How To Estimate The Roofing Sheet Requirement For a Building Let us Calculate the Number Of Roofing Sheets required for the below-given building. Given data: Length of the building = 20 ft. Width of the building = 15 ft. Overhang on all four sides = 1ft Angle θ = 50° Calculation: …

Read More »## How To Calculate The Length Of Roof Rafters

How To Calculate The Length Of Roof Rafters Let us calculate the length of the roof rafter as shown in the below drawing. The length of the roof rafters is calculated in three different methods based on the available data. Let us go through, all of them as explained below. …

Read More »## What is the 3-4-5 rule or the 3-4-5 method In Building Work

What is the 3-4-5 rule or the 3-4-5 method In Building Work 1. What is the 3-4-5 rule or the 3-4-5 method? According to the Pythagoras theorem, in a right angle triangle, c2=a2+ b2 Where a,b, & c are the sides of the triangle Suppose, if the side AB = …

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