Roles

LARGE ATTENDANCE IN CHARLESTON

IMI Marketing Meeting a "Great Success"

Thanks to the contributions of authoritative speakers in masonry-related fields, plus active participation of masonry industry delegates, the 11th annual marketing

New Symbol for Union Masonry Craftsmen, Contractors
A new symbol, "The Sign of a Masonry Pro," is being introduced throughout North America in a major campaign to create a greater awareness of the skills and capabilities of union masonry craftsmen a

Masonry Research Foundation
Approves Broad Research Agenda

The Masonry Research Foundation has given approval to a masonry industry research agenda containing 57 projects involving design, construction and environmental issues that were deve

IMI continued from page 35

able influence on the urban building market.

IMI Board Chairman Eugene George noted that the 1980 program calls for an increase in Institute expenditures, but at the same time has a great deal of flexibility b

Wythe

Because of the complete separation of the exterior brick wythe from the rest of the wall and the lack of restraint, the exterior brick wythe will undergo its maximum of expansion and contraction due to thermal changes. Therefore, the numbe

The vapor resistances are:
4-in. tile 0.333
Insulation 0.008
4-in. brick 0.480

0.821



The vapor pressure differential is 50 per cent of saturated vapor pressure at 75 deg (0.4375 in. Hg) minus 90 per cent

Mason Contractor News
Published by The Mason Contractors Association of America, 208 S. La Salle St., Chicago 4, III.

Caracas Investigation
An extensive on-the-spot investigation of structural damage from the July 29 earthquake at Carac

Right-A 4 ft. by 8 ft. brick wall specimen being prepared for a transverse strength test. An air bag placed between the wall and a rigid backing board is inflated to subject the specimen to a uniform transverse load over 7 ft. 6 in. span.
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This detail of the load-bearing brick columns of the First National Bank, Loveland, Colo shows the interesting design created by the alternating column types. See next page for photograph of complete elevation.

BEARING WALL CONFERENCE

People & Events
President elect of the Dayton, Ohio, Chapter is Leonard Hoying. Other officers are: William Jones, Vice President; Percy Bilbrey, Secretary and Edgar Stamper, Jr., Treasurer.

The Eastern Seaboard Apprenticeship Conference w