Wood joists with either a board or plywood sheathing with a monitor design. This includes prefabricated residential trussed rafters and joists. The monitor design is a narrow gable- or shed-roofed structure built into the roof of the building, with the function of providing light and ventilation through the sides.
Roof cover.
Consider the size, spacing and composition of the supports when selecting a quality, as well as the thickness of the deck. Generally, prefabricated members, such as web joists, are low quality, while site-built members are high quality.
Enter the following for this component:
Percent of Total Floor Area: 1 – 100, or
Roof Area (Square Feet)
Roof Structure