uses LiDAR laser technology to scan Looking Better
the concrete curb and transfer the di- in Pictures
Technologies such as
mensions into a layout drawing from
In addition to laser
drones are being used on jobsites
to help contract glaziers streamline
and improve labor and production
which we created the customized fab- scanning, there are other new
rication tickets for all of the stainless technologies emerging on jobsites.
steel parts.Everything ﬁt together with These include the use of drones and efﬁciencies.
little additional effort for my installers.” other photographic measuring tools.
The process in total cost Jackson Photogrammetry, for example, is a
As Jackson explains, “Many contract
about an hour of drive time, two hours technology that involves creating mea- glaziers ﬁeld-verify every job, but many
on site to get six scans and a couple days’ surements from photographs. Jackson projects require materials with long
work of data entry into a model that his says his company has worked with this lead times that must be ordered from
engineering department could then use as well. The project involved a drone the dimensions shown on the contract
to create the fabrication drawings.
equipped with a high-deﬁnition cam- documents.Since‘time is of the essence,’
The accuracy [of the work] and the era.As the drone circles the building— the sooner you identify and notify the
amount of time this would have taken in this case a ten-story building—it general contractor of a dimensional,the
otherwise was well worth the invest- takes high-deﬁnition photographs of better the outcome is for everyone.”
ment,” he says.
Bob Linford,vice president of the Gi- nition pixels of different points of the Making it Work for You
roux Glass operations in Los Angeles, building structure can be triangulated He adds that surveying early on before
each building elevation. The high-deﬁ-
is also interested in what laser scan- to at least ¾-inch accuracy. Jackson the work begins allows the contract gla-
ning technologies can offer contract says this may be useful for contract gla- zier to give that report to the contractor.
glaziers. While Giroux’s California lo- ziers working with unitized curtainwall
“And if you use one of these services,
cation hasn’t used these technologies, to survey embed placements used for they are trustworthy and have credibil-
the company’s LasVegas team did work the attachment of curtainwall before ity. We can tell the contactor of these
with a subcontractor on the Dolce and the concrete slabs are poured.
Gabbana signage project there. “If the embeds are in the wrong credibility to get the contractor to ﬁx
I ﬁnd it impressive that with these place, it’s expensive to ﬁx,” says Jack- the problem before they’re on site,” says
scanning technologies, it’s possible to son.“With this device,the drone can ﬂy Jackson,who also adds a word of advice.
pinpoint with such precise accuracy around, take a survey and then overlay “Don’t rush to buy the equipment,
cases, and that gives glaziers power and
the exact locations of such things as onto drawings to see if embeds are in hire an engineering ﬁrm that has the
cables or anchor points. That’s so im- the correct location before the concrete right technology to help you with your
portant when you consider that an is poured.”
ﬁrst job before making the investment.
anchor in the wrong place could poten- He adds, “The costs to ﬁx an incor- That way you can make sure you’re get-
tially destroy the entire structure with rect embed placement can be very ting what you want.” n
post-tension slab,” he says. “It’s amaz- expensive. With this technology, a
ing that they can even scan concrete to drone ﬂy-by survey can be overlaid
identify and locate rebar, and to record onto embed layout drawings to ver-
E l l e n R o g e r s is the
editor of USGlass magazine.
Follow her on Twitter @
EllenGRogers and like her on
Facebook at usgellenrogers to
what you’ve scanned. Lasers provide ify correct placement before con-
extremely accurate lines that can be crete is poured.”
used as plumb lines, andnd you won’t be
Regardless of the system, these
off by more than /32 of an inch. It’s technologies can offer a lot of ad-
vantages for contract glaziers.
May 2017 | USGlass, Metal & Glazing