The new combination of these two technologies has created new benchmarks for home insulation and energy conservation. There they are always testing new film products at their outdoor testing facility. Providing the highest quality products for you at the lowest possible prices and conserving energy on a global scale, that is the Solarfilm Company mission. All our films have the UV inhibitors in the adhesive, so all of our films have the same UV reduction properties. As the adhesive layering may vary slightly from master batch to batch, there might be variations in UV filter amount, but only unnoticeable gradations.
Most films actually keep out approx.
If someone wants to achieve total UV reduction, then we would suggest that they apply 2 layers of 2mil clear, or any combo of 2 films layered. That would block approx. I would think that the film would have to go on the outside, or else the windows would heat up. Bottom line, if the windows are made right and were installed correctly then you can do it, but if the windows are low quality or if they were installed too tight in the frame, or if there is a defect on the edge of the glass, then extra heat may trigger a crack. When we go to estimate a job, these are the things that we look for, but for an unexperienced person to decide this, all that you can do is evaluate the condition of the house.