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.
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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.
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Customer Reviews
4.49 Average 1505 Reviews
Anonymous
WE just took delivery of the two window inserts we ordered. they both fit perfectly. The most difficult part of the process was me trying to hold the laser measuring device still while taking the diaginal measurment! The Indow team was helpful and the ordering process was catch free. the finished product is just as they described. once installed, you can not even tell that they are there. I will warn you, if you have larger sizes they will come in a pretty large packing crate/box to protect them so be prepared. The only reason for 4 stars insted of 5 is they have just been istalled and we shall see how effective they are at reducing cold air, but they fit so snug that I anticipate they will be very effective. Just in time too, because our area is in a low temp/low wind chill pattern at the moment.
Craig F
The Indow I ordered was a perfect fit. It looks great and is an extremely well made product. The ordering process was seamless.
Catherine J
Noise reduction by at least 50%! I cannot hear most car that drives by now. My bedroom is so quiet! Thank you!
Walter M
Easy to order and install.
Dianne F
Window inserts help with sound since I live facing the street and the highway
Dianne
This is a 5 star company from beginning to end. I purchased the I inserts in 2017 because the bedroom on the second story faced the street. These are very effective for street noise. Noticed a problem on one of the windows recently and they quickly took care of it due to their warranty. Customer service personnel are very helpful. The price of the windows was acceptable for top quality of sleep and less noise during the day
Charles C
Recently purchased the acoustic window inserts for a couple of old windows facing a busy street and they've made a huge difference in terms of noise reduction! The measuring process was relatively easy with the laser measuring tool that Indow sent and the windows were delivered faster than expected. Martin was easy to work with and we would highly recommend Indow to those looking for window inserts.
Dean C
Installed noise canceling acrylic Indow window inserts to deal with the road noise at my condo, 4 lane state road is 40 feet from the condo. Expensive custom fit, but oh my gosh, they cut the noise by 75%! Decibel meter app I trust shows a 6 Decibel noise reduction, average Db over 30 minutes. Turns out 6 Db is letting only 25% of noise through! I am one happy camper…
Harry T
The Indow team was great from start to finish! They were very clear about each step. After installing the inserts my home has been significantly while still preserving the fabulous city views. For anyone who lives in a noisy street or city like NYC I would highly recommend it. Leave the chaos outside and come home to piece and quiet.
Paula S
From start to finish, we were very pleased with our rep, Reed, and the other staff at the PDX will call! The inserts themselves are stupendous! We purchased six total for the noisiest, road side(s) of our home. The outcome was beyond our expectations! Not only did the three rooms that bordered the road become at least 70% quieter, the other end of our home did as well! I cannot recommend Indow inserts more! The technology makes sense to add the inserts rather than purchasing new windows. Great results and thank you! Paul and Paula Spilsbury
JD
Brian was very helpful & informative. He helped me order the correct windows for my needs. They were shipped with the utmost of care & arrived ahead of schedule. Ultimately, the Indow Windows have been very helpful in muffling unwanted noises & they have helped save on our energy costs. Thank you, Indow Window!
Cynthia M
Very happy with the reduction in noise. Easy to install and use. Great customer service.
Juli E
We are thrilled with our Indow window inserts! I'd been on the lookout for a more permanent solution to leaky windows in our third floor living space. I discovered Indow on social media but since then have learned of friends who'd had Indow recommended to them by their rennovation contractor. The entire process went smoothly with friendly reps at hand to talk through questions during measuring, etc. They fit perfectly and help us to maintain the beautiful design of the windows on our 100 year old home! Highly recommend!!
Jen F
Worth the money!
Elizabeth H
For townhouse living, this solved my problem with noise from my neighbor's with my kitchen window. A considerable decrease of noise indeed! Measurements were a bit frustrating so I recommend using a laser measurement device and following directions to use a string for the diagonal. They look great and were easy to push into place. I highly recommend as an alternative to buying a new window.