- Author
-
Lacasse, M. A.
- Title
- Recent Studies on the Control of Rain Penetration in Exterior Wood-Frame Walls.
- Coporate
- National Research Council of Canada, Ottawa, Ontario
- Report
-
NRCC-46889,
- Book or Conf
- Building Science Insight (BSI) 2003 Seminar Series. Proceedings. October 2003,
Canada,
1-6 p.,
2003
- Keywords
-
rainfall
|
walls
|
wood
|
climate
|
gravity
|
air pressure
- Identifiers
- environmental conditions: simulating the effects of wind-driven rain; intensities of water deposition on walls at given locations and specified occurrences; watertightness performance tests; response of walls to simulated climate loads; action of gravity alone; redundancies in construction: second line of defence; significance of air pressure; importance of capillary break; continuity of the second line of defence
- Abstract
- A key design element for exterior walls is the control of rain penetration. Lack of attention to design principles or failure to implement them in the detailing of wall components may lead to premature deterioration of wall elements as has been evident across Canada in past years. There are a number of useful articles focusing on the effects of wind-driven rain and the need for control of water penetration through walls. The ever present need to increase awareness of premature deterioration due to water penetration have incited researchers and expert practitioners to review the evolution of wall design (CTU 9), investigate the importance of pressure equalization in rainscreen wall systems (CTU 17), provide further insights into water-shedding details (CTU 23) and design of walls using rainscreen principles (CTU 34).