PAGE OCR 2 – May 2009 – The Ontario Construction Report
CCA honours members at 91
st
Annual Conference
MATTHEW DESROSIERS – The OCR Construction Report Editor
When it comes to recog- said the conference was at-
nizing members for the out- tended by some 700 dele-
standing work that is being gates.
done, no one does it quite “The feedback we’ve re-
like the Canadian Construc- ceived has been overwhelm-
tion Association (CCA). ingly positive,” he said.
At the association’s 91st Delegates enjoyed break-
annual conference on March fast before a keynote presen-
14, the association handed tation by one of Canada’s
out their prestigious Awards most well-known military
of Excellence and Awards of men, Lieutenant-General
Recognition to various in- Roméo Dallaire (ret). Dal-
dustry recipients. The event laire was in charge of the
Danièle Sauvageau, invited guest; Dave Garner, The Danièle Sauvageau, invited guest; Martha George, Presi-
was held at the Hyatt Re- United Nations mission in
Miller Group; and Paul Charette, CCA Immediate Past dent, Grand Valley Construction Association; and Dan
Chair. PHOTO: SHANNON LISTA, SUPERHERO PRODUCTIONS Gueguen, Chair of GVCA. PHOTO: SHANNON LISTA, SUPERHERO PRODUCTIONS
gency at Gainey Ranch in Rwanda during the genocide
Scottsdale, Arizona. there in the early 1990s. ership,” said Hachey. “His Rwandan genocide made for facturers, Suppliers and a more competitive process,
Michel Hachey, CCA di- “Mr.Dallaire delivered a personal achievements and a most passionate keynote Services). he said.
rector of communications, strong presentation on lead- experiences during the presentation.” The CCA Awards of Ex-
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The awards ceremony it- cellence are selected through Please see page OCR4
self followed Dallaire’s
presentation. It follows a
format similar to the ONTARIO TRUSS REPORT
Oscar’s, said Hachey. The
Does your building have Truss Uplift?
award recipient is an-
nounced, followed by a
A truss fabricator is often asked
powerpoint presentation on
about the causes and solutions to con-
why they are receiving the
trolling Truss Uplift. This is also
award. At the conclusion,
known as Partition Separation, and can
the recipient is invited to the
generally be caused by a variety of fac-
stage to receive the award
tors. According to the best available
and say a few words.
data, roof truss movement is responsi-
While all awards are con-
ble for only 20 per cent of the reported
sidered equal, there is a dis-
cases of Partition Separation.
tinction made amongst the
Partition Separation is not limited to roof trusses, but can
12 awards, he said.
also be noticed in homes with conventionally framed roofs.
The CCA Awards of
This problem occurs primarily in the winter months, partic-
Recognition recognize an in-
ularly during the first few years of occupancy. As the build-
dividual for his contribu-
ing “dries” over the course of the first few years, partition
tions to one of the four
separation tends to decrease and/or cease completely.
sectors represented by the
Arching movement in roof trusses is typically due to dif-
CCA Councils (General
ferences in the moisture content between the top and bottom
Contractor, Trade Contrac-
chords of the truss. Arching has not been associated with
tor, Roadbuilder, and Manu-
structural problems such as truss failure. In fact, the stresses
that cause roof truss arching or uplift testify to the structural
integrity of metal plated wood trusses.
Building settlement can result from improperly sized
footings, soil bearing capacity, freeze/thaw cycles or fluctu-
ating water tables, and subsequently can erroneously appear
as roof truss uplift.
Deflection in a floor system or supporting beam may re-
sult in an interior wall that does not act in tandem with the
roof trusses, and creates a separation at the finish line be-
tween the wall and the ceiling.
Partition Separation can be effectively controlled through
good building practices. Roof Trusses should not be rigidly
connected to non-load bearing partition walls. Additionally,
the practice of “floating” the drywall at interior corners with
wood blocking that is held back from the wall/ceiling inter-
section is critical. Lastly, good attic ventilation solves a
number of building deficiencies, not the least of which is
Partition Separation.
Jeff Allan of Phoenix Building Components of Barrie, a
director of the OWTFA, wrote this article for the association.
He can be reached at 1(888) 262-2524 or by email at jeffal-
lan@phoenixbuilding.ca
The Ontario Wood Truss Fabricators Association
(OWTFA) represents the common interests of the truss in-
dustry in Ontario, including promoting the use of wood
trusses in residential, commercial and agricultural structures.
For more information please contact Mike Phillips, Execu-
tive Director of the Ontario Wood Truss Fabricators Asso-
ciation (OWTFA) at 416-235-0194 or www.owtfa.com
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