1. Thermalized Aluminum Window

2. In addition to having double or triple insulated glass, along with other performance options such as Thermal E+™ and tinting, a Thermalized window offers another important feature. The window frame and sash frames are insulated against heat and cold conduction. This is done by separating the outside metal parts from the inside with a material such as polyurethane, greatly reducing the amount of heat or cold transferred through the frames. This feature is known as a thermal break or thermal barrier. How does a Thermalized window perform? Thermalized windows are manufactured from close-tolerance aluminum extrusions. All of our thermal barrier aluminum frames are heat strengthened by bringing the raw aluminum up to a T5 temper to increase both strength and rigidity. This allows us to build extremely large windows without affecting performance like most aluminum windows. They have lower air leakage and higher resistance to heat transfer than non thermal break windows. With double glazing, they will stop 26% to 38% of the heat lost through comparable wood windows made at local millwork shops.

3. A thermalized aluminum window performance is equal to or better than well-made wood windows. Thermalized aluminum windows surpass strict industry specifications. Air leakage with a 25 MPH wind blowing outside cannot exceed 0.375 cubic feet per minute (CFM) for every foot of weather-stripped window perimeter. Our 700 Series Double Hung allows only 0.06 CFM air infiltration – one sixth of the industry standard! Old, worn out windows often have rates of 1.5 or more, 25 times the air leakage of our best Thermalized aluminum windows!aluminum windows No window is condensation-proof. Even walls will “sweat” under high humidity. Windows do not cause condensation; they simply prevent moisture from escaping and provide a surface that allows condensation to be readily seen. If inside glass and frame surfaces on a Thermalized window show excessive moisture, you can be sure that moisture is also present in your walls and ceiling. Do Thermalized windows prevent condensation?

4. What is the recommended interior humidity level? The maximum recommended interior relative humidity ranges from 15% at -20ºF to a maximum of 40% at +30º. Many homes have been built “tighter” to conserve energy, leading to indoor humidity above the recommended levels. The best way to handle high indoor humidity is to vent the moisture to the outside. Bathrooms, kitchens and laundry areas should be vented with a fan, or by opening windows slightly when the areas are in use. If that does not help, a dehumidifier might be necessary. Special Shape Custom Windows As both the manufacturer and installer, there’s almost no limit to what we can produce. Almost any shape is possible, and we will custom make all of our high performance windows based on your designs. In an industry that’s brought up middle men installers who are overly attached to “standard sizes” and obscene costs for special orders, buyers have to beware which pieces of advice are “best for the customer,” and which are “best for the seller.” Of course, this also applies to traditional shapes at larger than common sizes. Many times, manufacturers are uncomfortable shipping very large windows across state/country, and installers therefore don’t have enough experience to want to work with them. Not the case here, as our crews work side by side with the very people who made the window to ensure its handled and installed properly.

5. Bold new designs or timeless traditional. We can help you realize your dreams. Our professional staff is ready to help you. These photos are a small sampling of actual jobs we’ve done in the past. We look forward to adding yours to our proud portfolio of beautiful work.

6. Contact Us Dallas Showroom & Manufacturing Plant J & M Glass Company, Inc. 8808 Empress Row Dallas TX 75247 (214) 630-5885 View Map View Map Fort Worth Showroom J & M Glass Company, Inc. 3461b Blue Bonnet Cir Fort Worth TX 76109 (817) 731-8886 Please Visit Us:http://www.thermalwindowsdfw.com/http://www.thermalwindowsdfw.com/