The manufacturer’s website will usually have this information readily available. Alternatively, the Cool Roof Rating Council (CCRC) provides a searchable public database for all products that have been tested by the organization.

CALGreen and Los Angeles Green Building Codes are available to view on our website.

The report can be prepared by commissioning agents and any other trained personnel with experience on projects of comparable size and complexity.

Kitchen exhaust with intake from the kitchen ceiling register and bathroom exhaust can be combined using the same exhaust duct. Kitchen exhaust firm a kitchen hood shall be combined with bathroom exhaust.

Yes, but with conditions. Residential hoods may be installed in employee kitchen areas, community centers in residential buildings, churches and similar areas that are not designed for the selling of food to the public.

Yes, but with conditions. Contact Mechanical Plan Check for more information.

Plan check is required when the aggregate cooling or the heating in the building exceeds 500,000 BTU/hr.

A hood is not required for residential kitchens. However, it is required to provide kitchen ventilation for removing moisture.

No, plan check is not required for ductless window units.

Residential buildings up to 3 stories in height shall have filters with Minimum Efficiency Reporting Value (MERV) of 6. Residential buildings over 3 stories in height have no requirements for MERV values. All non-residential buildings shall have filters with a MERV rating of at least 8.