# Category: Engineering Design Codes

## Determining Thermal Factors for Calculating Flat Roof Snow Loads on Structures per ASCE 7-10

April 26, 2018 Abdul Siraj, P.E.

In this post, I will provide a brief overview of determining thermal factors, Ct, for calculating flat roof snow loads on structures per ASCE 7-10, Table 7-3. The thermal factors are based on the thermal condition of the roof.   Thermal Factors for Structures Based on Thermal Conditions Structures kept just above freezing and other…

## Determining Exposure Factors for Calculating Flat Roof Snow Loads on Structures per ASCE 7-10

April 26, 2018 Abdul Siraj, P.E.

In this post, I will provide a brief overview of determining exposure factors, Ce, for calculating flat roof snow loads on structures per ASCE 7-10, Table 7-2. The exposure factors are based on the terrain category of the location of the structure and the exposure of the roof.   Exposure Factors for Terrain Category B…

## Calculating Flat Roof Snow Loads on Structures per ASCE 7-10, Chapter 7

April 26, 2018 Abdul Siraj, P.E.

In this post, I will provide a brief overview of calculating flat roof snow loads that are specified in ASCE 7-10, Chapter 7. Before diving deeper, it’s a good idea to review the definitions of parameters used in the snow load formula.    Parameter Definitions   Ce = Exposure Factor, ASCE 7-10 Table 7-2 Ct…

## Structural Deflection Limits per International Building Code 2015 (IBC 2015), Table 1604.3

April 20, 2018 Abdul Siraj, P.E.

In this post, I will provide a brief overview of the structural deflection limits of structural elements based on loading conditions specified in the International Building Code 2015 (IBC 2015), Table 1604.3.   Roof Members Deflection Limits Members supporting plaster or stucco ceiling (Live Load) = L/360 Members supporting plaster or stucco ceiling (Snow or…

## Uniform Live Load Reduction Using ASCE 7-10, Section 4.7

April 16, 2018 Abdul Siraj, P.E.

In this post, I will provide a brief overview of how to reduce uniform live loads using ASCE 7-10, Section 4.7. This post does not cover the reduction of roof uniform live loads. .   Uniform Live Load Reduction Formula, ASCE Equation 4.7-1     Parameter Definitions   L = Reduced design live load per…