Roof Live Load Calculator

✖Reduction Factor for Size of Tributary Area is the factor by which the size of tributary area reduces.ⓘ Reduction Factor for Size of Tributary Area [R₁]			+10% -10%
✖The Reduction Factor for Slope of Roof is the factor by which the slope of the roof reduces.ⓘ Reduction Factor for Slope of Roof [R₂]			+10% -10%

✖Roof Live Load is the load to which roof is subjected in addition to its own weight.ⓘ Roof Live Load [L_f]

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Roof Live Load Solution

STEP 0: Pre-Calculation Summary

Formula Used

Roof Live Load = 20*Reduction Factor for Size of Tributary Area*Reduction Factor for Slope of Roof
L_f = 20*R₁*R₂
This formula uses 3 Variables

Variables Used

Roof Live Load - (Measured in Newton) - Roof Live Load is the load to which roof is subjected in addition to its own weight.
Reduction Factor for Size of Tributary Area - Reduction Factor for Size of Tributary Area is the factor by which the size of tributary area reduces.
Reduction Factor for Slope of Roof - The Reduction Factor for Slope of Roof is the factor by which the slope of the roof reduces.

STEP 1: Convert Input(s) to Base Unit

Reduction Factor for Size of Tributary Area: 1.01 --> No Conversion Required
Reduction Factor for Slope of Roof: 0.9 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

L_f = 20*R₁*R₂ --> 20*1.01*0.9

Evaluating ... ...

L_f = 18.18

STEP 3: Convert Result to Output's Unit

18.18 Newton --> No Conversion Required

FINAL ANSWER

18.18 Newton <-- Roof Live Load

(Calculation completed in 00.004 seconds)

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Credits

Created by Mridul Sharma

Indian Institute of Information Technology (IIIT), Bhopal

Mridul Sharma has created this Calculator and 200+ more calculators!

Verified by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has verified this Calculator and 500+ more calculators!

< Roof Live Loads Calculators

Roof Live Load

LaTeX Go Roof Live Load = 20*Reduction Factor for Size of Tributary Area*Reduction Factor for Slope of Roof

Tributary Area given Roof Live Load

LaTeX Go Tributary Area = 1000*(1.2-(Roof Live Load/(20*Reduction Factor for Slope of Roof)))

Roof Live Load when Tributary Area Les in Range 200 to 600 square feet

LaTeX Go Roof Live Load = 20*(1.2-0.001*Tributary Area)*Reduction Factor for Slope of Roof

Roof Live Load Formula

LaTeX Go

Roof Live Load = 20*Reduction Factor for Size of Tributary Area*Reduction Factor for Slope of Roof
L_f = 20*R₁*R₂

What is Live Load?

Live load is the load to which a structure is subjected in addition to its own weight. In other words, it is the extra weight put on a structure apart from the weight of structure itself .

How to Calculate Roof Live Load?

Roof Live Load calculator uses Roof Live Load = 20*Reduction Factor for Size of Tributary Area*Reduction Factor for Slope of Roof to calculate the Roof Live Load, The Roof Live Load is defined as the live load for a roof which is equivalent to 20 times the product of reduction factors for tributary area and slope of roof. Roof Live Load is denoted by L_f symbol.

How to calculate Roof Live Load using this online calculator? To use this online calculator for Roof Live Load, enter Reduction Factor for Size of Tributary Area (R₁) & Reduction Factor for Slope of Roof (R₂) and hit the calculate button. Here is how the Roof Live Load calculation can be explained with given input values -> 18.18 = 20*1.01*0.9.

FAQ

What is Roof Live Load?

The Roof Live Load is defined as the live load for a roof which is equivalent to 20 times the product of reduction factors for tributary area and slope of roof and is represented as L_f = 20*R₁*R₂ or Roof Live Load = 20*Reduction Factor for Size of Tributary Area*Reduction Factor for Slope of Roof. Reduction Factor for Size of Tributary Area is the factor by which the size of tributary area reduces & The Reduction Factor for Slope of Roof is the factor by which the slope of the roof reduces.

How to calculate Roof Live Load?

The Roof Live Load is defined as the live load for a roof which is equivalent to 20 times the product of reduction factors for tributary area and slope of roof is calculated using Roof Live Load = 20*Reduction Factor for Size of Tributary Area*Reduction Factor for Slope of Roof. To calculate Roof Live Load, you need Reduction Factor for Size of Tributary Area (R₁) & Reduction Factor for Slope of Roof (R₂). With our tool, you need to enter the respective value for Reduction Factor for Size of Tributary Area & Reduction Factor for Slope of Roof and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Roof Live Load?

In this formula, Roof Live Load uses Reduction Factor for Size of Tributary Area & Reduction Factor for Slope of Roof. We can use 1 other way(s) to calculate the same, which is/are as follows -

Roof Live Load = 20*(1.2-0.001*Tributary Area)*Reduction Factor for Slope of Roof

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