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PVC DESIGN TABLE - RE-COVER-MECHANICALLY ATTACHED <br /> Insulation/Substrate Insulation/Slip Sheet Membrane Type <br /> Attachment <br /> Existing Roofing <br /> a 3/6 oz. <br /> System y � Gypsum Wood Fiber/ a VersaShield® Fleece <br /> Mech Fast. Adhesive/LRF ISO Board Perlite' EPS/XPS Fanfold (85/170 g) Sold" None Smooth (FB) <br /> Polymat <br /> Smooth Yes Yes5 Yes Yes Yes Yes3 Yes3 Yes Yes Yes <br /> BUR/MB Yes Yes5 Yes Yes Yes Yes Yes Yes Yes <br /> Single-Ply Yes Yes5 Yes Yes Yes Yes3 Yes3 Yes Yes Yes <br /> Membrane Yes yes Yes Yes Yes Yes Yes Yes Yes <br /> Granule-Surfaced Yes Yes5 Yes Yes Yes Yes3 Yes3 Yes Yes <br /> N - . <br /> BUR/MB Yes Yes' Yes 'Yes Yes Yes Yes Yes Yes <br /> Gravel-Surfaced Yes Yes5 Yes Yes Yes Yes3 Yes3 Yes <br /> BUR/MB6 Yes Yes5 Yes . Yes Yes Yes Yes Yes <br /> Yes YeS5 Yes Yes Yes Yes3 Yes3 Yes <br /> Standing Seam Met <br /> Yes YeS5 Yes Yes Yes Yes Yes <br /> ' Roof moisture scan required for use of perlite/wood fiber in re-cover roofing systems. <br /> An approved cover board is required when XPS is used as flute fill material. <br /> 3•XPS/Fanfold in combination with a 3/6 oz.(85/170 g)polymat separator. <br /> `Fanfold to be used as an separator board only. <br /> 5.Low rise foam or hot asphalt can be used for cricket and saddle attachment.If specification requires insulation to be adhered in a mechanically attached system,use foam adhesive designed for insulation <br /> attachment,or hot asphalt.A polymat must be used to cover any asphalt bleed out when a smooth PVC membrane is used. <br /> 6.All loose gravel must be removed. <br />