Document oe405KRr20o3XpDmB4YBwj5Ew
CUTTING AND PUNCHING USG Asbestos Cement -Siding
tne sake^of ^finished job/and because it is quicker, it is
Bv"
S .- recommendediithat : /It is - in dact'almost
an asbestos shingle cutter be used. indispensable'. Such shingle; cutters
'' V' 17' with a 27 Id "/or 32". blade are regularly provided with a
punch for punching holes for 'concealed nails/ and a
//notching device for cutting irregular shapes to fit'around
/ . window sills./These cutters can be easily obtained from
our dealers. ' ' . ./
' '.
: Where shingle cutters are not available, shingles may ]
' be scored with a sharp instrument, and snapped over a
straightedge.
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OVER (GYPSUM; BOARD SHEATHING When applying USG Asbestos/Cement Shingles over this type of sheathing, -the Speed Clinch Fastener System is recommended. See detail No. 32. '
NO TOP NAILING REQUIRED
chalk Erne, .thus insuring a straight level base line, and permitting the shingle to overhang the cant strip Vi", forming a proper drip edge. Apply a joint strip folded vertically at the corner. See detail No. 51. Start the ap-
plicaticnaof the first course with a full size shingle, ex
tending the butt Vi" below the cant strip to form a drip edge. Secure the shingle by nailing the first vand middle galvarimed, nails at the head of the shingle, being careful
that the top of the shingle runs true to the chalk line. Drive the nails snugly, but do not drive them home. Be fore nailing at the opposite end insert a joint strip beneath
the shingle so that the strip centers under the vertical joint of this shingle and the' next shingle to be laid. Se
curely nail the third galvanized nail in the shingle and
continue application of subsequent shingles in a similar manner/placing an asphalt joint strip under each joint.
Butts of shingles are to be secured with special face'
nails, driven through the holes provided. These special face nails have small heads that'will not show up prom-:
inentlyvand are made to the exact size of the holes.' 7
It is'important in nailing at both top. and bottom that
you nail/across the shingle--never nail both, ends and
then the center.
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GVPSUM SHEATHING
BEFORE
SPEED CLINCH FASTENER nIF ASBESTOS CEMENT SIDING
A FT E F(
OVER FIBER BOARD SHEATHING The shingles can be
attached by means of the Nailex clip system. See de
tail No. 34.
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.'DETAIL No. 34
FIRST COURSE . Apply Vi" x 1" cant strip or wood furring . /'/ strip along the bottom of the wall. Snap a level chalk line
113,4" above the bottom of this cant strip. Shingles in the -//;/ first course should be laid with the top edge along this
USG Saturated.Felt
--^-. Flashing.' :
. Old u'bod siding
jjtJoint Strips
Note that nails thru butt;'/ of shingle resti upon top
'.'.edge of shingl* below, giving /proper alignment df-courses
jut\F' Ixpr : ' ............
Break joints by using
Cot shingles at ends Pmnch nail holes as
required.
3ZTE
USG ASBESTOS SIDIN^SHINGLeS . Wavy Butt or Clapboard
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APPLICATION OF SUCCEEDING /OURSES
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DETAIL No. 5i -
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SECOND AND SUCCEEDING COURSES Apply a folded 'joint
strip at the corner as in the first course, providing a one
inch lap of the strip over the first course shingle. See de
tail No. 52. Cut a full size shingle to provide for staggered
joint application. Always use two holes'in the head and
two holes in the butt of any piece of shingle, punching
new holes if necessary. Note: Shingles can be aligned for
proper exposure by inserting two nails in the holes at the
butt of the shingle allowing the inserted nails to rest upon.
the top afi. the underlying shingled Upper nails are then ,
driven as before being careful to insert a joint strip, at /
each vertical joint as before described with the end com a
ing one inch down over the lower course. Continue appli cation with full size shingles, being careful to make tight
a
o
joints.. ;
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Complete succeeding courses as described, breaking
vertical joints in alternating courses.
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- Where/galvanized nails are, exposed as under win-, dows, aprply additional wood moulding to cover same/
UNITED STATES
: ACK-T Copyright 1938'-- U. 9, Qyptum Co..