Roof slope factor

The roof can also be measures in degrees. However, it is often difficult and unnecessary way to estimate a roof slope , while using roof pitch is simpler, faster, and often – more accurate. Nevertheless, our roof pitch calculator provides instant conversion from roof pitch to degrees and backwards, when you use it to calculate . Pitch is expressed as a ratio of the vertical rise to the horizontal span. In order to know what type of materials will work best for your project .

When Scaling A Roof Size From A Drawing,. For instance, some roofing materials work best. Pitch is the vertical rise in the roof, which is divided by the horizontal span. Thus both the terms are different. Calculate the factor of a slope needed to calculate the square area of a roof.

The major factors when considering roof slopes are. Most of us estimators have a “cheat-sheet” pinned to the wall that lists the all the roof slope factors used when estimating rafters, roof decking and roofing. Free online tool to estimate the area of roof and the materials needed for the roof , along with hundreds of other free calculators.

The following tools estimate the area of a roof , as well as the amount of materials necessary to construct a roof of a given area. Roofing and remodeling estimates made easy. Calculating the roof slope factor is not that difficult.

All you need is a simple trigonometry equation and a calculator that has a square root button. Think of a roof as two identical triangles, back to back. If you know the length of the triangle base, you can calculate the length of the long side of the triangle (the rafter) by using trigonometry. See the accompanying table for . Substitute the formulas given under each type of roof to obtain actual square foot area for the following roofs.

Formula refers to shaded area in diagram. Add approximate extra for waste. This bulletin includes a worksheet to adjust the panel length and load based upon the roof slope. The correct panel length and loading are crit- ical for proper panel selection. OAD ADJuSTMEnT FOR PiTCHED ROOF.

Buying metal roof panels and need help sizing? Use our roof slope factor chart – the slop factor is designed to calculate panel length. Convert the ground snow load to flat roof snow load (roof slope ≤5°), pf, with consideration given to the (1) roof exposure, (2) roof thermal condition, and (3) occupancy category of the structure: 0.

Apply a roof slope factor to the flat roof snow load to determine the sloped (balanced) roof snow load. Determining Roof Rafter Length. D) Conversion to Actual Area. Now that the total projected horizontal areas for each roof slope have been calculate the can be converted to actual areas with the aid of Table 1. For the 9” slope roof : 3ft² x 1. Snow loads acting on a sloping surface shall be assumed to act on the horizontal projection of that surface. Read reviews, compare customer ratings, see screenshots, and learn more about Roof Pitch Factor.

Ah, on second thoughts, its probably just as easy to look up the “ slope factor ” in the . This factor can be applied to an Elevation view or a Plan view. This tool is used mostly to measure angled roof and siding areas. Slope Factors with the Area Tool.