Roles

While the cavity size may differ between commercial, residential and stone veneer applications, it is important that every project allow for proper water drainage and air movement.

V

WITHIN THE LAST FEW YEARS, THE GROWING CELLULAR PHONE INDUSTRY HAS UNDERTAKEN THE TASK OF ADDING THOUSANDS OF NEW ANTENNAS TO IMPROVE THE QUALITY OF ITS SERVICE. Since they have the need to locate antennas at regular intervals throughout larg

MASONRY CHIMNEYS

The strength of the masonry and the thickness of the structural chimney shell had to be sufficient to withstand the weight of the structure and the wind forces associated with its height and projected wall area.

In cas

MASONRY CHIMNEYS
On the interior of the chimney, particularly at the top region just below the chimney cap, the effect of chemical attack combined with freeze/thaw deterioration is also the most significant factor. And, because this region of the ch

MASONRY CHIMNEYS
On many chimneys, the top of the wall is capped with a cast iron or steel cap. Over the years, either the segmental cap sections or the connecting bolts that join them will tend to corrode, rendering it a hazard. In many instances,

Brick Industry Association

FLASHING
FLUE LINER
BACKER ROD
AND SEALANT
CONCRETE CROWN
liner and extended down the outside to lap the first piece of flashing, as shown in Figure 3. For further information on chimney crown flas

MASONRY CHIMNEYS

One of the primary causes of vertical crack formation in masonry chimneys is that of corrosion-related expansion of embedded metal features in their walls. The concept is that as iron or steel oxidizes, it expands similar to th

73
YEARS

HOHMANN & BARNARD
THE LEADER
IN MASONRY AND FLASHING
SYSTEMS

X-SEAL
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2 X-SEAL TAPE

HOHMANN & BARNARD'S
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FEATURED ANCHOR! The new X-SEAL

The good news is that more construction companies are implementing drug-free workplace programs that involve drug testing.

"Drug use was not running rampant through our company, but as we have come to realize, even one user on the job

DRUG TESTING
tors' attentions: drugs or alcohol are involved in 47 percent of serious workplace accidents and 40 percent of fatalities in these accidents, and the average annual cost of a substance abuser in the workplace is $7,000.

Lang sa

DRUG PANELS
that we would lose 30 out of the 80 people we had in the field. We only lost three."

Four weeks before drug testing started, the company held a special meeting to inform employees about the testing and advised them to "clean up

DRUG TESTING
"A hair test is good for pre-employment and random tests because it shows a history, not just a couple days," Davis said. "It's not the test to use for a post-accident test."

Davis and Cholakis said that, although urine testing

DRUG TESTING

McCally stated the next step is to have a written drug policy in place that concurs with the laws in every jurisdiction and state in which the company does business.

GBC Concrete's Daniel added that many states have drug-t

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DRAINAGE
The Role of the Cavity Space in Masonry Construction

By Jim Keene, President
Keene Building Products

MOISTURE IS COMMONLY KNOWN TO CAUSE PROBLEMS IN ROOFING AND FOUNDATIONS, BUT IT CAN ALSO PRESENT MAJOR PROBLEMS IN M