HomeMy WebLinkAboutEngineering letter T reasure Harvey E. Koehnen
Coast :. Professional Engineer#32831
B Uildih91 Architect_#AR0009471
E ngineersr Certified General Contractor#CGCO24776
Inc.
February 10, 2017
To: St Lucie County Building Department
Re: Permit# 1701-0238
Owner: Wynne Building Corp&Robert Adams
Address: 7 Verde Vista,Fort Pierce,FL.
Contractor: Tradewinds Roofing
Arch/Eng: TCBE,Harvey Koehnen
To Whom It May Concern:
The dry-in and metal drip edge inspections were missed on the above referenced roofing permit. We
were retained to certify these installations. The following is our findings:
Underlayment for metal roof:
We found the contractor utilizing JM PP28 Underlayment(FL1 046.1-R7).
According to our permit calculations the worst case scenario(in Zone 3)we
required 5"O.C.in lap and(2)rows @ 7"O.C. In actuality the contractor did
5"O.C. in lap and(3)rows @ 6"O.C.throughout the entire roof far exceeding
our requirements we came to thru rational analysis in our original permit
package.
Metal flashing and Drip edge:
We also inspected all metal flashing and drip edge and found that it was
26 ga metal fastened again with ringshank roofing nails properly set as
— - required.
FILF-
" 4
T C B E,Inc. 7205,Elyse Circle Phone (772)466-5509
Port Saint Lucie Fax (772)489-3035
E-mail hkoehnen@tcbeweb.com"
Florida 34952-8212 Web site http:Hwww.tcbeweb.com
Findings:
All work done was in accordance with the FBC 2014 5 h Edition, good construction practices, and
product approvals. All nailing will resist all required loads placed upon the structure as determined by the
FBC and local ordinances.As such we are certifying the installation of the underlayment as actually done
in field far exceeds our requirements as per our original calculations.
If you have any questions,please call our office.
Respectfully Submitted,
32831 ;2
�90:•.'STATE OF :...........
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Harvey E.Ko hnen,PE 32831
President
T C B E,Inc. 7205 Elyse Circle Phone (772)466-5509
Port Saint Lucie Fax (772)48973035
Florida 34952-8212 E-mail hkoehnen@tcbeweb.com
Web site http://www.tcbeweb.com