Water penetration tests of TTW brick walls

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Journal titleBuilding Research Note
Subjectexternal walls; clay bricks; leakages; water flow; rendering; silicon; parging; through-the-wall bricks; Brick
AbstractThis Note reports the results of a study of the water penetration of test walls. Walls constructed of TTW bricks varied greatly in resistance to water penetration when subjected to 5 hours of water spraying. Their performance depended on both the particular brick used and on the mortar, but their generally low resistance to leakage indicated that it is desirable to provide them with an additional barrier to rain penetration. Parging on TTW walls increased their resistance to leakage significantly. A silicone solution applied to the walls, two parged and one unparged, rendered them highly resistant to water penetration.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number1647
NPARC number20377495
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Record identifiere6f27f51-bcc6-40c9-a77b-57cecec7657a
Record created2012-07-24
Record modified2016-05-09
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