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2. Cooling load temperature difference calculation method

   en.wikipedia.org/wiki/Cooling_load_temperature...

   The equations for the use of the data retrieved from these tables are very simple. Q= heat gain, usually heat gain per unit time. A= surface area. U= Overall heat transfer coefficient. CLTD= cooling load temperature difference. SCL= solar cooling load factor. CLF= cooling load factor. SC= shading coefficient.

3. Roof pitch - Wikipedia

   en.wikipedia.org/wiki/Roof_pitch

   Roof pitch. Roof pitch is the steepness of a roof expressed as a ratio of inch (es) rise per horizontal foot (or their metric equivalent), or as the angle in degrees its surface deviates from the horizontal. A flat roof has a pitch of zero in either instance; all other roofs are pitched. A roof that rises 3 inches per foot, for example, would ...

4. Sol-air temperature - Wikipedia

   en.wikipedia.org/wiki/Sol-air_temperature

   Sol-air temperature. Sol-air temperature (Tsol-air) is a variable used to calculate cooling load of a building and determine the total heat gain through exterior surfaces. It is an improvement over: Where: The above equation only takes into account the temperature differences and ignores two important parameters, being 1) solar radiative flux ...

5. Reflective surfaces (climate engineering) - Wikipedia

   en.wikipedia.org/wiki/Reflective_surfaces...

   Reflective surfaces, or ground-based albedo modification (GBAM), is a solar radiation management method of enhancing Earth's albedo (the ability to reflect the visible, infrared, and ultraviolet wavelengths of the Sun, reducing heat transfer to the surface). The IPCC described this method as "whitening roofs, changes in land use management (e.g ...

6. Truss - Wikipedia

   en.wikipedia.org/wiki/Truss

   A truss is an assembly of members such as beams, connected by nodes, that creates a rigid structure. [1] In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". [2] A "two-force member" is a structural component where force is ...

7. R-value (insulation) - Wikipedia

   en.wikipedia.org/wiki/R-value_(insulation)

   R. -value (insulation) The R-value (in K ⋅ m 2/ W) is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive [2] flow of heat, in the context of construction. [3] R-value is the temperature difference per unit of heat flux needed to sustain one unit of ...