Quite simply, these are the strongest insulating windows and doors we've ever seen. For starters, our frames are much heavier than most. Alcoe uses a ridge heavy-gauge, high-tempered aluminum-magnesium alloy. Compare the weight yourself. There's no subtlety in the difference.
Alcoe uses precision-machined, heat-treated corner gussets unlike others. These remarkably-strong pieces keep our doors from sagging under the most abusive circumstances, even with over 500 pounds swinging on them.
You'll see a big difference in the way our glass panels are held in. Our patented system clamps the glass in place with tension from aluminum channels, making for the most rattle-free, sound-proof, weather tight seal possible.
