rainscreen, pressure equalized rainscreen principle

The CMHC consultant identified the use of "rain screen" technologies as the best method to prevent moisture intrusion problems in the wet, mild, coastal climate of British Columbia. A rain screen creates a 3/4 inch drainage cavity between the building's outermost exterior cladding and an underlying moisture barrier. The rain screen drainage cavity is wide enough to break the capillary action and surface tension of water such that gravity will then pull the water that gets behind the exterior cladding down and out through weep holes

"first introduced in the early 1960s, is the pressure-equalized rainscreen design" -Morrison Hershfield Limited, 1990, A study of the rainscreen concept applied to cladding systems on wood frame walls

Rainscreen software:

Introduction to rainscreen

Rainscreen Cladding: adv. & principle

pressure gradien across rainscreen by wind tunnel

A study of mean pressure gradients, mean cavity pressures, and resulting residual mean pressures across a rainscreen for a representative building, by Skerlj, P.S. and D. Surry, 1994

rainscreen as cladding for CMHC

A study of the rainscreen concept applied to cladding systems on wood frame walls, by Morrison Hershfield Limited, 1990

rain screen concept provides pressure equalization and limit water entry into wall

Air pressures in wood frame walls, by TenWolde, A., Carll, C. G., and Malinauskas, V., 1998

--------

An experimental study of pressure gradients and their implications for the design of pressure-moderated rainscreens, by Inculet, D., Surry, D. and Davenport, A.G, 2001

--------

Cavity pressure in rain screen walls , by Fazio, P. and Kontopidisa, T., 1988

--------

Designing exterior walls according to the rainscreen principle, by Brown, W. C., Chown, G. A., Poirier, G. F. and Rousseau, M. Z., 1999

--------

Field performance of rainscreeen wall assemblies in coastal BC, by Peer, L. B., 2005

--------

Leaking brick-clad walls: causes, prevention, and repair, by Beasley, K.J, 1990

vent location

Optimum vent locations for partially-pressurized rainscreens, by Inculet, D. and D. Surry, 1997

design approach

PERSIST -- pressure equalized rain screen insulated structure technique -- design approach, by Makepeace, C. B. and Dennis, B. T., 1998

--------

Potential of rain screen walls to prevent rain penetration: pressurized cavity principle, by Kontopidis, T., Reddy, M. S. and Fazio, P., 1993

--------

Pressure moderation and rain penetration control, by Straube, J., 2001

vents size and location

Rain control and screened wall systems, by Straube, J.F. and Burnett, E.F.P, 1997

--------

Rain penetration control - applying current knowledge (rpc-00), by Lawton, M., Meklin, T., 1999

rainscreen testing by cavity excitation

Testing rainscreen wall and window systems: the cavity excitation method, by CMHC, 1997

--------

The performance of rainscreen walls in coastal British Columbia, by Finch, G., 2007

--------

The rain screen wall system, by OAA, 0

Commissioning Protocol

The rainscreen wall: a commissioning protocol, by Quirouette, R.L., 1996

capillary forces in rainscreen leakage

Water flow by means of capillary action, by Air-Ins inc, 1997

--------

Wrap it up: building houses with the skin on the outside, by Makepeace, C. B., 1999