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GB201412405D0
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Construction membrane and intermittent tape
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GB201221387D0
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Ventilation device with heat recovery mode
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GB201200901D0
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Building ventilation system
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GB201002845D0
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Combined mechanical and passive building ventilation system including heat recovery
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GB0807930D0
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Improved materials for flashing
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GB0721727D0
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Ducted building illumination
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GB0618439D0
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A dry verge system for a roof structure
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GB0522709D0
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Building illumination with roof structure and diffuser
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GB0514638D0
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Rafter spacer
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GB0506970D0
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Damper system for building ventilation apparatus
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GB0400897D0
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Valve device
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GB0229411D0
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Vapour permeable heat-reflective membranes
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GB9915386D0
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Ventilation systems
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GB9910439D0
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Building ventilation
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GB9906067D0
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Curved frame building structure
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