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Conservatories, sun-rooms and other highly glazed spaces
3.19NI-wide·Technical Booklet F1 Conservation of Fuel and Power in Dwellings
Where a dwelling is extended by a non-exempt conservatory or by a sun room or other highly glazed spaces, the extension should have – (a) thermal separation; (b) new controlled fittings that comply wi
dwellingenergyextensionAlternative approach for conservatories and highly glazed extensions
3.20NI-wide·Technical Booklet F1 Conservation of Fuel and Power in Dwellings
Alternatively, the extension may be constructed in accordance with one of the approaches given in paragraph 3.8.
dwellingenergyextension