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DETERMINATION OF AIR LEAKINESS OF BUILDING ENVELOPES USING PRESSURIZATION AT LOW VALUES.

Author(s) : LYBERG M., HONARBAKHSH A.

Type of article: Periodical article

Summary

INVESTIGATES A METHOD USING LOW PRESSURE DATA TO ESTIMATE THE AIRTIGHTNESS OF BUILDING ENVELOPES AND WHICH EXPRESSES THE AIR LEAKINESS IN TERMS OF THE NON-DIMENSIONAL RELATIVE LEAKAGE AREA. STATES THERE IS A GOOD CORRELATION BETWEEN THE RELATIVE LEAKAGE AREA AND THE RATE OF AIR EXCHANGE AT A PRESSURE DIFFERENCE OF 50 PASCALS. THE METHOD DOES NOT APPEAR TO BE SENSITIVE TO FACTORS SUCH AS WHETHER A BLOWER DOOR OR A KITCHEN FAN IS USED FOR THE PRESSURIZATION OR WHETHER THERE IS A CONSTANT PRESSURE DIFFERENCE ACROSS THE BUILDING ENVELOPE CREATED BY THE OPERATION OF THE VENTILATION SYSTEM. THE METHOD GIVES THE SAME VALUES OF THE RELATIVE LEAKAGE AREA FOR LOW PRESSURE DATA OR PRESSURE DIFFERENCES IN THE RANGE FROM 10 TO 70 PASCALS. THE ERROR IS LESS THAN 20%. (INT. BUILD. SERV. ABSTR., GB., 25, N 2, 1990/03-04, 90-00407.

Details

  • Original title: DETERMINATION OF AIR LEAKINESS OF BUILDING ENVELOPES USING PRESSURIZATION AT LOW VALUES.
  • Record ID : 1990-2501
  • Languages: English
  • Source: Swed. Counc. Build. Res. - CBR D19:1989; 25 p.
  • Publication date: 1989
  • Document available for consultation in the library of the IIR headquarters only.

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