Dimensioning

Measuring Instructions
Knall roller fly screen

The long and trouble-free operation of the window screen depends not only on the high quality of its construction but also on its proper fitting and installation. For the screen to fit perfectly, the chosen spot must be correctly and carefully measured.
It is absolutely essential to follow the instructions in the diagrams below.

• A - WIDTH This is the width of the external window recess. If the width of the recess is not the same at all points, the smallest dimension should be taken.
• B - HEIGHT This is the height of the external window recess. If the height of the recess is not the same at all points, the smallest dimension should be taken.

Two Models

Knall's roll-up mosquito nets feature a compact cassette (47mm), side guides (38mm), and an easy-to-use movable profile (65mm). For roof windows, we offer models with a lower profile (15mm), ensuring perfect fitting and easy installation.

Standard

Roof