SWe live in a rural log home. The top floor is an “A” frame that contains only the master bedroom and en-suite. It has floor to ceiling and wall to wall windows front and back. We love waking up in the morning to the sunrise and the deer grazing in the yard. The view is spectacular! The difficulty was that the bedroom became intolerably hot during the day, even in the winter. We didn’t want to ruin the view with curtains or blinds so we contacted Promark Window Film. Their representative, Graham, was very helpful. He explained all the options in both material and application and answered our many questions. We decided on a RS 20 Silver Reflective film. Installation was prompt and the workman friendly and tidy. The window film has made an extraordinary difference in the room. Temperatures are at least 15 degrees cooler upstairs in the daytime and the air conditioner is now able to stabilize the temperatures throughout the house. The ProMark Window Film was definitely a smart purchase and is adding significantly to our enjoyment of the home.”