On this site you will find images showing how to install the flashing and roof window.
The installation always depends on the particular situation. Is it an installation in a new house with no roof and no internal walls - or is it an installation in an already inhabited attic? Is it a house with tiles or is it a house with 100 year old slate?
The below installation instructions are split into groups, so you can use the specific parts of the instructions, which are relevant for your particular project.
How to fix the flashing depends on the type of flashing you are using. Please choose your specific flashing and follow the instructions.