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2. Door - Wikipedia

   en.wikipedia.org/wiki/Door

   Solid-core – Can consist of low-density particle board or foam used to completely fill the space within the door. Solid-core flush doors (especially foam-core ones) are commonly used as exterior doors because they provide more insulation and strength. Skin – The front and back faces of the door are covered with HDF/MDF skins.

3. List of polyurethane applications - Wikipedia

   en.wikipedia.org/wiki/List_of_polyurethane...

   Industrial Insulation. Rigid polyurethane foam is used in various industries to provide thermal insulation to installations and pipes. In particular, the piping for district heating systems in Europe is primarily insulated using a pre-insulated pipes sandwich assembly composed of a steel heat service pipe, an insulating layer (polyurethane foam) and a polyethylene (PE) casing, which are bonded ...

4. Weatherization - Wikipedia

   en.wikipedia.org/wiki/Weatherization

   Installing insulation in walls, floors, and ceilings, around ducts and pipes, around water heaters, and near the foundation and sill. Installing storm doors and storm windows. Replacing old drafty doors with tightly sealing, foam-core doors. Retrofitting older windows with a stop or parting bead across the sill where it meets the sash. [4]

5. Insulated glazing - Wikipedia

   en.wikipedia.org/wiki/Insulated_glazing

   A typical installation of insulated glass windows with uPVC frames. Possibly the earliest use of double glazing was in Siberia, where it was observed by Henry Seebohm in 1877 as an established necessity in the Yeniseysk area where the bitterly cold winter temperatures regularly fall below -50 °C, indicating how the concept may have started: [2]

6. Building envelope - Wikipedia

   en.wikipedia.org/wiki/Building_envelope

   The physical components of the envelope include the foundation, roof, walls, doors, windows, ceiling, and their related barriers and insulation. The dimensions, performance and compatibility of materials, fabrication process and details, connections and interactions are the main factors that determine the effectiveness and durability of the ...

7. Building insulation - Wikipedia

   en.wikipedia.org/wiki/Building_insulation

   In cold conditions, the main aim is to reduce heat flow out of the building. The components of the building envelope—windows, doors, roofs, floors/foundations, walls, and air infiltration barriers—are all important sources of heat loss; [35] [36] in an otherwise well insulated home, windows will then become an important source of heat ...