The steel beams are installed with metal decking on top. A tree inch thick layer of rigid insulation is installed on top of the metal decking. Then the vapor barrier on top.
A mat of re-bar is installed on top of the vapor barrier. Spacers called "high chairs" are placed under the re-bars to space them 1-1/2" above the bottom of the concrete slab.
The heat tubes were then installed atop the re-bar mat. Welded wire mesh was then placed on the very top of the slab to reduce cracking when the concrete shrinks during the curing process.
This is a view of the heat tubes as they exit the new heat storage & collector concrete slab and then enter the existing crawl space.
Paul,
ReplyDeleteThat's really cool to see the pictures of the process as it unfolds. It was hard to imagine the process & I'm really appreciating the understanding the pictures provide. Keep Posting or Blogging!
Impressive, Paul! Very fun to see it taking shape!
ReplyDelete