Vision AGI - Rooflights & Structural Glass Solutions

Rooflights & Structural Glass Solutions

Technical

Understanding rooflight performance

When performance is priority, have you checked the spec?

Posted: Monday 2nd December 2019 | Author: Vision AGI Team

Understanding the performance of a rooflight can be difficult, especially for those of us who don’t have a degree in physics or read British Standards in our spare time.

What does ±2000 Pa serviceability mean? Is it relevant to my project? Do I even need a performance tested rooflight?

Without getting into the boring long-winded codes of the British and European Standards, windows, doors and rooflights should be tested for “weather tightness”. This has three main components to it, air permeability, water-tightness and wind resistance. Continue reading »