All our venting skylights are pre-equipped with insect screens, but for the roof windows, we offer optional insect screens which allow you to open the roof window and get fresh air inside without letting the bugs in.

Because the insect screen is placed on the wall, not the roof window, the light shaft opening dimensions determine the size of the insect screen required. Please follow the steps below to order the correct insect screen.
 

1. Measure light shaft dimensions from inside the room. (See picture to the right)
    
2. Choose the ZIL size closest to while larger than your light shaft dimensions.
     (View the roof window size chart for sizing information)
    
3. Order your insect screen.