CPM Terms to learn
What is 1:2:3 mix for concrete?
A common concrete mixture is 1:2:3, that is 1 part cement, 2 parts sand, and 3 parts rock or gravel.
What is a lintel?
A horizontal support of timber, stone, concrete, or steel across the top of a door or window.
Building requirements for indoor temperatures
Building owners are required to maintain indoor temperatures at: Minimum of 68 degrees when outdoor temperatures falls below 55 degrees during the day. Minimum of 62 degrees overnight, regardless of outdoor temperatures. Building owners are legally required to provide hot water at 120 degrees year-round.
What is NYC Local Law 1?
Local Law 1 is a law concerning the prevention of lead poisoning through the remediation of lead paint hazards in housing. It was enacted in 1982.
What is Local Law 77?
Local Law 77 (LL77) requires that any diesel powered off road vehicle used by the City use Ultra Low Sulfur Diesel (ULSD) Fuel and Best Available Technology (BAT) for reducing emissions of pollutants.
Pedestrian Ramps slopes
Maximum Running Slope: 8% = (1:12) = 0.25" per 1' Maximum Cross Slope: 2% (1:48)
OSHA
Occupational Safety and Health Administration
What is a parapet and the minimum height?
Parapet is a barrier/wall that is an extension of the wall at the edge of a roof, terrace, balcony, walkway or other structure. Local Law 40 of 1960 amended the 1938 NYC Building Code to require that buildings greater than 15 feet in height have parapet walls that are a minimum of 42 inches (3.5 feet) in height.
What is Labor Law 220?
Prevailing wage rates for construction work on New York City public works projects.
Fire requirements on building doors
*to verify* 1. Doors to stairways and elevators, and unsprinklered communicating spaces shall be selfclosing fire doors having a 1.5 hour fire protection rating. 2. Doors to unsprinklered communicating spaces or sprinklered communicating spaces may be either: (a) self-closing fire doors having a 3/4 hour fire protection rating, or (b) glass or other noncombustible doors installed in conjunction with automatic fire doors having a 1.5 hour fire protection rating, with sprinkler heads installed over the doors on the room side. 3. Other openings - Other openings to spaces shall be permitted, provided they have a maximum length of 8 feet and a maximum height of 8 feet, are glazed by 1/4 inch polished plate glass or equivalent and are protected by automatic fire doors having a 1.5 hour fire protection rating and by automatic sprinklers. Adjoining openings shall be separated from each other a minimum of 3 feet by construction having a 2 hour fire resistance rating.
Classes of fire extinguishers
Class A fire extinguishers are used for ordinary combustibles, such as paper, wood, cloth, and some types of plastic. These extinguishers typically use water or certain types of dry chemicals to either absorb heat or coat the fire. Class B fire extinguishers: Fires that originate from flammable liquids and gas can be extinguished by a class B fire extinguisher. This is the type of extinguisher you'll want to use on a fire caused by oil or fuel. Class C fire extinguishers are effective against electrical fires from live wires, panels, and circuit breakers. The extinguisher works by releasing materials that stop the conduction of electricity. Class D fire extinguishers are used on combustible metals. These include magnesium, sodium, aluminum, and titanium. Class K fire extinguishers are commonly used in restaurant kitchens, class K fire extinguishers can effectively put out fires caused by cooking fats, greases, and oils. They use a process called saponification by releasing an alkaline agent to create a foam that traps vapors and puts the fire out. Multipurpose Extinguishers Most portable extinguishers are rated for use with more than one classification of fire. For example, an extinguisher with a BC rating is suitable for use with fires involving flammable liquids and energized electrical equipment. An extinguisher with an ABC rating is suitable for use with fires involving ordinary combustibles, flammable liquids and energized electrical equipment. An extinguisher that is rated for use with multiple hazards should include a symbol for each hazard type.
What is HEPA?
High Efficiency Particulate Air (HEPA). To qualify as HEPA an air filter that will remove any particle, including bacteria, greater than 0.3 microns.
What is Local Law 11?
Is the law for New York City's "Façade Inspection Safety Program" (FISP) that requires NYC buildings taller than six stories to have their facades inspected and repaired every five years.
What is LEED?
Leadership in Energy and Environmental Design
What is LEED and who developed it?
Leadership in Energy and Environmental Design and was developed by the U.S. Green Building Council (USGBC)
LEED Buildings rating system
Sustainable Sites 26 Water Efficiency 10 Energy and atmosphere 35 Materials and Resources 14 Indoor Environmental Quality 15 Innovation in Design 6 Regional Priority 4 Total Possible Points 110 Platinum: 80+ points earned. Gold: 60-79 points earned. Silver: 50-59 points earned. Certified: 40-49 points earned.
Distance from lowest balcony to ground in buildings
The distance from the lowest balcony to the ground or safe landing shall be not more than sixteen feet (16'-0") except that in existing multiple dwellings where due to structural conditions, such as plate glass store fronts, etc., it is not possible to erect such lowest balcony within sixteen feet (16'-0") of the ground, the Department of Buildings may permit such balcony to be erected at a height of not more than eighteen feet (18'-0") above the ground.
