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371 guides across 20 house files. Each one opens with an energy record: the file and stage, the question it answers, the evidence level and the first check. Page 10 of 10, guides 370 to 371.
File 08 - Windows, doors and ventilation Window U-Values and Ratings How to read window U-values, energy ratings and related figures without confusing centre-pane, whole-window and installed performance. Educational only, not advice for a particular home. File 08 - Windows, doors and ventilation Windows, Doors and Ventilation A starting map for windows, doors and ventilation together: heat loss, draughts, air quality and moisture, and why the three must be planned as one system. Educational only, not advice for a particular home.