OPTION TWO Poly-Classic Capital Installation Instructions
1 ) To help keep the top of the column in the correct place , you may cut a centering block to fit inside the top of the capital ( Roman Corinthian caps ) or shaft ( Scamozzi caps ).
2 ) For Scamozzi capitals , slide capital over top of column shaft . Mark a line around the shaft 1 / 8 " above the top of the cap . Remove cap . The column shaft must be trimmed at that line . The 1 / 8 " of shaft above the capital is required to transfer the load to the shaft , not the cap . ( Roman Corinthian capitals will carry the load : step 2 is not required )
3 ) Slide capital over top of column shaft . Pre-drill and countersink screws to attach capital or plug to the shaft . Pre-drill and countersink through the cap and shaft , and use non-corrosive screws to attach cap to the shaft .
4 ) Apply construction adhesive or caulk as needed to the top of the cap . All column installations should be flashed if they are placed in an area where water , debris , etc . could accumulate inside the shaft .
5 ) If necessary , jack up the roof where column is to be installed . Raise the column into place , slipping the top over the centering block .
6 ) Pre-drill and counter sink through the capital abacus ( top ) and attch to the ceiling / soffit with non-corrosive screws .
7 ) Attach column at base ( see standard column installation instructions ). Fill all countersunk screw holes , seams , etc . with caulk . Sand , clean and finish according to standard instructions .
ROMAN CORINTHIAN CAPITALS : SCAMOZZI CAPITALS :
Centering Block - fits the inside of cap or plug Centering Block - fits the inside of cap or plug
Cap slides over top of column shaft
Shaft must be trimmed to 1 / 8 " taller than cap
Shaft is not trimmed for Roman Corinthian Capitals . Capital carries the load to the shaft .
( Drawings NOT TO SCALE - illustrations only )