Noise From Ventilators On Roof On Roof Nyc

New york city department of environmental protection the following is intended to provide guidance and example resources for noise control of building exterior heating ventilation and air conditioning h vac equipment.

Noise from ventilators on roof on roof nyc.

The patter or even the roar of falling rain or hail popping and cracking noises perhaps due to thermal expansion and contraction of roof coverings metal roofing or roof structure and transmitted noises from other external sources such as low flying aircraft or nearby trains or auto truck traffic from a nearby highway. I need a roof ventilator eave vents and dragging air from upstairs is pretty much pointless. An outdoor air intake opening with gross area of more than 144 square inches 0 0929 m 2 shall be provided with fire dampers and smoke dampers or combined fire and smoke dampers when such opening is located as follows. I am an owner of an apartment in a residential building.

Less than 15 feet 4572 mm from a lot line. The fans start in the morning and end in the evening. Above us is mechanical equipment mounted to the flat roof. Corrugated roofs also have lots of air gaps under the ridges unless the builder went to a lot of effort to block them.

This is only possible because of roof ventilation and the best roofing companies always incorporate proper ventilation. In my experience limited as it is tile roofs leak air like a sieve. All day in the summer the sun beats down on your flat roof absorbing the heat and passing it through to the deck and insulation inevitably some of this heat gets through and is trapped in the air separating the home from the roof. In warm climates the roofs ventilation will help to keep the house cool saving money on cooling costs.

The start up is loud and then once they re up and running the whole system is very loud and can be heard throughout. Green builders won the contract on an emergency basis after nycha had a difficult time finding vendors to do the work. There are fans and vents that serve as the ventilation for the building s kitchens and bathrooms. In cold climates the roofs ventilation will help prevent ice and water dams.

There will always be some degree of noise associated with a powered roof ventilator if no other reason for the fact that there is a large amount of air movement forced through a venturi opening and of course the noise that a motor makes while under load. Ventilation and air conditioning. Less than 30 feet 9144 mm in any direction from any opening in another building. Last month nycha awarded green builders group new york llc of brooklyn a 10 4 million no bid contract to clean out vents and install new roof fans at thousands of public housing buildings across the city.

The new york city noise code balances the important reputation of new york as a vibrant. Roof noises may be described as those attributed to an obvious source. Noise control for building exterior heating ventilation and air conditioning equipment guidance sheet 9 24 13 distributed by.