420 NE 95 St (9)COPIES
DATE
REV. NO.
DESCRIPTION
ACTION
CODE
1
6/19/80
Georgia- Pacific's Plywood Specifications.
E
TRANSMITTAL
LETTER
URBAN ARCHITECTS
204 ARAGON AVENUE, CORAL GABLES, FLORIDA 33134
PROJECT:
(name, address)
TO:
WE TRANSMIT:
( x) herewith ( ) under separate cover via
( ) in accordance with your request
FOR YOUR:
( ) approval ( ) distribution to parties ( ) information
( ) review & comment ( ) record
( x) use ( )
THE FOLLOWING:
COPIES TO:
Mr. Frank Lubian
City of Miami Shores
10050 N.E. 2nd Avenue
Miami Shores, Florida 33138
( ) Drawings
( ) Specifications
( ) Change Order
Mr. G. Pino
File
Pino - Mallo Residence
4xx N.E. 95th Street
Miami Shores, Florida
( ) Shop Drawing Prints
( ) Shop Drawing Reproducibles
( )
further questions, please feel free to call on us.
(with enclosures)
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BY: Nelson Mallo
ARCHITECT'S 7935
PROJECT NO:
TEL. 444.8339
DATE: June 19, 1980
If enclosures are not as noted, please
inform us immediately.
If checked below, please:
( ) Acknowledge receipt of enclosures.
( ) Return enclosures to us.
( ) Samples
( x) Product Literature
ACTION A. Action indicated on item transmitted
CODE B. No action required
C. For signature and return to this office
REMARKS As per your request enclosed are specifications of Plywood
decking which states the spaning capabilities. If you have any
D. For signature and forwarding as noted below under REMARKS
E. See REMARKS below
FRANI.
Senior
AME
Rd. So.
g, Florid
8
EXTERIOR PLYWOOD SOFFITS
With open soffit design, a nice
finishing touch is the use of APA
plywood siding, face down, for the
bottom row of roof sheathing panels.
This is especially effective when the
siding pattern used for soffits ties in
with that used for the exterior wall
siding. Or where a design calls for
closed soffits, an APA Exterior
plywood can usually save time. It
simplifies soffit construction and
Plywood sheathing
LiRBAN
204 AFA^cN A'.
CORAL GABLES, FLWR;,:A
Shim at each rafter
for flush joint at change
of plywood thickness.
16
presents a smooth, attractive surface
easy to paint or stain. In any soffit
design, Exterior type plywood should
be used wherever the underside of
the roof deck or soffit is exposed to
the weather.
Load - span capability (open
soffits). The minimum
recommendations given in Table 4A
were developed assuming
uniformly distributed loads. Except as
noted, allowable loads are at least 40
psf live load, plus 5 psf dead load
(weight of plywood plus finish
roofing); 1 -1/8 -inch panels of Group 2,
3, or 4 on 48 -inch centers support 35
psf live load.
Plywood should be
'continuous overtwo'or more spans,
face grain across supports. Under
Max. Span
(inches)
these conditions, the deflection
under full live load will not exceed
T/240 of span. When usiig spans of 32
or 48 inches in open soffit
construction, be sure to provide
adequate blocking, tongue -and-
groove edges, or other edge support
such as panel dips.
Special conditions, such as
concentrated heavy loads, may
require constructions in excess of
these minimums but maximum spans
should not be exceeded regardless of
design live load.
Some special panels
manufactured by APA member mills
may have greater load -span capacities
than the minimums listed here.
TABLE 4A
Plywood for Open Soffit or for combined decking - ceiling
(Face grain across supports)
Panel Description Spet ies t
tMinimum Recommendations) Group
15132' APA 303 S,dtng „� , 1, 2, 3, 4
* "..APAtcl a 1, 2,3, 4
1, 2 3
1
1,2,3,
1, 2,3 4
1, 2,3. 4
1,2, s
48(a) �.: 3 *; lP! _Teactured.41) .,- 1,.2,3,4
(a) Provide adequate blocking, tongue -and- groove edges or other suitable edge
supports such as panel clips.
(b) 1 Ya" panels, of Group 2, 3 or 4 species will support 35 psf live load plus
5 psf dead load.
(c) Applies to sanded, touch - sanded and unsanded grades.
TABLE 4B
Plywood for Closed Soffit (Face grain across supports)
(a) Applies to sanded, touch - sanded and unsanded grades.