Installing the Spring Bronze weatherstripping on our freshly rebuilt sash windows was a really good idea. Even though our winter this year was short, we did have a few good cold spells and they were all accompanied by wind. The Spring Bronze eliminated any drafts that were slipping through the sash and made the entire upstairs much more comfortable! The best part about using this material is that it’ll last a lifetime. If it ever stops sealing properly, all I need to do is grab a putty knife and