Mylch hotel windows reimagines how HVAC units interface with modern building envelopes. Specifically engineered for hospitality, student housing, and multi-family projects across North America, this system eliminates the visual and structural chaos of traditional wall-sleeve cutouts. By integrating a heavy-duty, high-performance window with a precision-engineered AC louver into a single structural unit, we deliver a flawless exterior facade and a dramatic reduction in field labor.

Engineering Excellence & Value

• Consolidates windows and AC sleeves into a single, factory-assembled unit that drops into one rough opening. This eliminates separate trades and slashes on-site framing and installation labor.​

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• Replaces mismatched, protruding AC grilles. The integrated lower louvers use the exact same architectural aluminum and finish coating as the window frame, preserving clean, continuous lines across the hotel facade.

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• Eliminates the notorious leak and draft risks of field-flashing independent components. Factory-mulled joints and continuous perimeter seals form an unbroken, high-performance barrier against wind and rain.

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• Engineered with multi-layer acoustic glass and dense EPDM multi-point seals to hit an outstanding STC up to 45 dB, effectively isolating both urban traffic and localized HVAC mechanical vibrations.

The Ultimate Integrated PTAC Solution

Our integrated PTAC window systems eliminate the clunky, multi-piece look of traditional installations. Featuring a minimalist frame design, seamless louver integration, and multi-layer thermal barriers, this system delivers clean exterior sightlines without compromising on acoustic insulation or thermal efficiency.