INCREASE AIRFLOW. REDUCE ENERGY WASTE. OFFSET CARBON.
DUCT SEALING PROGRAM
ENERGY WASTE IN
BUILDINGS TODAY
ASHRAE estimates most commercial buildings experience 10-25% air duct leakage. This requires HVAC systems to work more than necessary to keep buildings at comfortable temperatures.
A recent study from the Building Commissioning Association quantified duct leakage as a $2.9B problem.
EVERYTHING YOU NEED TO KNOW ABOUT AEROSOLIZED DUCT SEALING
NERVA’s Duct Sealing Program utilizes technology developed by the Lawrence Berkeley National Laboratory. With more than 20 years of use in the field, this technology has a safe solution for any building type.
ENERGY WASTE IN
BUILDINGS TODAY
ASHRAE estimates most commercial buildings experience 10-25% air duct leakage. This requires HVAC systems to work more than necessary to keep buildings at comfortable temperatures.
A recent study from the Building Commissioning Association quantified duct leakage as a $2.9B problem.
BUILDINGS ARE BLOWING
ENERGY DOLLARS AWAY!
Increased Fan Energy
Poor Air Quality
Ongoing Operating Costs
The more air that leaks out of your ducts, the harder your fans have to push to reach the desired space. Duct leakage leads to excess ventilation loads, which in turn drastically increases your energy costs.
Leaks in the return duct allow airborne allergens, viruses, and bacteria to be sucked into the duct system. These contaminants are then spread throughout the facility, compromising air quality for other occupants.
Leaky ductwork is the primary cause of ineffective building exhaust, causing problems with uneven and uncomfortable temperatures that can lead to higher energy bills, and added maintenance costs.
INTRODUCING OUR PROVEN
DUCT SEALING PROGRAM
We combine energy advisory services, experienced technicians and award-winning technologies to eliminate duct leakage and unnecessary energy waste.
The Duct Sealing Program provides a cost-effective,
non-disruptive solution to eliminate energy loss, maximize HVAC efficiencies and reduce carbon footprint.
INCREASE AIRFLOW. REDUCE ENERGY. OFFSET CARBON.
The Duct Sealing Program allows facilities to significantly increase air volume and exchange rates
by rehabilitating ductwork infrastructure and sealing leaky ducts.
As a result, buildings can significantly improve indoor air quality, eliminate unnecessary energy waste and reduce carbon emissions - without the need for costly mechanical upgrades.
COMMON DUCTWORK DEFICIENCIES:
-
Defective infrastructure
-
Leaky Ductwork
-
Poor Installation Practises
-
Aged and antiquated sealing
-
Adjusted ductwork due to retrofits
-
Accidental damage from other projects
-
Clogged coils and diffusers
-
Defective fire dampers
-
Obstructed balancing dampers
-
Acoustic screening restricting airflow
EVERYTHING YOU NEED TO KNOW ABOUT AEROSOLIZED DUCT SEALING
NERVA’s Duct Sealing Program utilizes technology developed by the Lawrence Berkeley National Laboratory. With more than 20 years of use in the field, this technology has a safe solution for any building type.
BUILDINGS ARE BLOWING
ENERGY DOLLARS AWAY!
Increased Fan Energy
Poor Air Quality
Ongoing Operating Costs
The more air that leaks out of your ducts, the harder your fans have to push to reach the desired space. Duct leakage leads to excess ventilation loads, which in turn drastically increases your energy costs.
Leaks in the return duct allow airborne allergens, viruses, and bacteria to be sucked into the duct system. These contaminants are then spread throughout the facility, compromising air quality for other occupants.
Leaky ductwork is the primary cause of ineffective building exhaust, causing problems with uneven and uncomfortable temperatures that can lead to higher energy bills, and added maintenance costs.
INTRODUCING OUR PROVEN
DUCT SEALING PROGRAM
We combine energy advisory services, experienced technicians and award-winning technologies to eliminate duct leakage and unnecessary energy waste.
The Duct Sealing Program provides a cost-effective,
non-disruptive solution to eliminate energy loss, maximize HVAC efficiencies and reduce carbon footprint.
INCREASE AIRFLOW. REDUCE ENERGY. OFFSET CARBON.
The Duct Sealing Program allows facilities to significantly increase air volume and exchange rates
by rehabilitating ductwork infrastructure and sealing leaky ducts.
As a result, buildings can significantly improve indoor air quality, eliminate unnecessary energy waste and reduce carbon emissions - without the need for costly mechanical upgrades.
COMMON DUCTWORK DEFICIENCIES:
-
Defective infrastructure
-
Leaky Ductwork
-
Poor Installation Practises
-
Aged and antiquated sealing
-
Adjusted ductwork due to retrofits
-
Accidental damage from other projects
-
Clogged coils and diffusers
-
Defective fire dampers
-
Obstructed balancing dampers
-
Acoustic screening restricting airflow
Italian study shows ventilation can cut school COVID cases by 82%
Reporting by Gavin Jones and Emilio Parodi
Editing by Mark Heinrich
A pupil receives a coronavirus disease (COVID-19) vaccination at a primary school in Naples, Italy, January 12, 2022. REUTERS/Ciro De Luca/File Photo
ROME, March 22 (Reuters) - An Italian study published on Tuesday suggests that efficient ventilation systems can reduce the transmission of COVID-19 in schools by more than 80%.
An experiment overseen by the Hume foundation think-tank compared coronavirus contagion in 10,441 classrooms in Italy's central Marche region.
COVID infections were steeply lower in the 316 classrooms that had mechanical ventilation systems, with the reduction in cases more marked according to the strength of the systems.
With applications guaranteeing a complete replacement of the air in a classroom 2.4 times in an hour, infections were reduced by 40%. They were lowered by 66.8% with four air replacements per hour and by 82.5% with six air replacements, the study showed.
Most of Italy's schools lack mechanical ventilation systems. Instead, teachers are urged to keep windows open when weather conditions permit.
If the most efficient systems were installed "we could pass from 250 cases per 100,000 students (the alert level set by the education ministry) to a rate of 50 per 100,000," the Hume foundation and the Marche regional government said in its press release.
The experiment was carried out between September 2021 and January this year.
Italy saw a rapid acceleration in COVID cases in December and early January, before a decline from mid-January until a couple of weeks ago.
They are now rising again, driven by a new strain of the Omicron variant, though new hospitalisations and deaths continue to decline.
The country has registered 157,904 deaths linked to COVID-19 since its outbreak emerged in February 2020, the second highest toll in Europe after Britain and the eighth highest in the world. It has reported 13.89 million cases to date.
On Monday the health ministry reported 32,573 new cases, against 60,415 the day before, while the number of deaths rose to 119 from 93.