"Smart fans update a long-established technology, and have the potential to both save energy and offer comfort in today's air tight buildings
," says Kevin Powell, Director of the Green Proving Ground Program.
On a number of job sites, customers value the small size of these machines and their maneuverability characteristics to get in and around tight buildings
Architectural changes following the oil shocks of the 1970s, especially the construction of "tight buildings
," were found to have health consequences.
General heat recovery capabilities when linked to the ventilation-exhaust systems bring us full circle to our discussion of tight buildings
needing good ventilation.
'More and more, people are living in tight buildings
with wall-to-wall carpets and double glazing.
But there were no tight buildings
, power was cheap and nobody knew there was going to be a problem with the ozone layer.
Domesticated rabbits and chickens, especially young ones, should be kept in tight buildings
and when outside, good fences are important.
Combined with an activated carbon impregnated media, Zeozorb-Plus is effective for HVAC filtration in air tight buildings
, print rooms and laboratories.
Nevertheless, according to the Environmental Protection Agency, tight buildings
where the ventilation is inadequate may contain indoor pollutants at various levels-whether people are happy with their jobs or not.
However, smart building management has come a long way "from the original tight buildings
of the 1970s," notes Chris Pesek, director of integrated facilities management at Jones Lang LaSalle (JLL), a professional services and investment management firm.
Today, tight buildings
, less windows, solid roof decks, and the addition of roof deck insulation has reduced ventilation from its once natural functional state.
Indoor air pollution was first classified as "tight building
syndrome" during the energy crisis of the 1970s.