Series 3000-T Thermally Enhanced Traditional Style Sliding Door
Superior Energy Efficiency: The entire frame and panels have been "thermally broken" for maximum energy savings. This polyurethane material is a fantastic barrier against heat and cold. The Series 3000-T combines the advantages of aluminum with the insulation performance of vinyl or wood.
Energy Ratings: In the Testing section of our product pages we list several test results with varying types of glass, from standard insulated glass to high performance glass.
Wedged Interlockers: Notice how the interlockers on all Fleetwood doors "wedge" into each other? This makes a rattle free union. Doors that do not will eventually leak more air.
Thermal Education: Aluminum transfers energy very easily. This has wrongly been considered a negative trait but the fact is that very little energy is lost through the frame material. Other materials absorb heat and cold into the frame, causing that material to fail prematurely. One might say that aluminum is a more intelligent window material in that it deals with such stress in a positive way by releasing the energy that would normally cause material failure as it does in vinyl and wood. Aluminum is thermally stable in that it does not swell and shrink when the temperature or humidity levels change. The fact is that very little actual energy is lost through the frame material.