So I laid the floor bricks last night and granted I was thirsty and it was getting dark but I swear that in the night my bricks shifted a bit and left bigger gaps between them than when I laid them. Should I mix up a batch of refractory mortar and fill the gaps or will they be fine. There is a solid 4 1/2-5" of percrete underneath. Also if anyone is planning on building and running a thermocouple under the floor I beseech you to put a straw in the structural hearth layer to run the wire through. I tried for an hour to drill through the concrete before giving up and going from the side through the percrete.
No announcement yet.