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

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250 CORK INSULATION<br />

into which <strong>cork</strong>board l<strong>on</strong>g galvanized wire nails shall be driven<br />

obliquely. Into these forms and over this <str<strong>on</strong>g>insulati<strong>on</strong></str<strong>on</strong>g> the c<strong>on</strong>-<br />

crete c<strong>on</strong>tractor shall pour the c<strong>on</strong>crete. To the under surface<br />

of the <str<strong>on</strong>g>insulati<strong>on</strong></str<strong>on</strong>g>, after the c<strong>on</strong>crete c<strong>on</strong>tractor has removed<br />

the forms, shall then be applied a finish as selected.<br />

105.—Ceilings.—C<strong>on</strong>crete (c<strong>on</strong>tinued).<br />

(12) Double layer, first in forms before c<strong>on</strong>cr'ite is<br />

poured, sec<strong>on</strong>d in Portland cement.<br />

In the c<strong>on</strong>crete ceiling forms, c<strong>on</strong>strued by another c<strong>on</strong>-<br />

tractor . . . inches deeper than would otherwise be necessary,<br />

I, ^WOOD f=ORM_<br />

CORK BOARD -<br />

GM_V. WIRE. NAILS.<br />

'V^<br />

i^^m<br />

^,'A<br />

^ " ^<br />

<<br />

CROSS SECTION<br />

1_ NJOTt: APTtR FORM IS RE-<br />

MOVED A SECOND COURSE. OF<br />

CORKBOARD SMALL BE. APPLIED TO<br />

TME FIRST IN A £"BED OF PORT-<br />

LAMD CEMENT MORTAR. rINISMTO<br />

BE APPLIED TO TME EyPOSED SURFACE<br />

PLAN OF CELILING<br />

FIG. 93.—CEILINGS; CONCRETE. ARTICLE 105 (12).<br />

<strong>on</strong>e layer of . . .-inch pure <strong>cork</strong>board shall be laid down, with<br />

all transverse joints broken and all joints butted tight, and<br />

into which <strong>cork</strong>board l<strong>on</strong>g galvanized wire nails shall be<br />

driven obliquely. Into these forms and over this <str<strong>on</strong>g>insulati<strong>on</strong></str<strong>on</strong>g><br />

the c<strong>on</strong>crete c<strong>on</strong>tractor shall pour the c<strong>on</strong>crete. After the<br />

forms have been removed by the c<strong>on</strong>crete c<strong>on</strong>tractor, a sec<strong>on</strong>d<br />

layer of ...-inch pure <strong>cork</strong>board shall be erected to the<br />

underside of the first course in a ^-inch bedding of Port-<br />

land cement mortar, additi<strong>on</strong>ally secured with galvanized<br />

wire nails, with all joints in the sec<strong>on</strong>d course broken with

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