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<br /> Installat�on of Panels
<br /> R�of Pitch ,
<br /> Gulf Coast roofing panels require a ce in degree of pitch to ensure proper wa�er drainage,
<br /> Florida Building Code allows a minimurm pit h of 2/12 far T'iuff-rib�panels as Ic►ng as Iap screws
<br /> and sealant are applied to the laps to prevent water from siphoning over the ribs (see Fig. S on p, 4}.
<br /> Lap screws and sealant are aptional when the p��tch is 4/12 or greater(4/12 pitch means that there is 4
<br /> in.ches of rise for every 12 inches running horiz�ntally). As a generai principle,the less steep the roof,
<br /> and the mare necessary also that sealant be used at all side-laps. Consult our representative for
<br /> recommendations for your particular roof pitch�and about roofmg options if you have less than a 2/12
<br /> pitch.
<br /> �oof Freparat�on
<br /> Oil-ccznning is a wave-Iike,rippled app �arance extending up the length of the ganel after it has
<br /> been installed on the roof Any irregularities i�the roof, including uneven piywacrd jaints,warped
<br /> plywaod,uneven trusses,poor application of underlayment,the use af button caps with felt paper,etc.,
<br /> can promate oil-canning. Care sha�zld be taken to provide a flat,uniform su�'ace on which to attach
<br /> the ganels. See page 6 for mare details.
<br /> Roo Application
<br /> Panel installation shauld begin at the g ble end of the raof opposite the prevailing rain-bearing
<br /> � wind(this will provide added assurance against wind-driven rain being forced under the laps). Measure i
<br /> one panel width in fram the roof edge. At this�point chalk a Iine from ridge to eave. Place t.he Ieading �
<br /> '� edge of the first panel along this line. It is extr�meiy important that this panel be laid square to filie eave
<br /> and ridge so that the remaining panels will Iina�up square on the roof frame.It is wise to have a person
<br /> at the eave and at t,he ridge to ensure that the proper panel coverage is being maintained acrass the roof.
<br /> Also be sure that the panels are properly side-l�apped(see fig. 7 on page 7}.
<br /> In applications where end-Iapping is n�cessary,the upper panel on fihe slope should lap over the
<br /> panel that is lower on�he slope by about 12 inches. Lesser roof pitches require a greater amaur�t of
<br /> panel ovexlap. AIl end-lap apptications shoulc�use twa horizontal rows of butyl sealant tape across the
<br /> i panel and praper fastening to provide a maxi�um water seal.
<br /> An overhang of 2 to 3 inches on the eavIe is recommended to provide a drip edge,white anly ]
<br /> inch overhang is necessary where gutters are tised. The open panel ribs at tlie eave can be sealed with
<br /> inside closures. For maximum weatl�er-tightness, a raw of butyl tape can be applied above and beneatiz
<br /> closure material.
<br /> Trimming a d Cutting Steei Fanels
<br /> The best device for cutting steel panel across the profile is either hand snips or a nibbier.
<br /> � Nibblers,and especially Carborundum blades on electric saws,however, da have a tendency to either
<br />' leave hot metal particles that can burn paint s�rfaces or to teave rust marks on ganels and trim. The
<br /> same is true of any filings teft on the roof cau ed t�y the application of screws. Care should be taken to
<br /> brush aIl such particles from raof surfaces aft�r applicatian.
<br /> To cut panels lengthwise: Note carei-iilty where the panel is to be cut, and,using a straightedge, .
<br />� score deeply dawn the Iength of the panel with a shaip-painted utility knife. Folding the panel along the
<br /> score mark, and bending back again if necessary, should produce a clean break in the panel.
<br /> CAUTION! clean all metal shavings aid particles off of roof to avoid unsightly rust stains
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