So I need to build a hearth for my new stove... Ember protection is all that's required. My plan is one giant flagstone under the stove, with a wood border just past the required dimensions of floor protection. Since the flagstone is irregularly-shaped, I'm planning to fill the pockets between the stone and the border with 1/2 gravel that matches the flagstone. The stone and gravel depth will be about 2". The base will be 1/2 Durock Nexgen; thinset to floor and thinset to the stone.
So here's the question... Does gravel meet the need of ember protection, as it's non-combustible? If it doesn't, is the Durock underneath it considered a non-combustible surface? I could bed the gravel into the thinset if needed, but would like to be able to take it out and rinse it off every year or so. Thanks!
So here's the question... Does gravel meet the need of ember protection, as it's non-combustible? If it doesn't, is the Durock underneath it considered a non-combustible surface? I could bed the gravel into the thinset if needed, but would like to be able to take it out and rinse it off every year or so. Thanks!
