6.6.4 Bay and oriel windows
MUST
The walls of a bay or oriel window must be constructed from the same materials as the rest of the home or from timber. Apart from the window frame, no part of the bay or oriel window may be uPVC.
The walls of a bay or oriel window must be constructed from the same materials as the rest of the home or from timber. Apart from the window frame, no part of the bay or oriel window may be uPVC.