What Is the Objective of Flat Roof Initial Sizing?

The objective of an initial sizing is to give the customer a calculation where the combination of the roofing membrane and the fastening combination has been considered.

 

How Flat Roof Areas Are Divided for Wind Load Calculations

It comprises different surfaces, consisting of the corner area, the outer surface, the inner surface, and the inner area.

 

How Initial Sizing Determines Fastener Quantities and Spacing

The initial sizing provides an indication of the necessary number of fastening elements per area and defines the distances.

Why Wind Uplift Testing Supports More Accurate Roof Design

As already mentioned, the results of a wind uplift test can be used as valuable information in the initial sizing. In the next part of our guide, we will discuss what this means and how it is carried out. We will also explain the wind load calculation according to DIN EN 1991-1-4.