Page 98 - Hong Kong Green School Guide

3. Green School Guide - 3.3 Energy Saving
Hong Kong Green School Guide 96
the installation and the means of escape in roof area;
• Additional concrete footing for solar hot water mounting can help avoid the
need for invasive bolting on roof surface which might damage the existing
waterproofing leading to water seepage issue at a later stage;
• Structural mounting, solar collector and water tank (if applicable) installation
shall be carried out by renewable energy system suppliers;
• Electrical components installation (e.g. heating elements, controls) shall
be carried out by Registered Electrical Contractor & Registered Electrical
Worker;
• Plumbing components installation (e.g. pump, piping), water pressure and
applications to Water Supplies Department (WSD) for proposed system shall
be carried out by Licensed Plumber; and
• System shall be designed to and certified by relevant national / international
standards. For technical standard guidance, useful reference (1) provides
comprehensive information.
d. Professional Help
• Authorised Person (AP) & Registered Structural Engineer (RSE) – Appendix
A (2)
• Registered Professional Engineer (RPE) – Appendix A (4)
• Renewable Energy System Suppliers – Appendix B (6) & (7)
• Registered Electrical Contractor & Registered Electrical Worker – Appendix
B (4)
• Licensed Plumber – Appendix B (5)
Cost Information
The costs for installation and maintenance vary depending upon:
• Existing piping system;
• Structural loading;
• Capacity;
• Usage;
• Region of manufacturer; and
• Maintenance/installation access.
School can contact professionals provided in Appendix A (2) and renewable
energy system suppliers provided in Appendix B (6) (7) for cost and options.
Indicative cost is provided in Appendix F for general reference.