ThermPH+ Innovation Award Finalist at JEC World 2020 In france

Introducing ThermPH+, World's First Passive House Certified Curtain Wall for Cold Climates (0.6 W/m2K - R9.5)

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Launched at Greenbuild 2013 in Philadelphia, GlasCurtain is a Canadian manufacturer of high-performance Fibreglass-Framed Curtain Wall Systems that improve occupant comfort and reduce operational costs by upwards of 30%.

GlasCurtain's newest system, ThermPH+, is the highest thermally performing curtain wall system in the world and is certified to

Passive House (PHI) Cold Climate criteria. (0.6 W/m2K - R9.5).

Exclusively designed for triple-glazed applications, GlasCurtain is dedicated to advancing envelope performance, particularly in the face of more stringent Energy Step Codes, LEED, LBC, WELL, and Passive House requirements.

GlasCurtain is a proud member of the Canada Green Building Council and Passive House Canada.


"There's no reason not to spec GlasCurtain if the building type allows it."

~Architecture 49

"I must say, the CW turned out wonderfully."

~Teeple Architects

"We wanted to achieve net-zero energy and GlasCurtain has really helped us do that."

~Client, LEED Platinum Certified Project

"GlasCurtain has produced a better framing product."

~CaGBC Canada Innovation Award Panel


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Managing Director