Specifier Support

Articles

Pre-Production Topics - Triangles
The guide below outlines some of the known limitations of triangle units in uPVC manufacturing.  If in doubt please contact sales@starke.co.nz To calculate triangles, we recommend using  Triangle Calculator ...
Aspect Ratios On Sliders
Aspect Ratio Warning on Sliders The uPVC industry worldwide recommends not to exceed a ratio of 2:1 where the height of the sash should not be more than double the width of sash.  The reason for this is that when the sash gets too high, relative...