Passivhaus Certification Meets Architectural Design Freedom

The Schüco AWS 90.SI is the ideal choice for projects where the highest thermal insulation requirements must be met without sacrificing design quality. With a basic frame depth of 95mm, Passivhaus standard is achievable, and the AWS 90 BS.SI+ series now extends this capability to double-vent block window designs. The system also incorporates renewable raw materials into its insulating bars, foam, and gaskets – including castor oil as an ecological alternative to fossil fuels – positioning it as a high quality, genuinely sustainable aluminium window system for the most demanding projects.

Schuco Passivhaus AWSSL sliding door

Passivhaus Institute-certified thermal performance

Narrow profile face widths with concealed vent design

Renewable raw materials in insulating bars and gaskets

Single and double-vent block window configurations

Schüco AWS 90.SI Technical Specifications

Key technical information for the Schüco AWS 90.SI Passivhaus-certified aluminium window system, including depth, glazing, and performance data.

SpecificationDetail
Basic frame depth95 mm
Passivhaus certificationCertified by the Passivhaus Institute
Vent configurationsSingle and double-vent block window designs
Insulating bar materialPolyamide with renewable raw materials including castor oil
Triple glazingSupported – required for Passivhaus performance thresholds
FinishingFull range of polyester powder coat colours and anodised finishes; dual colour available
SustainabilitySignificant use of renewable raw materials in insulating bars, foam, and gaskets

Schüco AWS 90.SI Product Downloads

Download technical datasheets, system brochures, and Passivhaus certification documents for the Schüco AWS 90.SI aluminium window system.

Outstanding Thermal Insulation Without Visual Compromise

The Schüco AWS 90.SI is designed to achieve optimum thermal insulation at the system level, meeting the highest thermal insulation requirements for Passivhaus certification with a basic frame depth of 95mm. Narrow profile face widths and concealed vents allow the realisation of harmonious block window solutions – preserving the clean lines and architectural style of the building while delivering the thermal performance that low-energy construction demands.

Triple glazing is central to the performance of the AWS 90.SI, contributing directly to the outstanding thermal insulation values required for Passivhaus standard. The result is a window system that provides genuine energy efficiency and reliable protection against heat loss, across all weather conditions, throughout its service life.

Schuco Passivhaus AWSSL window
glassdoor at Worlds End, Kinsale

Sustainable by Design – Built for the Future

The Schüco AWS 90.SI Green Generation introduces a meaningful step forward in sustainable aluminium window manufacturing. Renewable raw materials – including castor oil as an ecological substitute for fossil fuels – are incorporated into polyamide insulating bars, foam, and gaskets for the first time, reducing reliance on fossil-derived materials without affecting the highest standards of performance.

This commitment to sustainability sits alongside a full range of colour options via polyester powder coating and anodised finishes, including dual colour configurations. Whether specified for contemporary commercial buildings, high-specification new-builds, or architect-designed private homes, the AWS 90.SI offers aesthetic appeal and technical depth in equal measure – a window system genuinely built to meet the highest demands of modern, sustainable architecture.

Frequently Asked Questions

Technical and specification questions answered for architects, Passivhaus consultants, and specifiers considering the Schüco AWS 90.SI aluminium window system.

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What our customers say

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Zyle supplied Passive House windows for our new build, and the system met all project expectations. Airtightness and overall performance were delivered as specified, and their technical coordination on site was reliable and detail focused.

Private Owner

Mark Reynolds, Bristol

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Our vacuum glazed sash windows provide an excellent balance between heritage sensitivity and modern performance. The slim glazing preserves the character of the property while significantly improving overall comfort. Installation was precise and professionally managed.

Private owner

Laura Mitchell, Southampton

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The Passive House windows performed exactly as required within our project specification. Installation detailing, sealing, and overall execution were handled correctly, ensuring a high standard of delivery. A technically competent and reliable supplier.

Private Owner

Andrew Collins, Cambridge

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We selected aluminum windows for their contemporary aesthetic and low maintenance. The proportions are well considered, and the finish quality is consistent throughout. Installation was efficient and carried out with strong attention to detail.

Private Owner

Rachel Adams, Reading

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The triple glazed sash windows integrate seamlessly into the existing façade while offering a clear upgrade in comfort. Craftsmanship is evident in both joinery and installation, and the improvement in acoustic insulation is immediately noticeable.

Private Owner

Thomas Green, Nottingham

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The Alu-Clad windows and doors introduced a strong architectural presence while maintaining a refined internal finish. Detailing, material quality, and consistency across the project are of a high standard. The process was structured and dependable from start to finish.

Private Owner

Olivia Bennett, Oxford

Talk to Our Team

Whether you are an architect specifying for a new project, a self-builder planning your custom home, or a developer working to a programme, our team is here to help. Get in touch for technical advice, product information, or to request a quote.

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