Our aluminum 4-Season room is constructed using our 3″ thermally broken wall system which includes 1″double pane sliding or single hung windows with thermally broken frames in thermally broken extrusions. While you have fewer window size options, this wall system is much more thermally efficient than most other aluminum wall systems. Although no window can compare with a framed and insulated wall for R-value, this room can usually be heated or cooled efficiently in most climates.
Premium vinyl 4-Season room
Our newest product vinyl 4-season room and most thermally efficient system has a 3″ structural frame of 6005-t6 aluminum alloy covered with a heavy gauge vinyl sleeve. The windows are fully welded 7/8″ double glazed vinyl sliders standard with our 7-layer low-E coating system, argon filled and tempered glass. Our windows have an R-value of 4.25 and U-value of .24. This wall system is all pre-cut making installation extremely easy, and each window is custom sized to eliminate any verticle fill panels. We feel this is the best room on the market today.