Hotrod & Restoration

January/February '13

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n n n n CLEAN ROOM The Ultimate Assembly Room CEILING While the cabinets may be bolted together, luckily our floor was level enough that we simply butted them together. The drawers on these Lista cabinets are incredibly stable, even fully loaded and fully extended. In my restoration/custom/fabrication tech shop, we have a ceiling that measures 13' - 8" from the floor. I decided to go with a suspended (drop) ceiling in the engine room, using grids, 2 x 4 recessed lighting and 2 x 4 ceiling tiles. While an 8' or 9' ceiling height would be adequate for an engine assembly room, I opted to place our drop ceiling at a height of about 12.4', simply to accommodate my adjustable stand-mounted studio strobe flash units (after all, I pop lots of photos for magazine articles and books, and I didn't want to be constrained by ceiling clearance. Plus, this leaves us with 15" above the grid to accommodate our ventilation units). While "conventional" ceiling tiles would look fine, I was concerned about dust and particulates that might fall from the tiles ("tile crumbs"). To address this, I checked with Armstrong. They offer a Mylar "clean room" ceiling tile that won't crumble and drop crap into a fresh engine. The Mylar tiles are actually designed for surgical operating rooms, so that gives you some idea of their "dust" potential. Unfortunately, this ultraclean approach comes at a hefty price tag of about $3.50 per square foot. An alternative is the "Grid Stone" tile that consists of 1/2" drywall with a vinyl facing. This tags out at about $1.70 per square foot. Another option, to reduce tile weight, is to go with Innotech's vinyl faced tiles, P/N WI1170 CRFI, which are about half the weight of 1/2" drywall tiles. These go for about $139 for a pack of eight tiles. Innotech offers a wide array of pro clean room goodies. They can be reached at 888-270-0458. AIR FILTRATION We're still adding specialty tools as we go. Our Gearhead connecting rod vise and Summit/Trick Flow piston ring filer are mounted to the butcher-block worktop. 46 If you have the budget, adding a HEPA (High-Efficiency Particulate Air) air filtration system is a great idea. A HEPA filter is designed to trap at least 99.7% of airborne particles down to 0.3 microns in size. A HEPA filter approach for a ceiling tile application includes a series of overhead HEPA filters with motorized fans (these mount in the ceiling tile areas in the ceiling grid, just as the tiles mount). The fans are located overhead of the filters. These draw air that is filtered Hotrod & Restoration January/February 2013 HRR_Jan/Feb13_Pages1-63.indd 46 1/24/13 2:26 PM

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