Avoiding pressure problems
Swisspacer has expanded the scope of its online tool, Caluwin, so that IGU and window manufacturers can easily check if the use of Swisspacer Air is able to achieve the pressure equalisation required to avoid the damage caused by climatic loads.
These loads include different climatic zones and height differences.
The online claculator also makes it possible to determine whether the planned insulated glass units will achieve a service life of more than 15 years as required by DIN EN 1279-2 (‘Glass in building’).
“Manufacturers of insulated glass units and window makers can perform their own feasibility analysis with the new tool,” Rutger van Eijk, sales director Europe at Swisspacer, said.
“Should it not be possible to use Swisspacer Air to equalise the pressure, then alternatives can be simulated. So, in this case, too, we can find a solution together with the customer.”
The online tool is very easy to use, the company said. Processors enter the required parameters into a selection screen, which include the type and coating of the glass, double or triple glazing, the size of the cavity, and the dimensions of the unit.
While performing the calculation, the application takes into consideration both the maximum height difference between production and installation location and the respective climatic zone.
“Thanks to the new tool, manufacturers of insulated glass units and window makers no longer have to rely on the ‘trial and error’ approach,” Rutger said. “They now have a safe calculation basis available to them for the planning process.”
