Cork insulation; a complete illustrated textbook on cork insulation ...

308 CORK INSULATION
See that the first layer of corkboard is solidly laid, and
presents a reasonably smooth and level surface. Saw sufficient
corkboards lengthwise down the center so as to make
one row along the one side of the insulated area, laying the
half-width pieces in the first row of the second layer, in a
straight line, starting oflf with a piece 6 inches wide and 27
inches long, then lay a second row of full-size corkboards,
starting off with a full-width and 9-inch long piece, and then
lay a third row of full-size corkboards, starting off with a
FIG. 139.—LAYING SECOND LAYER CORKBOARD ON FLOOR IN ASPHALT
CEMENT—TANK BOTTOM INSULATION IS APPLIED IN SAME MANNER.
half-length board, following the same method of laying as
described for the first layer of <strong>insulation</strong>. In this way, all
joints in the second layer will be broken and made tight, and
all joints in the second layer will be broken with respect to
all joints in the first layer. When <strong>complete</strong>d, flood the top
surface with the molten material to an even thickness of
approximately ^-inch, and leave in readiness for the tank
to be set.
137.—Regranulated <strong>Cork</strong> Fill, Freezing Tank Sides and
Ends, With Retaining Walls.— See that the tank has been
properly set, having its bottom edges the proper distance in
from the edges of the <strong>insulation</strong> underneath. Erect 2-inch x
12-inch studs on suitable centers (from 24 to 36 inches) at
right angles against the sides and ends of the tank*, anchoring
carefully by cutting slots through tank bottom <strong>insulation</strong>,
*If the tank is to be set in a corner, so that masonry walls of the building act as
two retaining walls, such walls must be damp-proofed before the tank is set and the
loose fill <strong>insulation</strong> is placed.