![]() If you want to get the exact number of sheets, you have to decrease the height of them until you get the round figure of rows number. Note, that the estimator calculates the needed quantity of materials based on the total area value. The overlap value is calculated automatically depending on the slope angle.This online roof pitch calculator can assist you in calculating the amount of the construction materials needed to build a single sloping surface type of a housetop, in particular, you are able to estimate the required quantity of the sheeting material (metal tile, asbestos slate, metal slate etc.), sarking boards for sheathing and rafters for trusses, underlay material (rubberoid or asphaltic felt, asphalt paper). The number of whole rolls of steam-hydro insulation, taking into account overlap. Number of rolls of steam-waterproofing with overlap.The total number of rows of crates and counter-crates according to the specified dimensions for the entire roof Number of rows of crates and counter-crates.The total number of rafters at a given step for the entire rafter system. ![]() The calculated cross-section of the rafters, taking into account the selected parameters and loads. The margin of safety of a suitable section of the rafters, depending on the minimum section. The length of the rafters from the ridge to the base of the ramp Includes the weight of roofing material, crates, counter-crates, rafters and insulation, as well as snow and wind load in the peak, taking into account the slope angle ![]()
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