Ductwork airtightness can be defined as the resistance to inward or outward air leakage through the ductwork envelope (or ductwork shell). This air leakage...

project technical report on building and ductwork airtightness estimates the energy impact of envelope airtightness in the order of 10 kWh per m2 of floor...

fan flow measurements are used to determine the ductwork airtightness. The airtightness of ductwork is useful knowledge when trying to improve energy...

TightVent Europe is a platform focused on building and ductwork airtightness issues. The platform's creation was triggered to meet the 2020 targets of...

name for a mastic based duct sealant (UL 181 A-M or 181 B-M rated) Ductwork airtightness#Duct sealing or duct tightening Pookie, the nickname Maureen Johnson...

also be used to measure airflow between building zones, to test ductwork airtightness and to help physically locate air leakage sites in the building...

the envelope in one hour, then ACH = 1. Airtightness improves buildings' energy performance since low airtightness levels imply high infiltration rates,...

building insulation), airtightness is the key in reducing heat transfer due to air leakage (forced or natural convection). Once airtightness is achieved, it...

oriented, created in 2011 and 2012 and focusing on building and ductwork airtightness and ventilative cooling strategies in buildings, respectively. In...

which can then condense if temperatures (e.g. on cooler surfaces such as ductwork) drop below the dew point, creating a damp environment that is hospitable...

reduces heat loss (and gain) by using much higher insulation levels and airtightness than average. Superinsulation is one of the ancestors of the passive...

dehumidifying side, and if a large amount of water has been introduced to an airtight enclosure then oxygen can build up inside the enclosure. Not all dehumidifiers...

including heating, cooling and primary energy demands in addition to airtightness, thermal comfort requirements and non-heating related energy demands...

cools the gas needs cool air to operate. The system has to be completely airtight; if not, the process of thermosiphon will not take effect and cause the...

Victorian double doors. Inside, Richard Trethewey shows us the new metal ductwork for delivery heating and cooling service for the house; he visits the shop...

removing) carpets, checking behind wallpaper or paneling, checking ventilation ductwork and exposing wall cavities. Efforts typically focus on areas where there...

breathed air to escape. The garment was to be constructed from leather or airtight cloth, secured by straps. In the 1860s, John Stenhouse filed two patents...

ionization, are used to sanitize and deodorize uninhabited buildings, rooms, ductwork, woodsheds, boats and other vehicles. Ozonated water is used to launder...

effect on the environment. Modern building techniques have created more airtight homes, forcing many stove manufacturers to design their stoves to permit...

envelope, most often drywall, as well as all ductwork for air conditioning systems, be made as airtight as possible. A small blower, often no more than...

also saw a number of dual-fuel furnaces and boilers made, which utilized ductwork and piping to deliver heat throughout a house or other building. The growth...

that are designed and constructed to provide the principal plane of airtightness through an environmental separator, which has an air permeance rate no...