A:  Hi John and thank you for your inquiry. This product is to be installed on the interior of the window. Application on the exterior will void the warranty as it is not suited for outdoor weather elements.

A:  Hello John and thank you for your interest in Gila Window Films. If you are looking for our best performing Heat Control film, we would recommend the Gila Heat Control Titanium.

A:  I would not go for the highest reflection since the room will darken a bit too much. The 91-95% range is more than sufficient. I would try the highest level one on a small window to see if it is OK with you to have the darker one before doing a lot of windows. Whatever you decide, it is worth it since you also stop the UV effect on painting and other color sensitive items.

A:  Hello Joseph and thank you for your inquiry. If you are looking for our best performance of heat rejection, we would recommend the Heat Control Titanium product.

A:  Thank you for your inquiry. In the Gila Heat Control lineup, this product, the Heat Control Light will transmit the most light. This is measured in Visible Light Transmitted (VLT). This is how much light is transmitted through your windows. The lower the number, the darker the film, and less light that is transmitted. The VLT on this product is 42%.

A:  The Gila film does not darken the room that much, you barely notice it. However, it does cut down in heat coming in (good for summer months, bad for winter months!) The best benefit is the UV protection for your paintings, pictures, and possibly for your skin. There are different levels of UV protection. I would stay away from the 99% UV protection since it darkens much more (better UV protection at the cost of losing the brightness.) I would try one window to see if you like it. We used the mid-range (somewhere around 92-95%) throughout the house and are very pleased with it. Good luck.