Can I still open windows and sliding doors?

Yes you can.

Everyone likes opening the sliding doors and enjoys hosting friends and family in the outdoor living area and connecting the inside and outside of their homes.
Carbonlite homes perform at their best with a closed building envelope. However that does not mean you can’t open the door and windows as you like. It is designed to suit your lifestyle and puts you in control of how much of the outside you want in your home.