https://passiv.house/Understand the building choices behind steady, everyday comfort.enhttps://passiv.house/articles/can-a-passive-home-keep-a-glazed-wall-comfortable-without-a-radiator/https://passiv.house/articles/can-a-passive-home-keep-a-glazed-wall-comfortable-without-a-radiator/A radiator does not have to occupy the strip of wall beneath every window in a passive home. Passivhaus Trust guidance says triple-glazed windows avoid downdraught comfort issues, allowing radiators to go where convenient in a room. The Passive House Institute’s documentation of Darmstadt Kranichstein also links window U-values below 0.8 W/(m²K) with interior surfaces above about 17°C and comfort without compensating heating surfaces. The room still needs heating, sized for its heat load and design. [1] [2]Wed, 14 Oct 2026 00:00:00 +0000https://passiv.house/articles/which-parts-of-a-window-matter-beyond-the-panes/https://passiv.house/articles/which-parts-of-a-window-matter-beyond-the-panes/On a cold evening, a room may feel comfortable until you sit beside the window. Pane count is part of the picture, but the glass, frame, spacer at the glass edge and the way the frame meets the wall all affect heat flow and the surfaces around you. In the UK, Passivhaus buildings almost always require triple glazing; the project still needs an appropriate whole-window specification and carefully detailed installation. [1]Wed, 14 Oct 2026 00:00:00 +0000https://passiv.house/articles/can-a-passive-house-bedroom-stay-cooler-than-the-living-room/https://passiv.house/articles/can-a-passive-house-bedroom-stay-cooler-than-the-living-room/Yes, a passive-house bedroom can be cooler than the living room, but the Passive House principles do not guarantee a particular temperature gap. The principles focus on the building envelope, windows and ventilation; the room-to-room result also depends on heating controls, airflow, sunlight and heat from people or equipment. If a cooler bedroom matters, include it in the room layout and control design rather than assuming the building standard will create that difference. [1] [2] [3] [4]Wed, 14 Oct 2026 00:00:00 +0000https://passiv.house/articles/can-equally-insulating-windows-warm-a-room-differently/https://passiv.house/articles/can-equally-insulating-windows-warm-a-room-differently/On a sunny afternoon, one room can receive more solar heat through its windows than another, even if the glazing has the same Ug value. The figures describe different things: U-factor concerns heat flow through glazing as indoor and outdoor temperatures differ; g-value reports total solar transmittance. A similar insulation figure alone cannot tell you how much solar energy will pass indoors. [1] [2]Wed, 14 Oct 2026 00:00:00 +0000