Fire Rated Windows

High-Performance Fire Rated Aluminium Window Systems

THWC Fire Rated Windows & Doors designs, manufactures and installs fire rated aluminium window systems for commercial, public sector and multi-occupancy buildings.

Our systems include openable and fixed fire rated windows, engineered using tested aluminium platforms such as Aluprof and Schüco systems. Designed for demanding architectural environments, they combine fire resistance with thermal efficiency, acoustic performance and environmental compliance.

Widely specified across construction projects, these systems provide the advantages of a modern aluminium window while maintaining fire compartmentation performance.

Fire Rated Openable Windows

Fire rated openable windows are designed to automatically close in the event of fire using actuator systems connected to fire detection systems.

These windows provide ventilation and everyday usability while maintaining fire safety performance when required.

Key system characteristics include:

Fire resistance rating of EI30
Actuator operated closing mechanism linked to fire detection systems
Aluminium framed system construction
Available in standard RAL and premium finishes
Acoustic glass options available
Certified to EN 13501-2
Based on Aluprof and Schüco system platforms

Technical Specification	System
Frame Depth	77mm
Casement depth	86mm
Glazing thickness	Frame: 13-61mm, Casement: 22-70mm
Width of door leaf profiles	130kg

Technical Parameters	System
Air leakage	class 4, EN 12207
Water resistance	class E 1500, EN 12208
Wind resistance	class C5, EN 12210
Thermal insulation	U, od 1.07 W/(m2k), U_ from 0.86 W/(m2k)*
Fire Resistance Rating	Class EI30

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EI30 Openable Fire Rated Windows

EI30 Openable Fire Rated Windows – Section Detail 1

EI30 Openable Fire Rated Windows – Section Detail – Double window with floating mullion view

EI30 Openable Fire Rated Windows – 3D visualisation

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*Based on 2000x1100mm window with triple glazing, warm spacer and EI30 fire resisting glass.

Fire rated windows - internal installation

Fire Rated Fixed Windows

Fire rated fixed aluminium windows provide non-opening fire resistant glazing solutions for façades and building envelopes where compartmentation and protection are required without ventilation functionality.

Key system characteristics include:

Fire resistance ratings from EI30 to EI120
Aluminium framed fixed glazing systems
Available in standard RAL and premium finishes
Acoustic glass options available
Certified to EN 13501-2
Classified as non-fire spreading (NRO)
Based on MB-78EI and MB-118EI systems

Technical Specification	System
Casement depth	78 – 118mm
Glazing thickness	Up to 30 min: 16mm to 41mm, Up to 90 min: 32mm – 50mm, Up to 120 min: 31-84mm
Width of a double door	up to 2125mm

Technical Parameters	System
Air leakage	class 4, EN 12207
Water resistance	class e 1500, EN 12208

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Fire Rated Aluminium Fixed Windows

Fire Rated Aluminium Fixed Windows- Section detail 4

Fire Rated Aluminium Fixed Windows- Section detail 3

Fire Rated Aluminium Fixed Windows- Section detail 2

Fire Rated Aluminium Fixed Windows- Section detail 1

Fire Rated Aluminium Fixed Windows – Layout – Tilt and turn

Fire Rated Aluminium Fixed Windows – Layout – Bottom hung

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Speak to Our Technical Team

If you are specifying fire rated windows or smoke ventilation systems, THWC Fire Rated Windows & Doors can provide technical guidance, system selection support and project pricing.

Upload your drawings or contact our team to discuss your requirements.