Although ventilation calculations sometimes appear to be a “no brainer,” this article will show how important it is to properly identify spaces and their function, how to automate the calculations, ...

My home has no eave vents, but it does have three gable vents (14 inches x 14 inches each). The roof is 5-in-12 pitch, has R-30 insulation and covers 1,500 square feet. Could you tell me how to ...