IQ Glass are the leading architectural glass technology and minimal framed glazing company in the UK. Utilising years of experience with glass, IQ Glass are able to mix minimal aesthetics with innovative glass technology for a beautiful yet function glass structure. We strive to understand and fulfill the highest customer's quality expectations, of performance, durability and design.

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PassivHaus Doors

Using thermally efficient timber profiles IQ can offer high specification PassivHaus certified doors for low carbon design projects.

Modern Glass Technology by IQ Glass

Exceptional Thermal Insulation

Passivhaus doors are expertly engineered doors systems that that been tested to the exacting Passivhaus standards for thermal insulation and air tightness.

IQ Glass can offer a range of PassivHaus certified door systems and composite doors with high insulation values. These highly insulating doors are the perfect option for Eco Home designs or zero carbon projects where high levels of insulation are required.

With Uw values of 0.67 W/m2K and triple glazing as standard you can achieve extremely high levels of thermal performance from our Passivhaus door range even if Passivhaus certification is not being sought for the project.

Inward Opening Doors

To achieve such high thermal performance values Passivhaus doors are designed as composite door systems, with a timber framing profile clad with aluminium externally.

The timber frame, available in a range of wood finishes and types, creates the high levels of insulation required whilst the external aluminium frame face protects the timber framing, creating a low maintenance finish.

To ensure the high levels of air tightness required for Passivhaus building design these composite doors are designed to be inward opening. This opening type has the added benefit of allowing you to completely hide the external frame by the external building finishes.