Investigating Wind-Driven Rain Intrusion in Walls with the CARWASh

Charles R. Boardman; Samuel V. Glass

Treesearch

Investigating Wind-Driven Rain Intrusion in Walls with the CARWASh

Formally Refereed

Authors:

Charles R. Boardman, Samuel V. Glass

Year:

2013

Type:

Full Proceedings

Station:

Forest Products Laboratory

Source:

Published by ASHRE 2013, Thermal Performance of the Exterior Envelopes of Whole Buildings XII International Conference; 2013; 11 p.

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Download (PDF 688 KB): https://research.fs.usda.gov/download/treesearch/45303.pdf

Abstract

Wind-driven rain provides the primary external moisture load for exterior walls.Water absorption by the cladding, runoff, and penetration through the cladding or at details determine how a wall system performs. In this paper we describe a new laboratory facility that can create controlled outdoor and indoor conditions and use it to investigate the water management performance of a typical exterior wall assembly. Specifically we have quantified how much water gets past the cladding and hits the water-resistive barrier under particular conditions for a common lap siding.

Keywords

CARWASh, wind-driven rain, moisture, intrusion, siding, HAM modeling

Citation

Boardman, C.R.; Glass, Samuel V. 2013. Investigating Wind-Driven Rain Intrusion in Walls with the CARWASh. Published by ASHRE 2013, Thermal Performance of the Exterior Envelopes of Whole Buildings XII International Conference; 2013; 11 p.