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(/�R 4� � t� `' {�f'�3 F5 f^ � /�.? �L7(� <br /> `qr����`.:..=1'���'S . �?, 1z.�'4r"^ 1.',„:�S L���E14�:����i��'�� `4.,`7*�� !1 �L' t9 � <br /> . .. , <br /> Screw{ urlin)Spacin,� � P�nel la detail I <br /> 12 inch 18 inch,. 24,inch 3�inch ::; <br /> u Lap Scr��v �ppl�r sealan� <br /> � 50 #90 143 ` 95 76 °�- <br /> "� 100 38Q 2$5 190 152 �. � to Iap <br /> � 200 760 57Q 384 304 �: overlag� `� <br /> � 3�t1 1140 855 570 . 456 �.. � � <br /> '� 400 1520 1140 760 608 :: , . ._ --- - , "` <br /> �oo �soo �4a� s�o 7sa � - - . deekin� <br /> m, .600 2280 1710 1140 912 _� purlin-bearing leg � ' <br /> 0 700 2660 1995 1530 1064 ;`� <br /> � S00 3040 228Q i620 12i6 ry <br /> `� -900 3420 2565 1710 1368 :;: Figure 6 On roofs with less than 3/12 pitch, lap <br /> � 700Q 3800 2850 �1900 1520 . screws and butyi tape {or approved roofing <br /> � i1;00��`� 4180 3136 2d90. 1672 ,. sealant) must be applied at the panel lap to keep <br /> i200, 4560 3420 2280 1824 <E= water from overflow3ng the lap. Note that the <br /> �igu e�5 aPBR eanp i'-screvir�a la�f on�rt°` underlap side of the panei has a distinct purlin- <br /> bearing leg that rests on the roof decking. <br /> How to Figure and Ap�ly Screws <br /> Gulf Caast Snpply carries screws in 3 different lengths: 1 inch, 1'/z inch, and 21/a inch. 1-inch screws will <br /> barely penetrate a Ix4,but the Ilh inch are the best aIl-purpose size. 211a-inch waad screws or self- <br /> drilling lap screws are necessaary for attaching ridge caps. The above table (Figure 6) can be used to <br /> figure approximate quantities af screws for varioas puriin spacings and sizes of rot�fs. Far 2-foot spacing <br /> between rows of screws, multiply the total linear feet�of inetal times 2. <br /> Exr�nxple: your order is I250 feet of PBR roofing. 1250 x 2=2500 screws <br /> Please confirm all estimates with your Gulf Coast representative when you place your order. <br /> Codes allaw re-roafing over shingies withaut the use of battens providing the roof has been checked <br /> by a licensed roo�ng contractar to insure levelness arid pullout integrity. <br /> PBR�metal roafing can be separated fram the mo'isture barrier by minimum,nominat i"x 3" yeliow <br /> pine battens spaced on maa�imum 24" centers, or according ta ASCE calculations where applicable. Since <br /> direct contact between press�re#reated inmber and metal roa�ng must be avoided in order to <br /> prevent potential corrosion, Gulf Caast Supply sells only untreated battens. <br /> CAUTIC3N: Battens must be fastened to the raof deck with minimum#6 screws at 12° an-center,ar <br /> two minimum 8d camman or pneumatic nails spaced $" on-center, ar one every 4" on-center(or by <br /> applicable calculations accarding to ASCE?-98). Battens must be installed#o support the entire width <br /> and length of ridge,eave,hip, valley,and gable-end trims. <br /> For solid decking, at least'/a-inch structural plywood{51$" for Metro-Dade new canstruction and far <br /> any high velocity wind zone of 120 and above) supported on rafters at a tnaximum of 24" on center is <br /> required. In residential applications,building cades�equire a piywood deck with the use of#3�felt to <br /> provide adequate thermal and nnoisture barrier protectian. <br /> If care is taken,metal raafuzg application can be aided by gre-driiting pax�els, allowing screws to go <br /> quickly and accurately into the desired spacing.Fre-drilling will work pravrded that pilot holes ar~e placed <br /> accacratelv in the proger locations on panels. Purlin spacing rnust be uniform and carefutiy measured. <br /> (352) 498-�778 • Toll Free (�88� 393-0335 • FAX (352} 498-7852 <br /> � <br /> - ;6 <br /> � <br />