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Avoiding Water Penetration in Masonry Veneers
(RJH001) |
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Because a single wythe of any type of masonry
will not keep all of the water out, all of the
time, a system has been developed which does
keep all of the water out, all of the time. This
system is known as a drainage wall system—a
combination of a veneer, an air space,
through-wall flashings, and weepholes. “Avoiding
Water Penetration” explains how to design a
drainage wall system, including selecting a
mortar joint profile and a mortar type, setting
the width of the air space, sorting out flashing
materials, placing weepholes properly, detailing
through-wall flashings, and specifying the
bricks used in the veneer.
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Movement in Clay Masonry Veneers (RJH002) |
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Although rarely seen in single family houses,
movement joints are used to prevent cracking of
masonry in other structures. Learn what causes
movement, how much movement to expect, how to
control movement, and where to place movement
joints. Sealants, an integral part of a movement
joint, are also discussed. Learn why a C.J. is
not a M.J.
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Detailing Masonry Veneers to Avoid Water
Penetration and Cracks (RJH003) |
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A combination of an abridged “Avoiding Water
Penetration” and an abridged “Movement in Clay
Masonry Veneers.” (1 1/2 hours/1 1/2 Learning
Units)
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Mortars for Masonry Veneers (RJH004) |
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Masonry veneers have four parts; design, the
masonry units, the mortar, and workmanship.
Mortars are usually the least understood. Learn
about masonry cements and Portland
cement/hydrated lime mortars. Understand the
difference between a proportion specification
and a property specification. Learn which mortar
is used where.
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Cleaning New Masonry (RJH005) |
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Many good buildings have been damaged by bad
cleaning. “Clean it with acid” is often not the
right way. Using it “straight” is almost always
wrong. Learn how to clean anything. Come to
understand how chemicals help clean masonry.
Explore the process of cleaning masonry,
starting with learning how to avoid cleaning.
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Masonry Veneers with Stud Back-up (RJH006) |
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Masonry veneers anchored to wood stud and steel
stud back-up systems are very popular in both
residential and non-residential construction.
While wood stud systems are almost intuitive and
are very forgiving, steel stud systems require
more care. Explore the basics of detailing any
masonry veneer/stud back-up system. Learn about
air spaces, the correct mortar type, selection
of steel studs, fasteners, and ties. Consider
the location of insulation and vapor retarders.
Also, how wood stud systems differ. |
