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� <br />� <br />PVC roof �nembrane <br />seams are often seaied �nth <br />t�ot �ir weldirtg, b�t soSv�ni <br />weiding is als4 used <br />the membrane is typlc�lly —� <br />secured to the roai sheath�ng <br />with contaci c�ment. <br />mechenical fasleners or <br />bailast J <br />toof — <br />3athing . `'` <br />s���'kr�.. <br />..� , � j'S <br />,? ��� t�1' � <br />tS"' f <br />� <br />. ;%`� <br />. :•�' <br />��� tvP�caliy <br />" ta 10' wfde� <br />