| The Lakewood
High School Natatorium roof was in terrible shape
and was in dire need of replacement. Because of the
persistent problems with standing water, a new approach
was used in the design for the roof drainage. Absolute
Exteriors, Inc, the installing contractor, enrolled
in a new program entitled The Certified Drainage Program
(CDP). The CDP Program was used for the first time
on a roof project in Northeast Ohio and proved to
be an extremely successful approach to drainage.
The Natatorium roof was a worn out
Goodyear EDPM Rubber Roof System. It had a 1/8”
per foot insulation slope to the drains, and suffered
from falling seams, flashings, and inadequate drainage.
The replacement went out to bid in June 2005 and was
to be completed before the start of school –
August 28th – which presented a challenge to
all companies bidding.
Since the building housed a
pool, the roof required a vapor barrier to be installed
first because of moisture build up. GPD spec’d.
a 10-mil polyethylene protected by a 1/4” layer
of Dens- deck (a gypsum based underlayment board).
Two layers of 2” poly-iso board were then installed
over the dens-dek, then the tapered system on top
of that. The final layer was another layer of ½”
primed Dens-dek. The rubber membrane was then installed,
using the fully adhered method, over the top of the
Dens-dek. The installation was finished off with button
top walk pads and a pre-manufactured Fascia –Coping
System. The roof was inspected by the Membrane manufacture
for warranty issuance and earned the highest score
in the Northeast Ohio area for 2005 installations
with RPI. “This roof was the best installation
I saw and inspected this year,” said Wendell
Hershberger, the RPI warranty inspector. Great opportunity
and preparation met, and it was successful.
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