The top plate is a galvanised steel plate. It measures 15 inch square (375mm) and is used in conjunction with the Top Clamp and Top Insert Sleeve to support the weight of the liner at the top of the chimney stack.
Place the Top Plate over the chimney recess at the top of the chimney stack. The Flue Liner should protrude throught the Top Plate hole by approximately 100mm. Insert the Top Insert Sleeve into the Flue Liner. Now place the Top Clamp over the Flue Liner and tighten the two nuts and bolts until the Flue Liner is secure againts Top Insert Sleeve. Now apply a suitable acid resistant cement as a seal and weather proof render. While this cement is wet secure the chimney pot to this cement.