Windows

Basic Window U-values - BR443 Model Casement Application & Data Form

BWF Members can have their U-values calculated through BWF at highly reduced rates. Choose the appropriate form to download and complete, then please email it to bwf@bwf.org.uk and arrange payment

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Basic Window U-values - Vertical Sliding Sash - Spiral Balance Application & Data Form

BWF Members can have their U-values calculated through BWF at highly reduced rates. Choose the appropriate form to download and complete, then please email it to bwf@bwf.org.uk and arrange payment

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Basic Window U-values - Vertical Sliding Sash - With Weights and Pulleys Application & Data Form

BWF Members can have their U-values calculated through BWF at highly reduced rates. Choose the appropriate form to download and complete, then please email it to bwf@bwf.org.uk and arrange payment

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Basic Door U-values Type 1 Model Doorset Unglazed Application & Data Form

BWF Members can have their U-values calculated through BWF at highly reduced rates. Choose the appropriate form to download and complete, then please email it to bwf@bwf.org.uk and arrange payment

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Basic Door U-values Type 2 Model Doorset Partially Glazed Application & Data Form

BWF Members can have their U-values calculated through BWF at highly reduced rates. Choose the appropriate form to download and complete, then please email it to bwf@bwf.org.uk and arrange payment

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Basic Door U-values Type 3 Model Doorset Fully Glazed Application & Data Form

BWF Members can have their U-values calculated through BWF at highly reduced rates. Choose the appropriate form to download and complete, then please email it to bwf@bwf.org.uk and arrange payment

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Care of Timber Windows on site

Timber windows produced by Members of the British Woodworking Federation are accurate components designed and manufactured using the best available techniques to produce performance rated components. The way they are handled and stored on site can affect their long-term performance. Good practice avoids damage, maintains quality and saves money.

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Emergency Egress (escape) windows

In July 2000 the Approved Document B (Fire safety) introduced a new concept of Emergency Egress windows to dwellings with an upper floor level of not more than 4.5m.

Timber windows in service

General advice on the procedures that are carried out during the manufacture of timber windows and the effect of poor protection or changes in climatic conditions can have on the windows in service.

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Installing Timber Windows

Good practice guidance for installing timber windows which avoid damage maintains quality and saves money.

Relationship between BS 644 and BS EN 14351

This guide is intended to explain briefly the relationship between the British Standard for timber windows, BS 644, and the European Product Standard for windows, BS EN 14351-1.

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