Limestone Door Trim
How is the limestone secured to the structure? I am impressed, that looks like a serious undertaking. Then again, when am I not impressed with this thread!
To begin setting the limestone door trim...
...a support frame was made to aid in supporting the limestone once it was set in place, especially the 2 top pieces. The side trim weighed about 800 lbs (363 kg) each...
...and the top pieces were about 350 lbs each, (159 kg).
A single piece limestone sill was installed under the door frame. That's what the limestone trim would set on after an alignment pin was set in the sill.
Once the side trim was in place, a slot was cut into the side using a grinder. Then stainless steel wall anchors with a 1" long tab was set into the slot and the other end screwed to a wall stud. Then the tab was mortared into the slot.
Each side got 4 wall anchors and those wall anchors were all mortared into the limestone.
The upper pieces had 2 stainless steel alignment pins...
... installed on each end as well as a wall anchor. The alignment pin holes were filled with mortar so once it was dry it will hold the trim in the same alignment plane. Since there was a 3/8" mortar gap between each piece the wall anchors didn't interfere with the seam between the top pieces.
Stone will cover the wall anchors on the right side and brick will cover them on the left side.
The support frame was clamped to the doorway. As the mortar in the joints dries it will become about the same color as the limestone. Here, with it still wet it really stands out.
Wood blocking was installed to ensure the side trim didn't get pushed sideways by the force of the top trim bearing down on it. Once the stone and brick is completely installed on either side of the limestone trim, they'll help hold the side trim in place.
We hope to have all the brick work done except the chimney in the next few days. There are thousands of details that have to be worked through but each day I'm getting closer to finishing.
Stand by for more.........
Thomas