Window Energy Ratings vs U-Values: Which Number Should You Trust? Trust verified figures that answer the question you are asking. A U-value describes thermal transmittance, while a Window Energy Rating combines heat loss, solar gain and air leakage within a defined assessment. They are useful for different purposes, and neither should be treated as a […]
Tag Archives: whole window performance
04
Nov
Nov
Do Heat Pumps Need Better Windows to Work Properly? Not necessarily. Window replacement should not be treated as a universal prerequisite for a heat pump. Better windows can reduce heat demand and improve local comfort, but whether they are necessary or worthwhile depends on the building, its existing openings and the proposed heating design. Begin […]
02
Oct
Oct
1. Start with the house and the room There is no single standard UK semi. Houses built in different decades may share a familiar outline while differing substantially in wall construction, roof insulation, ventilation and the condition of their windows. One may face an open, windy street; another may be sheltered by neighbouring buildings. Those […]
11
Sep
Sep
Three Panes Sounds Better Than Two — and Sometimes It Is Triple glazing has an appealing simplicity to it. If two panes of glass provide insulation, three must surely provide more. For homeowners already investing heavily in a renovation or self-build, choosing the apparently higher specification can feel like an obvious decision: improve the glazing […]