Certified fire rated timber windows in real wood, tested by TUV EESTI under EN 16034. EI-30, EI-45 and EI-60 ratings. Available on all three profile systems: ECO 68, ECO 92, and Premium 115.
30 minutes of fire integrity and thermal insulation.
Classified per EN 13501-2, certified under EN 16034
45 minutes of certified fire protection.
Classified per EN 13501-2, certified under EN 16034
A full hour of certified fire protection. Our maximum standard certified rating.
Classified per EN 13501-2, certified under EN 16034. Custom orders up to EI-90 available for specialised projects.
The rating comes from the building's fire strategy, not from preference. What each class means is set out above. This is where the numbers land in the drawings that reach us.
| Rating | Status | Where it lands in the drawings we quote |
|---|---|---|
| EI-30 | Certified | The rating we are asked for most often: residential fire separation and standard commercial openings |
| EI-45 | Certified | The step between, specified when the strategy asks for more than 30 minutes but stops short of a full hour |
| EI-60 | Certified, top of our standard range | Often requested for compartment lines, stair and lobby interfaces, and protected escape-route areas where the fire strategy requires it |
| EI-90 | Project-specific enquiry only | Outside our standard certified range and subject to a suitable tested system. Raise it early if the strategy calls for it |
If the drawings name a rating, we check it against our certified scope before quoting. If they do not, ask your fire engineer or building control before ordering. The fire-resistant glazing and the intumescent seals go in at manufacture, so moving up a rating later means a new window rather than a site modification.
Timber fire rated windows look identical to standard windows while providing certified fire protection.
Click to enlarge. See more in our completed projects gallery.
Our fire rated windows are tested and certified by TUV EESTI, an accredited independent testing body operating under the TUV international framework. Every test involves a physical specimen, standardised fire exposure, and documented measurement of integrity and insulation performance.
The TUV EESTI mark provides confidence to architects, building inspectors, and insurance assessors that the stated fire performance is independently verified.
European building regulations mandate fire-resistant windows in specific locations to prevent fire spread between compartments:
| Parameter | Value |
|---|---|
| Fire Rating | EI-30 / EI-45 / EI-60 (certified by TUV EESTI) |
| Custom Order | Up to EI-90 for specialised projects |
| Standard | EN 16034 |
| Testing Body | TUV EESTI |
| Profile Systems | ECO 68 (68mm), ECO 92 (92mm), Premium 115 (115mm) |
| Thermal (Uw) | 1.0-1.3 W/m²K (ECO 68) / 0.78 W/m²K (ECO 92 triple) / 0.67 W/m²K (ECO 92 quadruple) / 0.78 W/m²K (Premium 115 triple) / 0.6 W/m²K (Premium 115 quadruple) |
| Sound Reduction | 32-39 dB |
| Expected Lifespan | 60 years |
| Timber | window profiles, Pine, Oak, Meranti, Larch |
| Hardware | GU (Gretsch-Unitas, Germany) |
| Alu Cladding | Optional. See Alu-Clad |
| Certifications | glazing options, Secured by Design, CE, ISO 9001, ISO 14001 |
Real fire test of Windows Latvia timber fire-rated window. See how engineered laminated timber with fire-resistant glazing and intumescent seals withstand temperatures exceeding 800 degrees Celsius.
Only engineered timber is used to manufacture all windows and doors. This provides superior strength, stability and a knot-free finish. window profiles, Learn more about our wood options.
Standard. Light, workable, excellent paint adhesion
Premium. Naturally durable, rich grain pattern
Tropical hardwood. Weather-resistant, stable
Naturally rot-resistant, strong, minimal maintenance
Choose EI rating (EI-30, EI-45 or EI-60), profile (ECO 68, ECO 92 or Premium 115), glazing, hardware - all in one tool. Get a precise quote in 5 minutes. Custom EI-90 also available on request.
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Key LockYes. Our timber windows are certified EI-30, EI-45, and EI-60 by TUV EESTI, tested to EN 16034. Fire-resistant configurations are available on all three profile systems: ECO 68, ECO 92, and Premium 115. Custom orders up to EI-90 are available for specialised projects.
EI-30 provides 30 minutes of fire integrity and thermal insulation. EI-45 provides 45 minutes, and EI-60 provides a full hour. The number indicates how long the window prevents fire and superheated gases from passing through during a standardised fire test (ISO 834 curve, temperatures exceeding 800 degrees).
No. Our fire rated timber windows look and feel identical to standard timber windows: warm natural wood inside, the same window profiles, timber species options, the same paint and lacquer finishes. The fire-resistant glazing and intumescent seals are not visible. This makes them ideal for heritage and listed buildings where metal frames would be unacceptable.
Fire rated windows use special fire-resistant glazing that maintains integrity under extreme heat. The glass contains interlayers that foam and opacify when exposed to fire, providing both insulation and blocking radiant heat transfer. Standard Low-E coatings and triple glazing are combined with the fire-resistant properties.
In many cases, yes. European building regulations require fire rated windows in apartment corridors, stairwells, party wall openings, and windows near property boundaries. Requirements vary by country and building type. Contact us with your project details for specific guidance.
Yes. Optional aluminium exterior cladding is available in any RAL colour. This gives you fire-rated timber performance inside with zero-maintenance aluminium outside. Ideal for multi-storey buildings where both fire safety and low maintenance are required.
Fill in your project details and we will prepare a tailored proposal within 48 hours.
Thank you! Kristiana will review your request and respond within 48 hours.
