Grayne siding from Boral now offers accessories that coordinate with its composite siding shingles. The line includes mounting blocks and utility vents; 3/4-inch J-channel for inside corners and gables; and cellular PVC trim—4-inch and 6-inch outside corners and flat casing—with an integrated nailing flange that forms a J-channel to facilitate siding installation. The accessories range from $50 to $100 and the J-channel is $15. grayne.com
