Bed The Hearth
Prepare the bedding mixture, which can be sand and cement with an accelerator added to speed up hardening, or special hearth bedding mixture available ready mixed. Lay the bedding mixture on the floor to the guide marks, ensuring sufficient depth to ensure sufficient support of the hearth.
Place the hollow hearth on top of the bedding mixture and locate to the pencil marks. Tap the hearth down gently until it is level and raised off the floor approximately 5 to 10mm.
Use spirit levels to check.
Remove excess mixture from edge of hearth and smooth off.
Allow to set before proceeding further.
As an alternative, the bedding mixture can be laid so that it does not come to the edge of the hearth, but finishes approximately 12 to 20mm inside. When the hearth is bedded on to this, carpet can be tucked under the hearth to give a neat finish. This is subject to the hearth being raised off the floor to a suitable height.
The full weight of the hearth must be supported by the bedding material.
Check Position Is Correct By Using A Tape Measure And Also Still Level, Before The Bedding mixture Hardens.
Build Up The Level In The Builders Opening To Be Flush And Parallel To The Hearth, Which Can be The Same Mixture As Used For Bedding The Hearth Or A Softer Mixture.