1.13.8  Windows and External Doors

Windows and external doors should be designed to be water and weather tight, and having an integral role in the ventilation strategy, including where external glazing exposes building users to direct sunlight. The Contractor shall provide a peak summer time temperature analysis in accordance with CIBSE prediction techniques. Where temperatures are found to be excessive, steps are to be taken to mitigate them.

All windows must be safe and secure in both open and closed positions and secured with key operated locks. Windows must not be hazardous to persons passing by. Any opening windows or blinds that are beyond reach of an average person are to be fitted with electronic controls, a remote means of operation within DDA requirements, and provision should be made for the safe cleaning of windows.

Sample windows and doors should be tested in accordance with the manufacturer's recommendations and all costs for such testing should be met by the Contractor.

Doors are to be designed to withstand heavy usage with minimal maintenance, whilst also maintaining the safety and security of the Stations. The doors must be designed so they can be accessed by all persons using or visiting the Station(s). The design of any access controls should allow safe operation and the required level of security (including any particular sub-security requirements).

Each of the Police and Fire and Rescue Authorities has some specialist door requirements. For example, the Fire and Rescue Authorities in regard to Appliance Bays and the Police Authorities for Custody Suites; these requirements are described in Part 2 of this Output Specification and the Zone Data Sheets.