Fantastic Frame™ Soundproof Window Inserts
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Fantastic Frame™ Soundproof Window Inserts
Fantastic Frame Window Inserts are an industry leading soundproofing and thermal insulation solution custom built to fit any window. As used in both residential and commercial applications, the Fantastic Frame's patent pending frame technology significantly outperforms comparable window inserts in both noise reduction and thermal transfer. Create a more comfortable, quieter, and energy efficient environment with the Fantastic Frame!
Features
- Custom built window inserts are a nearly invisible solution for reducing both sound and heat transfer
- Durable design uses UV stable frame and acrylic (25+ year expected life)
- Reduce sound through your window by up to 80%
- High performance at all frequency levels (including low frequency noise!)
- Reduce energy transfer through your window by up to 60%
- 30-40% energy bill savings is typical for a home or commercial building that installs a Fantastic Frame in all windows
- Custom sizes and shapes to fit ANY WINDOW!
- Easy to remove and access primary window
- Proudly made in the USA
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Specs
Specs
| Insert Dimensions | Up to 72" x 120" without mullions (any size with mullions) |
| Frame Dimensions | 7/8" wide x 1" deep |
| Glass | 1/4" acrylic |
| Weight | 1.7 lbs per sq ft |
| Frame Colors | White or Brown |
| Paintable? | Yes |
| Mounting Method | Metal trim pieces and magnetic frame |
| Space Required | At least 1" of space to mount the insert |
| Removable? | Yes |
| Sound Transfer Reduction | Up to 80% |
| Thermal Transfer Reduction | Up to 62% |
| Indoor/Outdoor | Indoor only |
| Expected Lifetime | 25+ Years |
Material Testing
Material Testing
Sound Transmission Loss
| Window Assembly Type | Before FF Window Inserts | After FF Window Inserts |
How much noise reduction
is this? |
| Double Hung Window | 24 | 37 | ~60% reduction |
| Triple Casement Window | 27 | 44 | ~70% reduction |
| Storefront / Hotel Fixed Window | 33 | 46 (4.5" air space) 51 (6.5" air space) | ~60-75% reduction |
** Noise Reduction Note ** Most windows will be between 50% and 80% noise reduction. The exact amount depends on your existing window and the size of the air gap.
Prime Window Thermal Performance
| Thermal Test Type | Before FF Window Inserts | After FF Window Inserts |
How much thermal transfer
change is this? |
| U-value | 1.15 BTU/h*ft2*°F | 0.44 BTU/h*ft2*°F | ~62% reduction |
| R-value | 0.86 | 2.27 | ~62% reduction |
** Exceptional Thermal Results ** See this email screenshot from a happy customer who saved 70% on their energy bill!
| Tested Properties | Testing Method | Performance |
|---|---|---|
| STC Rating | ASTM E90 | 37 to 55 |
| Solar Heat Gain Coefficient | NVLAP Approved Lab | -4% to -11% |
| R-value | NVLAP Approved Lab | +43% to +114% |
| Flammability | ASTM D-638 | Self Extinguishing |
| Max Continuous Temperature | 190°F | |
| UL Rating (Frame) | UL Labs | UL 94 V-O |
| UL Classifications (Acrylic) | 94HB, HBE162, 647C, UV Light |
Installation Instructions
Installation Instructions
Common Product Uses
Common Product Uses
- Museum quality UV filtering acrylic available for historical applications
- Reducing energy usage in commercial and residential buildings
- Soundproofing and insulating historic homes
- Any window can have its soundproofing improved! Blocks sound better than any standard window and easy enough for a DIY soundproofing project. Great for street noise reduction in a home
- If you're looking into how to soundproof a wall on the cheap, the windows are the weakest point in most any exterior wall. For interior walls, there are a variety of ways you can soundproof a door.
- Commercial/retail/office buildings, hotels, condos, home offices, bedrooms, hospitals, doctor's offices, schools, universities, houses of worship, government and municipal buildings
Shipping Details
Shipping Details
Resources
Installation Guides
Sizing Guide

