Moisture conditions in a north-facing wall with cellulose loose-fill insulation: Construction with and without a vapor retarder and air leakage

Conference · Tue Aug 01 00:00:00 EDT 1995

OSTI ID:87431

Hagentoft, C E ^[1]; Harderup, E ^[2]

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1. Chalmers Univ. of Technology, Goeteborg (Sweden). Dept. of Building Physics
2. Lund Univ. (Sweden). Dept. of Building Physics

This paper presents the calculated moisture conditions of a wall exposed to a climate equivalent to that in northern Sweden. A north-facing timber wall with a brick facade and cellulose loose-fill thermal insulation is studied both with and without a vapor retarder and air leakage. If the vapor retarder is eliminated from the construction, the moisture levels will increase to unacceptably high values. The construction becomes sensitive to the choice of facing materials and the indoor moisture supply. Air leakage carrying moist air into the construction leads to unacceptably high values even for moderate indoor moisture supplies.

• OSTI ID: 87431
• Report Number(s): CONF-950104-; TRN: IM9535%%62
• Resource Relation: Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) winter meeting and exhibition, Chicago, IL (United States), 28 Jan - 1 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of ASHRAE transactions 1995. Volume 101, Part 1; PB: 1517 p.
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
WALLS
VAPOR CONDENSATION
THERMAL INSULATION
HOUSES
SWEDEN
AIR INFILTRATION