercial-grade aluminum framing with a high-quality finish to retain or improve the long-term value of the building envelope.
Two mounting options, “overlap” and “inset”, provide the needed flexibility to adapt to a wide variety of existing frame types without compromising aesthetics and thermal performance.
SWR Performance
2-10x added insulation
Up to 40% energy savings
Up to 25% reduction in air infiltration
-
Existing
+ SWR
+ SWR-IG
+ SWR-VIG
Glass
Glass
Glass
Glass
U-Value (Total)
Glass
R-Value (CoG)
SHGC
VLT
Single-Pane,
Clear
0.97 Btu/hr ft² F
5.52 W/m² K
1
0.73
0.76
Single-Pane,
Low-E
0.42 Btu/hr ft² F
2.39 W/m² K
3
0.41
0.38
Double-Pane, Insulating Glass, Low-E, Argon
0.29 Btu/hr ft² F
1.71 W/m² K
6
0.19
0.3
Double-Pane, Insulating Glass, Low-E, Vacuum
0.22 Btu/hr ft² F
1.18 W/m² K
13
0.21
0.27
The performance values shown above vary between the different glass options; U-Value (Winter): Total Rate of heat transfer; R-Value (Center-of-Glass): Resistance to heat flow; SHGC; CRF (Condensation Resistance Factor); VLT: Visible Light Transmittance; STC: Sound Transmission Class.
U-Value, Center-of-Glass (CoG) R-Value, Solar Heat Gain Coefficient (SHGC), and Visible Light Transmittance (VLT) calculated using methods set by the National Fenestration Ratings Council (NFRC) and the Attachments Energy Rating Council (AERC), together with the industry-standard WINDOW 7.8 and THERM 7.8 software by the Lawrence Berkeley National Laboratory (LBNL). U-value / R-value measures the insulating properties of a window. They are reciprocal: a lower U-value / higher R-value indicates better insulation. SHGC measures the amount of solar heat that enters the building through the glass. VLT measures the amount of visible light that passes through the glass — higher VLT generally translates to brighter, naturally lit interiors.
SWR Project Gallery
