--- title: "Building Envelope" url: https://betterhomebetterplanet.com/catalogue/building-envelope/ description: "The shell of the house: the layer that separates warm inside air from cold outside air." --- # Building Envelope Skip to the catalogue | | [IXCatalogue Index](https://betterhomebetterplanet.com/catalogue/)[SCSections](https://betterhomebetterplanet.com/catalogue/building-envelope/)[STStart Here](https://betterhomebetterplanet.com/catalogue/air-sealing-gaps-and-cracks/) | |---|---| | »Categories[Building Envelope](https://betterhomebetterplanet.com/catalogue/building-envelope/)5[Heating, Cooling & Water](https://betterhomebetterplanet.com/catalogue/heating-cooling-water/)6[Water & Outside](https://betterhomebetterplanet.com/catalogue/water-and-outside/)4[Materials & Finishes](https://betterhomebetterplanet.com/catalogue/materials-and-finishes/)3»Project Types[Sealing and draughtproofing](https://betterhomebetterplanet.com/catalogue/air-sealing-gaps-and-cracks/)[Insulating](https://betterhomebetterplanet.com/catalogue/attic-and-loft-insulation/)[Water and pipework](https://betterhomebetterplanet.com/catalogue/hot-water-pipe-insulation/)[Planting and drainage](https://betterhomebetterplanet.com/catalogue/drainage-and-ground-levels/)[Surfaces and finishes](https://betterhomebetterplanet.com/catalogue/low-voc-paints-and-finishes/)»Quick FindJump straight to the entry that covers a common complaint.[Lower electricity bills](https://betterhomebetterplanet.com/catalogue/how-to-reduce-electricity-bill/)[Draughts](https://betterhomebetterplanet.com/catalogue/air-sealing-gaps-and-cracks/)[Cold rooms](https://betterhomebetterplanet.com/catalogue/wall-insulation-choices/)[Condensation](https://betterhomebetterplanet.com/catalogue/secondary-glazing-and-films/)[Damp at low level](https://betterhomebetterplanet.com/catalogue/drainage-and-ground-levels/)[Noise between floors](https://betterhomebetterplanet.com/catalogue/floor-underlay-and-acoustics/)[Slow hot water](https://betterhomebetterplanet.com/catalogue/hot-water-pipe-insulation/)[Summer overheating](https://betterhomebetterplanet.com/catalogue/planting-mulch-and-shade/) | Section · 5 entriesThe envelope is everything that stands between the rooms you heat and the weather outside: the roof, the walls, the floor, the windows and every joint between them. Work on the envelope tends to come first, because it changes how much heat a home needs before any decision about heating equipment is made.[Building Envelope](https://betterhomebetterplanet.com/catalogue/building-envelope/)The shell of the house: the layer that separates warm inside air from cold outside air.[Air Sealing Gaps And Cracks](https://betterhomebetterplanet.com/catalogue/air-sealing-gaps-and-cracks/)Closing the small unintended openings that let outside air move through the shell.BE-01Straightforward Cool, still weather[Attic And Loft Insulation](https://betterhomebetterplanet.com/catalogue/attic-and-loft-insulation/)Laying or topping up insulation at the ceiling line so heat stops leaving through the roof.BE-02Moderate Any season[Wall Insulation Choices](https://betterhomebetterplanet.com/catalogue/wall-insulation-choices/)How wall construction decides whether insulation goes in the cavity, inside or outside.BE-03Trade work Warm, dry weather[Weatherstripping Doors](https://betterhomebetterplanet.com/catalogue/weatherstripping-doors/)Fitting compression seals and threshold strips so external doors close against a gasket.BE-04Straightforward Before winter[Secondary Glazing And Films](https://betterhomebetterplanet.com/catalogue/secondary-glazing-and-films/)Adding a second sealed layer inside existing windows without replacing them.BE-05Moderate Cool, still weather | »Catalogue StatusThis catalogue holds **18** entries across **4** sections.Entries are written to be read and worked from. Nothing here is ordered, priced or supplied.»Start Here[Air Sealing Gaps And Cracks](https://betterhomebetterplanet.com/catalogue/air-sealing-gaps-and-cracks/)[Attic And Loft Insulation](https://betterhomebetterplanet.com/catalogue/attic-and-loft-insulation/)[Weatherstripping Doors](https://betterhomebetterplanet.com/catalogue/weatherstripping-doors/)[Thermostat Settings And Zoning](https://betterhomebetterplanet.com/catalogue/thermostat-settings-and-zoning/)[Radiator And Baseboard Care](https://betterhomebetterplanet.com/catalogue/radiator-and-baseboard-care/) | | |---|---|---|---| | | [Air Sealing Gaps And Cracks](https://betterhomebetterplanet.com/catalogue/air-sealing-gaps-and-cracks/)Closing the small unintended openings that let outside air move through the shell. | BE-01 | Straightforward Cool, still weather | | | [Attic And Loft Insulation](https://betterhomebetterplanet.com/catalogue/attic-and-loft-insulation/)Laying or topping up insulation at the ceiling line so heat stops leaving through the roof. | BE-02 | Moderate Any season | | | [Wall Insulation Choices](https://betterhomebetterplanet.com/catalogue/wall-insulation-choices/)How wall construction decides whether insulation goes in the cavity, inside or outside. | BE-03 | Trade work Warm, dry weather | | | [Weatherstripping Doors](https://betterhomebetterplanet.com/catalogue/weatherstripping-doors/)Fitting compression seals and threshold strips so external doors close against a gasket. | BE-04 | Straightforward Before winter | | | [Secondary Glazing And Films](https://betterhomebetterplanet.com/catalogue/secondary-glazing-and-films/)Adding a second sealed layer inside existing windows without replacing them. | BE-05 | Moderate Cool, still weather | 4 sections · 18 entries · 5 index pages — [Building Envelope](https://betterhomebetterplanet.com/catalogue/building-envelope/) [Heating, Cooling & Water](https://betterhomebetterplanet.com/catalogue/heating-cooling-water/) [Water & Outside](https://betterhomebetterplanet.com/catalogue/water-and-outside/) [Materials & Finishes](https://betterhomebetterplanet.com/catalogue/materials-and-finishes/) © Better Home Better Planet