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Breathable Secondary Window Retrofit (SWR) System
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Easily Upgrade Non-Operable Windows from the Interior Without Replacement
Patent-Pending Interior Easy-Retrofit System
Breathable
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Uniquely engineered solution eliminates dust and heat build-up that could cause thermal stress, fogging and condensation
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Installs quickly and cleanly from the interior without having to drill or alter any parts of the existing window system
Elegant
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Ultra-slim profile maintains the daylight opening
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Available in multiple color options to match the original framing
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Tailored to the unique existing window conditions
SWR Performance
2-10x added insulation
Up to 40% energy savings
65%+ outside noise reduction
Existing | + SWR | + SWR-IG | + SWR-VIG | |
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Glass | Single-Pane, Clear | Single-Pane, Low-E | Double-Pane, Insulating Glass, Low-E, Argon | Double-Pane, Insulating Glass, Low-E, Vacuum |
U-Value (Total) | 0.97 Btu/hr ft2 F, 5.52 W/m2 K | 0.42 Btu/hr ft2 F, 2.39 W/m2 K | 0.29 Btu/hr ft2 F, 1.71 W/m2 K | 0.22 Btu/hr ft2 F, 1.18 W/m2 K |
R-Value (CoG) | 1 | 3 | 6 | 13 |
SHGC | 0.73 | 0.41 | 0.19 | 0.21 |
VLT | 0.76 | 0.38 | 0.3 | 0.27 |
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