Using Flexible Compression Tubing

The tight seal between the Compression Tube and your window frame provides industry leading performance, keeping the cold drafts or heat at bay. Indow Window storm window inserts provide superior comfort. 





thermal-performanceTHERMAL PERFORMANCE


Our inserts have 94 % of the insulation of a standard double pane window! The interior surface of the Indow Window is much warmer than the inner surface of a pane of glass, so you’ll feel warmer even if the air temperature in both cases are the same.

** R Value measures the thermal resistance of a material and it’s effectiveness at keeping the outside out and the inside in.



noise-diagramBLOCKS NOISE

50-70% Decrease In Sound Penetration

An unexpected Indow Window benefit is the remarkable sound reduction. When placed over an operable single pane window, Standard Indow Windows dampen noise up to 10dBA, which equates to a 50% noise reduction. Acoustic Grade Indow Windows reduces noise by up to 18.9 dBA when placed over a single pane window, equivalent to a 70%+ reduction and allows you to sleep through the sounds of traffic, planes and trash collection.



carbon-footprintSAVES ENERGY & MONEY

A 19% reduction in natural gas consumption

Indow Windows recently completed testing at Portland State’s Green Building Research Laboratory.  The pilot results compare gas usage before and after installing Indow Windows in four Portland area homes, giving us some surprising insights and great data.




Indow inserts + single-pane data provided through independent testing conducted by Portland State University’s Green Building Research Lab. Actual Performance will vary depending on condition of window.