Local Laws 92 + 94




WHAT DOES IT MEAN?
Any new or existing roof construction/renovation must include the addition of one type of sustainable roofing system.
WHAT ARE THE AVAILABLE SUSTAINABLE ROOFING SYSTEMS?
- Solar panel with a minimum 4kW capacity
- Green roof
- Combination of solar panels and a green roof
WHAT DETERMINES THE SYSTEM TYPE THAT IS REQUIRED?
- Amount of available roof area
- Slope of the roof
- Building’s occupancy classification
WHICH ROOFS HAVE WHAT REQUIREMENTS?
- Continuous area of 200+ sq. ft and a slope under 2:12
- Must have 1 of 3 options
- If solar power capacity is less than 4kW, green roof is the only option
- A minimum solar panel efficiency of 15% must be used
- Continuous area under 200 sq. ft and a slope under 2:12
- Combined sustainable roof is not allowed
- Area must be fully covered with solar panels if above 4 kW capacity
- If less than 4kW, area must be fully covered with a green roof
- Continuous roof area with a slope higher than 2:12
- Solar power system is the only option
- If solar panels have less than 4kW capacity, the roof section is exempt
WHICH ROOFS ARE EXEMPT FROM THE LAWS?
- Roof areas that must be set aside to meet NYC building/zoning requirements
- Roof areas that have mechanical equipment or other important devices.
- Specific areas occupied by stormwater management systems.
- Building setbacks under 25% of the largest floor plate area in the building
- Recreational spaces important for the building’s occupancy classification
- Roofs that cannot accommodate a minimum 4 kW and with a slope above 2:12 that are unsuitable for green roofs.
- Any area NYC Department of Buildings considers unsuitable for either option
WHO CAN DESIGN A ROOF?
- NYS registered design professional
- Contractor with one of the following credentials:
- NABCEP Certification – North American Board of Certified Energy Practitioners
- IBEW-NECA Electrical Journeyman & Apprentice Training – International Brotherhood of Electrical Workers and National Electrical
- Contractors Association
- UL Credential – Underwriters Laboratories