(4 minutes) Calculating annual heat loss is one of the most important formulas used in the building performance field. This video is a quick lesson about how to calculate annual heat loss.
This lesson provides a table of window performance factors and how these factors relate to the different types of window glazing. The performance factors include: R-value, U-factor, solar heat gain coefficient, visible transmittance.
(9 minutes) This video explains how the difference in temperature between the indoors and outdoors affects comfort and energy consumption in the winter months.