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window_area – Total area of the windows in a house.


module residential;
class house {
  double window_area[sf];
object house {
  window_area value sf;


The window area is used to calculate net_exterior_wall_area, envelope_UA, solar_heatgain_factor, and house_content_heat_transfer_coeff. This is an automatically calculated value, not a variable that the user may set.

It is calculated by:

window_area = gross_wall_area * window_wall_ratio * exterior_wall_fraction


Using default values:

[math]1633\text{ft}^2 \cdot 0.15 \cdot 1 = 244.95\text{ft}^2[/math]

Therefore the default window_area is 244.95 square feet.

See Also