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IndowONE Product Data
Indow window inserts are an acrylic glazing edged with our patented Compression Tube that presses inside a window frame without requiring the installation of a mounting bracket.
| Performance Data | Single-pane Window | Double-pane Window | Indow insert + Single-pane |
|---|---|---|---|
| Sealing Out Drafts & Heat | .5 CFM-Very Drafty | .1 to .3 CFM | .024 CFM |
| Thermal Insulation (R-Value / U-Value) | R-1.0 / U-1.0 | R-2.0 / U-0.5 | R-2.3 / U-0.43 (Equivalent to Double-pane) |
| Noise Reduction | Baseline | 20%-30% Reduction from Single-pane | 50%-70% Reduction from Single-pane |
| Lead | No Issues | EPA lead containment regulations apply | No Issues |
| Visible Light Transmittance | 74% | 51% to 81% | 64% |
| Solar Heat Gain Coefficient | .72 | .42 to .75 | .57 |
Indow insert + single-pane performance numbers are from independent testing conducted by the Attachments Energy Rating Council (AERC). Actual performance will vary depending on the condition of the single-pane window and its frame depth.
Acrylic Types
All types come with Compression Tube color options: brown, warm white and black. Custom colors are available for large commercial orders. Call to inquire.
Standard Grade (STD)
Our baseline product. The clear nominal 1/8" thick acrylic panel provides a great balance of comfort, efficiency, and noise dampening at an affordable price.
Acoustic Grade (AG)
Reduces noise coming through operable single-pane windows by 18.9 dBa, which “feels,” subjectively, like a 70% reduction in noise. Reduces noise coming through double-pane windows by 10 to 12 dBA, equivalent to a 50% reduction. STC rating of 42-45 with double-pane windows. Available in Commercial Grade.
Commercial Grade (CG)
Have an extra abrasion-resistant coating to provide additional protection against scratching (moving and frequent cleaning). Safe to use cleaners such as Windex. There is no visual difference between the Standard, Museum and Commercial Grade acrylic.
Museum Grade (MG)
Protects furniture, carpets, and artwork by filtering 98% of all UV rays from sunlight coming through windows. There is no visual difference between the Standard, Museum, and Commercial Grade acrylic.
Sleep Panel (SP)
These panels block all light coming through your windows and provide the acoustic dampening and thermal insulation of Standard Indow inserts. Ideal for light sleepers, night-shift workers, newborns, and home theater audiophiles.
Privacy Grade (PG)
Translucent acrylic diffuses light transmission while blocking details and defined shadows. Great for bathrooms.
Maximum Sizes
4x8 Sleep Panel, Privacy 6x8 Museum 6x8, 5x10 Standard, Acoustic, Commercial, Commercial Acoustic. Call to inquire about larger sizes and Mullion Kits. See Mullion Kit Product Sheet for details. Skylights are limited to 2x6 or 3x3.
Acrylic Weight (Approximate)
Nominal 1/8" = 0.72 lb./sq. ft. Nominal 1/4" = 1.45 lb./sq. ft.
Color Options
The Compression Tube is available in brown, light linen white, and black. Custom colors are available for large scale orders. Call to inquire.
Compatibility
In order for Indow window inserts to fit properly there must be an unobstructed flat surface perpendicular to the window pane with a depth of at least 5/8" that runs the entire perimeter of the window. We call this Frame Depth.
Common obstructions are inset window treatments (blinds), hardware, hooks, locks, and hinges. Blinds need an extra 3/5" gap between the insert and your window frame.
Solutions for less than 5/8" Frame Depth: In some cases, where there is less than 5/8", removing or replacing molding or installing a jamb extension can create room for the Indow inserts to fit. If the frame depth is just under 5/8", clear swivel clips (G) can be attached to the window frame to hold the Indow insert in place (see below). For complete solutions see our Frame Fit Kit.
Product Features
Acrylic Glazing
A custom cut pane of acrylic forms the main component of an Indow insert and is available in a variety of grades to meet performance needs.
Air Space
An insulating layer of air between the existing window pane and the Indow insert. There needs to be ½" between the window pane and the insert, but 1-4" is better for acoustic performance.
Compression Tube
Silicone tubing with an ABS carrier around the acrylic glazing creates a tight seal and holds the Indow insert firmly in place. It is impervious to heat, cold, UV radiation and maintains its spring indefinitely.
Additional Features
Corner Cut Out
A piece of tubing cut from each corner to prevent buckling. This faces out and is not visible from the interior. The elbow-shaped corner insert can be removed for flexible adjustments.
D-Ring
A pull-ring is attached 4" above the lower left corner of the insert to aid in removal. Silver d-ring used for white tubing and black d-ring used for brown and black tubing.
Safety Chains
Used on windows larger than 8 sq. ft. to prevent the Indow insert from falling out of the window frame in the event of high wind pressure. The Safety Chains are inconspicuously anchored to the window frame by one small screw. Safety chains are not included on some Specialty Shaped windows.
Skylight Safety Hardware
Required on all skylight windows, using our swivel clips or retaining pins from our Frame Fit Kit.
Egress
Indow window inserts comply with egress regulations. In an emergency, occupants should be able to quickly remove the Indow inserts without a tool. In a young child's bedroom, we recommend leaving one window bare with no insert installed.
Storage
Many Indow window inserts can be left in place year-round with occasional removal for cleaning. If an Indow insert is removed for an extended period, proper storage is essential. For example, do not lean the insert or store in a way that compresses the tubing or bends the acrylic. See ‘Indow Care Guide' for complete storage and product care instructions.
Maximum Temperature Range
Indow inserts should not be exposed to temperatures above 160°F (71°C) for continuous duration, or 180°F (82°C) for short, intermittent periods of time.
Indow For Your Windows
- 1
Request a Free Estimate. We'll provide you with a preliminary estimate based on your basic window dimensions. It's quick and easy!
- 2
Measure your windows with our easy-to-use laser measurement kit. We'll guide you through the simple process, ensuring a perfect fit.
- 3
Customize your inserts to match your needs and your aesthetic, with tubing colors that seamlessly blend into your space.
- 4
Transform your space with custom-crafted inserts shipped directly to your home, ready to fit perfectly in your windows.
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Trusted Since 2010
Indow has insulated more than 23,000 buildings - helping reduce carbon emissions by nearly 200,000 tons - and creating comfort across the US & Canada!
Reviews
Excellent
4.50 Average Rating
1547 Reviews
We ordered the Thermo insulation inserts for our cabin off the Blue Ridge Parkway in VA. The windows are old and drafty and with the wind and the cold that has happened this year, the inserts have really came through. We used to see the curtains move when the wind was blowing hard and the cold would come right through the windows. After installing the inserts, which was so easy, there is a night and day difference with the window inserts and the house is actually warmer and the heat is not running constantly. These inserts have saved us thousands of dollars in window replacments and you can not even tell that the inserts are in the windows. Thank you Window Inserts for all your help.