

Their size, style, and placement determine if they’re appropriate to the architectural style and, to some degree, if the house will be a pleasure to be in. A good installation method is to use a closed cell expanded polystyrene foam with an R 15 insulation value around the perimeter of the window.When you roll up to a house for the first time, you can’t help but notice the windows. Don’t just focus on the window, focus also on the installation methods– While a windows’ efficiency is important the method and materials used around the window can either add or take away from the project.31 (offering a 36% – 58% efficiency improvement for only 10% more in initial purchase cost). This window option is usually only about 10% more costly than a standard double pane window but can improve (i.e. When the air between the two window panes is replaced with argon the window will be more efficient and also provides a sound barrier as well. Argon gas is a colorless, odorless and safe gas that is heavier than air. Use a low E glass and argon gas window system– Low e (or low emissivity) glass is a process of applying multiple layers of an undetectable metal coating to the surface of the glass to block out solar energy in the summer while retaining furnace heat and allowing warm solar rays in the winter.30 with the newest energy efficient window system.

57 (for a 3 1/8” thick glass block) to a. Depending on the style and thickness of glass block chosen their U rating can range between.
U VALUE VINYL DOUBLEPANE WINDOW WINDOWS
U VALUE VINYL DOUBLEPANE WINDOW HOW TO
In the article below we’ll provide some of the basics to understanding how to evaluate window energy efficiencies and what types of window systems can be used to lower future home utility costs and make a home more light filled and comfortable.Įvaluating Window Energy Efficiency – U & R values While many people focus in on looks and initial purchase price often the homeowner can make the best long term choice by focusing in on a windows’ energy efficiency as well (it’s estimated that anywhere from 20 to 30% of all home energy is lost through windows and doors). Not only do you want to consider their looks, function and cost it’s also crucial to know how energy efficient the windows will be. Pin U values of different types of windowsĬhoosing the best vinyl replacement windows or glass block windows can be tough.
