DENSGLASS GOLD Exterior Guard - Metro Building Solutions, Inc.

Transcription

DENSGLASS GOLD
Exterior Guard
®
09250/GEO
BuyLine 2893
Your Complete Resource for Quality Gypsum Products
Quality & Innovation
Table of Contents
Product Overview . . . . . . . . . . . . . . . . . . 3
Product Description
®
DensGlass Gold –
Premium Performance
Glass Mat Sheathing
Ideal Under Any Cladding
No matter whether your cladding choice is brick, stone, stucco or siding, DensGlass
Gold® Exterior Guard sheathing underneath adds an unprecedented layer of
protection to your job!
DensGlass Gold Exterior Guard is a totally unique sheathing. It’s paperless,
glass mat facers and treated, water-resistant core make it exceptionally resistant to
wicking, moisture penetration and delamination caused by surface water exposure.
In fact, DensGlass Gold Exterior Guard is so weather-resistant that six months of
exposure to the elements won’t affect its performance. We guarantee it.
Based on a long history and proven record of outstanding performance, G-P
Gypsum backs DensGlass Gold Exterior Guard with a six-month exposure limited
warranty and a five-year limited warranty against manufacturing defects.
For protection you can count on under the widest variety of exterior finishes,
DensGlass Gold Exterior Guard outshines all competitive products. When performance counts, you can count on DensGlass Gold Exterior Guard.
Patents
Available Sizes/Dimensions
Standards and Code Compliance
Eight Reasons to Choose
DensGlass Gold . . . . . . . . . . . . . . . . . . . . 3
Product Comparison. . . . . . . . . . . . . . . . 4
Applications . . . . . . . . . . . . . . . . . . . . . . . 5
Exterior Brick, Stone Veneer,
Conventional Stucco and Siding
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Exterior Insulation and
Finish Systems (EIFS) . . . . . . . . . . . . . . . 6
Advantages of EIFS
Exterior Ceilings and Soffits. . . . . . . . 6-7
Recommendations for Framing
and Fastening . . . . . . . . . . . . . . . . . . . . . . 7
Shear Resistance . . . . . . . . . . . . . . . . . . . 8
Ceiling and Soffit Framing. . . . . . . . . . . 8
Limitations . . . . . . . . . . . . . . . . . . . . . . . . 8
Fastener Chart . . . . . . . . . . . . . . . . . . . . . 8
Recommendations for
Joint Treatment . . . . . . . . . . . . . . . . . . . . 9
Negative Uniform Lateral Loads . . . . 10
Secondary Weather Barrier
Performance . . . . . . . . . . . . . . . . . . . . . . 10
Fire-Rated Assemblies . . . . . . . . . . 11-12
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 13
Architectural Specifications . . . . . . . . 14
Assembly Key
½" DensArmorTM or
DensArmorTM Plus or
⅝" DensArmor Fireguard or
DensArmor Plus Fireguard
Interior Guard
½" DensGlass Gold®
or ⅝" DensGlass Gold
Fireguard Exterior Guard
Insulation
Brick
2
Technical Service Hotline 1.800.225.6119 or www.gp.com/gypsum
Product Overview
Product Description
DensGlass Gold Exterior Guard is a
patented, unique, paperless sheathing
panel engineered with a water-resistant
treated core, surfaced with glass mat
facings and a gold-colored, bondenhancing primer coating. DensGlass
Gold Exterior Guard was created to
withstand weather and moisture
exposure. It has become the preferred
substrate under brick, stone, stucco,
EIFS and siding because of its exemplary track record. DensGlass Gold
Exterior Guard should be specified for
any project where flexibility and easy
sheathing installation are paramount
without the headaches and expense of
delamination, deterioration, sagging
and warping.
Eight Reasons to Choose
DensGlass Gold Exterior
Guard
Gold Exterior Guard and competing
products. By virtually every critical
measure, DensGlass Gold Exterior Guard
is superior.
1. Mold Resistance
6. Superior Weather Protection:
Independent tests confirm that
DensGlass Gold Exterior Guard, with
its patented, inorganic glass mat design,
scored a 10 (indicating no mold growth
detected) in the category of mold
resistance when tested as shipped in
accordance with ASTM D 3273.
DensGlass Gold Exterior Guard
integrates a water-resistant, treated
core with a glass mat face and back to
provide superb protection from the
elements. Panels will not delaminate
or deteriorate due to weather — even
during construction delays that last as
long as six months after installation.
2. Strength:
DensGlass Gold Exterior Guard is
manufactured under one or more of
the following U.S. patents: 4,647,496;
4,810,569; 4,879,173; 5,135,805;
5,148,645; 5,220,762; 5,319,900;
5,342,680; 5,371,989; 5,644,880;
5,704,179; 5,791,109; 5,718,785;
5,883,024. Other patents pending.
Glass mats penetrate into the panel
to make an integrated unit that offers
superb strength; outstanding resistance
to delamination, deterioration, warping
and job site damage; and an excellent
bonding surface for EIFS. The flexural
strength of DensGlass Gold Exterior
Guard is approximately the same in
both directions. This means DensGlass
Gold Exterior Guard can be installed
either vertically or horizontally without
sacrificing wall strength between studs.
DensGlass Gold Exterior Guard also
protects and helps stabilize structural
framing.
Available Sizes/Dimensions
3. Stability:
available in ½" thickness and
DensGlass Gold Fireguard® Type X
Exterior Guard is available in ⅝"
thickness. DensGlass Gold Exterior
Guard panels are manufactured in
a 4' width and 8', 9' and 10' lengths.
Other lengths available upon request.
extremely resistant to rippling, buckling and sagging, even under humid
conditions — which makes it particularly suitable for soffits. In actual
tests, DensGlass Gold Exterior Guard
exceeded ASTM C 79 standards for
humidified deflection by a factor of
5 times over the standard for paperfaced gypsum sheathing.
Patents
Standards and Code Compliance
DensGlass Gold Exterior Guard conforms to ASTM C 1177. Application
standards where applicable are in
accordance with Gypsum Association
Publication GA-253 for gypsum
sheathing or ASTM C 1280.
• ICC-ES Legacy Report 574
• N.Y. City MEA 244-88-M
• CCMC-12064-R
• Los Angeles RR-25008
• ICC-ES Legacy Report 4305
4. Fire Protection:
noncombustible (as tested per ASTM E
136), so it offers outstanding protection
against fire. Tests of ⅝" DensGlass Gold
Fireguard Exterior Guard (conducted
in accordance with ASTM E 119/CAN
ULC S-101) qualify the product for a
variety of UL listings and other designs
in the GA-600 Fire-Resistance Design
Manual.
5. Superior Physical Properties:
Refer to the chart on the following
page for a comparison of DensGlass
Note: DensGlass Gold does not require
building paper or house wrap. However,
when local building code requires building
papers or house wraps such as 15# felt,
Tyvek® or Amowrap™ over DensGlass Gold
Exterior Guard, fasten through DensGlass
Gold Exterior Guard and into framing
members.
7. Easy to Handle:
DensGlass Gold Exterior Guard is light
weight and easy to handle. It can be
cut and fastened with standard drywall
tools and fasteners. The product is
much easier to work with than wood
substrate, cement board or fiber
cement sheathing.
8. Outstanding Warranty:
warranted by G-P Gypsum for six months
exposure from purchase date against
delamination deterioration from weather
exposure with a five-year limited warranty against manufacturing defects
and a 10-year limited warranty when
used as a substrate for architecturally
specified Exterior Insulation and Finish
Systems (EIFS). Our confidence in
DensGlass Gold Exterior Guard’s superiority over any other gypsum sheathing is so strong we put it in writing.
For a copy of the full warranty, call
1-800-225-6119. Or visit our Web site
at www.gp.com/gypsum.
The data relating to fire and soundtested assemblies is based on the
characteristics, properties and
performance of materials and systems
obtained under controlled test
conditions as set forth under the
appropriate ASTM standard, such as
E 119 (fire), E 90 (sound) or E 72
(structural).
3
Product Comparisons
5
5
/8" DensGlass
/8" Gypsum
Gold® Fireguard®, Sheathing,
Type X
Type X
1
/2" DensGlass
Gold® Exterior
Guard
1
/2" Regular
Gypsum
Sheathing
1
/2" Gypsum
Fiberboard
1
Width, Nominal
Length, Standard
Weight/lbs/MSF
Bending Radius
Surfacing
4'
8', 9' 10' ± 1/4"
2,500
12'
Glass mat
4'
8', 9' 10' ± 1/4"
2,200
n/a
Paper
4'
8', 9' 10' ± 1/4"
1,900
8'
Glass mat
4'
8', 9' 10' ± 1/4"
1,850
n/a
Paper
Racking Strength,
lbs./ft.(dry) (Ultimate –
not design value)
Flexural Strength,4 parallel,
lbs. (4' weak direction)
Humidified Deflection,3,4
inches
Permeance (perms)5
“R” Value6
Combustibility
Core
Facing
Linear Expansion with
Change Moisture in/in % RH
Coefficient of Thermal
Expansion in/in/°F
Resists Growth
of Mold (ASTM D 3273)
>654
6541
>540
5401
4'
8
3,000
30'
Paper fiber
gypsum
416
4'
8
3,000
8'
Glass scrim
cement
n/a
1007
502
807
402
124
n/a
Product Comparison
Handling Characteristic
(Easy to score, cut, snap)
Fasteners
/8"
/8"
/8"
/8"
/2" Cement
Board
1
5
2
10
12
.67
32
.56
23
.56
40
.45
n/a
35
.50
n/a
n/a
.26
Noncombustible
Noncombustible
6.25 x 10-6
Noncombustible
Combustible
7.5 x 10-6
Noncombustible
Noncombustible
6.25 x 10-6
Noncombustible
Combustible
7.5 x 10-6
Combustible
Combustible
200 x 10-6
Noncombustible
Noncombustible
n/a
8.5 x 10-6
10 x 10-6
8.5 x 10-6
10x10-6
n/a
n/a
Yes (score: 10
indicating no
mold detected)
Cuts with
utility knife
Standard
No
Yes (score: 10
indicating no
mold detected)
Cuts with
utility knife
Standard
No
n/a
n/a
Cuts with
utility knife
Standard
Requires
special tools
Special
Requires
special tools
Special
1. Gypsum Association - GA252
2. Minimum requirements for ASTM C 79
3. Maximum requirements for ASTM C 79
Cuts with
utility knife
Standard
4. Tested in accordance with ASTM C 473
7. Minimum requirements for ASTM C 1177
5. Tested in accordance with ASTM E 96 (dry cup method)
6. Tested in accordance with ASTM C 518 (heat flow meter)
Paper-Faced Sheathing
DensGlass Gold® Exterior Guard
Guarantee
Gamble
Paper-Faced Sheathing
4
DensGlass Gold® Exterior Guard
Applications
Exterior Brick, Stone
Veneer, Conventional
Stucco and Siding Systems
Brick or Stone Veneer Cavity Wall
Insulation
Studs
Wall Tie (fasten to stud)
2" (50mm max) Air Space
Brick or Stone Veneer
Flashing and Weeps
Most conventional exterior sidings and
wall coverings — including wood, vinyl,
composition, metal, stone, brick, stucco,
wood shingles, shakes and plywood panels
— may be applied over DensGlass Gold
Exterior Guard. Building felt may not be
necessary when using DensGlass Gold
Exterior Guard. Treated joints provide a
superior air and water infiltration barrier
for cavity wall construction. (See chart
on page 10 for more information about
DensGlass Gold as an alternative to
building paper.) Consult your local building codes for joint treatment alternatives
and building wrap requirements.
Brick or Stone Veneer Cavity Wall
Masonry veneer can be applied over
DensGlass Gold Exterior Guard just as it
would be over any other type of sheathing
(see diagram above). Attach the masonry
ties securely through the panels and into
the framing using an 8d (or larger) nail.
Space the ties as required by masonry
courses. For self- supporting systems, such
as brick veneer application, it is satisfactory
to apply ½" DensGlass Gold Exterior
Guard to studs spaced 24" o.c. The brick
veneer exterior should be attached by
means of brick ties through the DensGlass
Gold Exterior Guard and into the framing.
The Brick Industry Association
Conventional Stucco
Insulation
2 x 4 Framing 16" o.c.
Paper-Backed Metal Lath
Conventional Stucco
Flashing
EIFS INDUSTRY MEMBERS ASSOCIATION
Conventional Stucco
Stucco mesh may be applied directly
over DensGlass Gold Exterior Guard
using paper-backed, self-furring materials,
furring strips with furring nails driven
through the sheathing and into the
studs. Nails should penetrate at least
1½" into the framing.
Shingles, Shakes or Vinyl, Metal,
Fiber Cement or Wood Siding
DensGlass Gold Exterior Guard can
be used in other applications such as
under wood shakes or shingles, plywood panel siding or horizontal siding
applications. Fasten cladding through
DensGlass Gold Exterior Guard into
framing. Building papers may not be
necessary when using DensGlass Gold
Exterior Guard. Treated joints provide a
superior air infiltration barrier for cavity
wall construction. See chart on page 10
for more information.
Fiber Cement Siding, Vinyl, Wood, Shingles, Shakes, Metal
Insulation
2 x 4 Framing 16" o.c.
Plywood Siding
Wood Shingles or Shakes
Vinyl Siding
Fiber Cement Siding
Metal Siding
5
Applications
Exterior Insulation and Finish Systems (EIFS)
Exterior Insulation and
Finish Systems (EIFS)
Polystyrene Insulation
Adhesive
Reinforcing Mesh Embedded
in Base Coat
Finish Coat
EIFS INDUSTRY MEMBERS ASSOCIATION
Exterior Ceilings and Soffits without Insulation
Drip Edge
Reinforcing Mesh/Base Coat
Base Coat
Finish Coat
DensGlass Gold Exterior Guard is an
ideal substrate for adhesive or mechanical application of expanded polystyrene (EPS) or extruded polystyrene
insulation in EIFS applications and is
recommended for all climate zones.
designated as the preferred gypsum
substrate for EIFS by EIMA, the EIFS
Industry Members Association, in the
EIFS Durability Specifications Guideline.
Advantages of DensGlass Gold®
Exterior Guard in EIFS
DensGlass Gold Exterior Guard panels
are treated with an exclusive “gold”
primer coating. This coating, proprietary
to G-P Gypsum and developed especially
for DensGlass Gold Exterior Guard, has
several important advantages for EIFS
applications:
• Eliminates the need for sealer/primer
with adhesively applied EIFS
• Strengthens the bond between panel
and surfacing product
• Makes the panel more resistant to
surface water. The result: labor cost
and callbacks go down while customer
satisfaction on each project goes up.
• 10-year limited warranty when used
in an architecturally specified EIFS
application.
Painted Ceilings/Soffits,
Finished Joints
2" 10 x 10 Glass Mesh Tape
Drip Edge
ToughRock Setting Compound*
Finish Coat
*Sandable setting compounds are not acceptable.
Perfect Product For:
• Parking Garages
• Drive-Thru Passages
• Canopies
• Condo Patio Ceilings
• Strip Malls
6
Exterior Ceilings and
Soffits
DensGlass Gold Exterior Guard is an
ideal product for exterior ceilings and
soffits. It resists sagging, even under
conditions of exceptionally high
humidity. DensGlass Gold Exterior
Guard is recognized by ICBO ES as a
substrate for sag-resistant, decorative
soffit. See architectural specifications
for limitations. Apply the panels
directly to structural framing. Surface
and joints may be finished and painted
or the ceiling/soffit may be surfaced
with an exterior finish system. Control
joints are recommended at a minimum
of every 30 feet (up to a maximum
area of 900 sq. ft.) or as specified by
design authority.
Applications, Recommendations for Framing and Fastening
recognized by ICBO ES as a substrate for
Direct-Applied Exterior Finish Systems
(DEFS). This ICBO ES AC59 allows
DensGlass Gold Exterior Guard to be
used in exterior soffits, along with tough
water-resistant coatings, to provide a
soffit that will deliver a highly durable,
sag-resistant decorative soffit. See
architectural specifications for limitations.
Exterior Ceilings and Soffits without
Insulation
To use DensGlass Gold Exterior Guard
in non-insulated exterior ceilings and
soffits, embed reinforcing mesh over the
entire surface and into the base coat or
embed reinforcing fabric (minimum 4"
wide) to the joints, whichever is specified
by the manufacturer. Apply the finish
coat in a conventional manner.
For an exterior ceiling/soffit with
finished joint application, reinforce all
DensGlass Gold Exterior Guard joints
with a minimum 2" wide 10x10 woven
glass mesh tape and ToughRock® 90
setting-type joint compound or equivalent.* Cover the DensGlass Gold
Exterior Guard surface — including
all joints — evenly with a skim coat of
ToughRock setting compound or
equivalent for a smooth finish over the
entire surface of the board. Prime with
an exterior-grade alkyd primer. Finish
with two coats of exterior-grade paint.
(Note: When using DensGlass Gold Exterior
Guard in a soffit application, the roof must
be complete or some other means provided so
that moisture is not allowed to settle or pond
on top of DensGlass Gold Exterior Guard.)
* ToughRock setting compound may be
used for exterior soffits or ceilings that are
protected from exposure to weather, but
it is not recommended for exterior walls
that are directly exposed to the elements.
Always provide a drip edge. Sandable
setting compounds are not acceptable.
DensGlass Gold® Exterior Guard Soffit Board Comparison
Humidified Deflection1 (Sag)2
Water Absorption2
Surface Water Absorption2
Surface
1
/2" DensGlass Gold
Exterior Guard
1
/2" Gypsum Soffit
Board
5
/8" DensGlass Gold
Exterior Guard
5
/8" Gypsum Soffit
Board
/8"
<10%
.83 grams
Glass mat
/8"
40+%
2.5 grams
Paper
/8"
<10%
.83 grams
Glass mat
/8"
40+%
2.5 grams
Paper
2
7
1
4
Specified values for DensGlass Gold Exterior Guard are found in ASTM C 1177 and ASTM C 931 for gypsum soffit board.
Tested in accordance with ASTM C 473.
1
2
Recommendations for
Framing and Fastening
DensGlass Gold Exterior Guard may be
used with wood or metal framing. To
ensure a flat finished surface, the framing
must be even, with plane variances of
no more than ½". Fasteners should be
driven flush with the panel surface
(not countersunk) and into the framing
system. Locate fasteners at least ⅜" away
from the edges and ends of the sheathing.
DensGlass Gold Exterior Guard panels
are not to be used as a base for nailing or
other fastening. Drive the fasteners through
the sheathing panels and into the framing.
Use nails or screws only. DensGlass Gold
Exterior Guard panels may also be used
for mechanically fastened claddings.
Wall Framing
(horizontal application)
(vertical application)
48"
48"
/2" DensGlass Gold Exterior Guard (16" o.c.)
1
Use metal track when using metal studs
Fastening to Metal or Wood Framing
DensGlass Gold Exterior Guard should
be fastened a maximum of 8" o.c. to
metal or wood wall framing in accordance
with ASTM C 1280 around the perimeter
and where there is framing support. Do not
countersink. See fastener chart for sizes
and types of fasteners recommended.
Install with joints staggered per ASTM
C1280.
48"
48"
/8" DensGlass Gold Exterior Guard (24" o.c.)
5
7
Recommendations for Framing and Fastening
Shear Resistance
To meet the racking shear strength
specified in the product comparison
chart on page 5, use 11-gauge ⁷⁄₁₆"
head galvanized nails or equivalent.
These nails should be a minimum 1½"
long for ½" DensGlass Gold Exterior
Guard panels and 1¾" long for ⅝"
panels. Space the nails a maximum of
4" o.c. around the perimeter and 8"
o.c. along intermediate framing in the
field of the board.
Ceiling and Soffit Framing
Maximum spacing for parallel orientation of ½" DensGlass Gold Exterior
Guard is 16" o.c. For perpendicular
orientation, the maximum spacing is
24" o.c. The maximum spacing for ⅝"
DensGlass Gold Fireguard Exterior
Guard is 24" o.c. for both parallel and
perpendicular applications. Fasteners
should be spaced 8" o.c. on framing
members.
Limitations
• DensGlass Gold Exterior Guard is
exceptionally resistant to weather,
but it is not intended for immersion
in water or sustained exposure to
water and moisture. Cascading roof/
floor water should be directed away
from the sheathing until appropriate
drainage is installed.
• The use of forced air heaters creates
volumes of water vapor which, when
not properly vented, can condense
on building materials. The use of
these heaters and any resulting damage
is not the responsibility of G-P Gypsum.
Consult heater manufacturer for
proper use and ventilation. Avoid any
condition that will create moisture
in the air and condensation on the
exterior walls during periods when
the exterior temperature is lower
than the interior.
• When DensGlass Gold Exterior
Guard panels are used in slanted wall
applications, that portion of the wall
must be temporarily protected from
the elements by the use of a weather
barrier such as 15# felt prior to application of the cladding. Also, exposed
wall ends such as those that may be
found in parapets must be covered to
prevent water from infiltrating the
cavity.
• G-P Gypsum does not warrant and
is not responsible or liable for the
performance of the cladding or exterior systems applied over DensGlass
Gold Exterior Guard. The suitability
and compatibility of any system is
the responsibility of the system
manufacturer or design authority.
• Do not laminate DensGlass Gold
Exterior Guard to masonry surfaces;
use furring strips or framing spaced
at manufacturer’s specifications.
not intended for roof applications.
For roof applications consult our
DensDeck® Roof Guard brochure.
not intended for tile applications.
For tile applications, consult our
DensShield® Tile Guard brochure.
not a structural product and should
not be used in lieu of plywood where
required.
• Do not apply DensGlass Gold Exterior
Guard below grade.
• For all installations, design details
such as fasteners, sealants and control joints per system specifications
must be properly installed. Openings
and penetrations must be properly
flashed and sealed. Failure to do so
will void the warranty.
• Do not use DensGlass Gold Exterior
Guard as a base for nailing or
mechanical fastening. Fasteners
should be flush to the face of the
board, not countersunk.
Fastener Chart
Fastener
Fastener Length
Application
5
1"
11/4"
Bugle head fine thread, rust-resistant,
drill point drywall screw (Type S-12)
DensGlass Gold to heavy-gauge
steel
1"
11/4"
sharp point drywall screw (Type S)
DensGlass Gold to light-gauge
metal framing or furring
11/4"
11/4"
coarse thread sharp point screw (Type W)
DensGlass Gold to
wood framing
11/4"
11/4"
Wafer head, rust-resistant screws,
drill or hi-lo (Type S, S-12 or W)
DensGlass Gold heavy-gauge
(Type S-12) or light-gauge
(Type S) metal, wood (Type W),
respectively
11/2"
13/4"
Hot dip 11-gauge, galvanized
7
/16" head nail or equivalent
DensGlass Gold to
wood framing
/2" Thick
8
Description
1
/8" Thick
Recommendations for Joint Treatment
Recommendations for
Joint Treatment
It is not necessary to finish the joints
for protection of DensGlass Gold
Exterior Guard if it is properly installed
before the exterior cladding is applied.
In some situations, where additional
protection against air and water
infiltration is desirable (i.e., in lieu of
building felt), see the chart below for
long-term treatment methods. Choose
the method best suited to your needs.
(Keep in mind that DensGlass Gold
Exterior Guard is neither a vapor barrier
nor a permanent exterior cladding product.
A finish cladding should be applied
over the sheathing within six months.
Always consult with the surfacing
or cladding manufacturer to be sure
the joint treatment selected is compatible with surfacing or cladding material.
Also contact your local building code
official for requirements regarding
sheathing and system protection prior
to final construction.
How to Protect Against Air Infiltration and Water Penetration
Short-Term Protection
Product Required
Taping provides short-term barrier protection against wind
for the duration of the DensGlass Gold Exterior Guard
six-month limited warranty against normal weather exposure.
Press a good-quality contractor’s tape firmly onto sheathing
joints and around openings with a gloved hand. Several
strokes back and forth should provide a good bond. For
short-term protection against wind and water, use exteriorgrade elastomeric caulking along all joints, edges and
openings. Use backer rod for openings larger than 1/8".
• Contractor
Sheathing Tape
No. 8086 or
equivalent, 2"
minimum width,
3M Corporation,
St. Paul, MN
1-800-364-3577 or
651-733-1140.
Long-Term Protection
Method #1
Product Required
This technique is used
when a barrier against
wind, air infiltration or
water penetration is
necessary as an alternate
to building paper,
either by design or code
requirement. Use the
following joint finishing
application methods.
Apply a 3/8" bead of sealant to all
joints and trowel in firmly until flat.
Apply enough of the same material
to each fastener to cover completely
when troweled flat. Approximate
rate of usage is 58 sq. ft. per 10.3
oz. tube. This may vary depending
upon the number of joints, penetrations and openings. Use backer
rod for openings larger than 1/8".
• Dow Corning 795
Building Sealant or
equivalent,
Dow Corning, Inc.,
Midland, MI
1-800-248-2481
Method #2
Product Required
Apply glass mesh joint tape to all
joints, overlapping at intersections
by the width of the tape. Apply
approximately a 3/8" bead of caulk
along the joint. Embed the caulk
into the entire surface of the tape
with a trowel. Use backer rod for
openings larger than 1/8". Apply
enough caulk to each exposed
fastener to cover completely when
troweled smooth. Approximate rate
of usage is 48 sq. ft. per 10.5 oz.
tube. This may vary depending upon
the number of joints, penetrations
and openings.
• Pecora AC-20
acrylic latex sealant
or equivalent
Method #1
Method #2
• Pecora 895 or
equivalent,
Harleysville, PA
1-800-523-6688
• GE Silicone Silpruf
Sealant or equivalent
• Tremco Dymonic or
equivalent
• Quick-Tape, Inc. 2"
minimum 10 x 10
glass mesh joint
tape or equivalent
9
Negative Uniform Lateral Loads/Air Infiltration and Static Water Penetration Testing
Secondary Weather Barrier Performance
Joint Method
Method #1
Method #2
ASTM E 283-84, CFM Air Infiltration
ASTM E 331-86, Water Penetration
@ 6.24 PSF
Allowable
@ 6.24 PSF1
@ 12 PSF2
Allowable3
6.0
6.0
None
None
None
None
1
0*
.50*
1
/2 oz.
/2 oz.
1
*Exceeds requirements for Massachusetts building codes.
1. 6.24 PSF is equivalent to approx. 49 mph wind.
2. 12 PSF is equivalent to approx. 69 mph wind. This pressure differential is typically used for high-performance glass enclosures for high-rise buildings.
Normally only 6.24 PSF pressure is required for a water barrier. These are constant wind ratings.
3. Test method allows for one leak at no greater than 1/2 oz. of water in 15 minutes.
Negative Uniform Lateral Loads (Wind Loading)
Thickness, Inches
Board Orientation
Stud Spacing, in. o.c.
Maximum Load (psf)
/2"
/2"
5
/8"
5
/8"
5
/8"
Vertical
Horizontal
Vertical
Horizontal
Vertical
16
16
24
24
16
65
70
68
85
92
1
1
Source: TPI Report #89-047; wind load per ASTM E330 (bugle head screws 8" o.c.)
Note: For information on higher negative uniform lateral loads, contact the G-P Gypsum Technical Hotline at 1-800-225-6119.
10
Fire-Rate Assemblies
Fire-Rated Assemblies (Wood-Framed)
1-Hour Fire Rating
Test Reference:
Wall Thickness:
Weight per Sq. Ft.:
UL U337
U 305
WHI 495-0702
43/4"
7.5
Exterior: ⅝" DensGlass Gold Fireguard
Exterior Guard applied parallel or at
right angles to 2 x 4 wood studs 16" o.c.
with 1¾" galvanized roofing nails 7"
o.c. for all framing members. Exterior
surface covered with weather exposed
cladding or finish system.
Interior: ⅝"DensArmor Fireguard
or DensArmor Plus Fireguard or ⅝"
ToughRock Fireguard gypsum board
applied parallel or at right angles to
studs with 1⅞" 6d coated nails 7" o.c.
Stagger joints each side. (Load-bearing)
1-Hour Fire Rating
Test Reference:
Wall Thickness:
Weight per Sq. Ft.:
UL U309
43/4"
7.5
2-Hour Fire Rating
Test Reference:
Wall Thickness:
Weight per Sq. Ft.:
UL U301
6"
12.5
Exterior Guard applied to 2 x 4 wood
studs spaced 24" o.c. with 1⅞" galvanized roofing nails 8" o.c.
Interior: ⅝" DensArmor Fireguard or
DensArmor Plus Fireguard or ⅝"
ToughRock Fireguard gypsum board to
framing with 1⅞" 6d coated nails 7" o.c.
(Load-bearing)
Exterior: Two layers ⅝" DensGlass Gold
Fireguard Exterior Guard applied
applied horizontally or vertically to 2 x 4
wood studs 16" o.c. Base layer attached
with 1⅞" galvanized roofing nails 16" o.c.
Face layer attached with 2⅜" galvanized
roofing nails 8" o.c. Stagger joints between
layers and on base layer of both sides.
Interior: Two layers ⅝" DensArmor
Fireguard or DensArmor Plus Fireguard
or ⅝" ToughRock Fireguard gypsum
board applied horizontally or vertically to
framing. Base layer attached with 1⅞" 6d
cement coated nails 16" o.c. Face layer
attached with 2⅜" 6d cement coated nails
8" o.c. Stagger joints between layers and
on base layer of both sides. (Load-bearing)
2-Hour Fire Rating
Test Reference:
Wall Thickness:
UL U302
10 1/8"
Exterior: One layer ½" DensGlass Gold
Exterior Guard applied at right angles to
studs with 1¾" galvanized roofing nails
6" oc. Face layer is 2" x 4" x 8" clay brick
with 1" air space between brick and
exterior sheathing. 20-gauge galvanized
wire ties attached to each stud with 8d
coated nails as described above, located at
every sixth course of bricks. (Load-bearing)
Fireguard, DensArmor Plus Fireguard or
⅝" ToughRock Fireguard gypsum board
applied parallel or at right angles to 2 x 4
wood studs 16" o.c. Base layer attached
with 1⅞" 6d coated nails 8" o.c. Face
layer attached with 2⅜" coated nails 8" o.c.
11
Fire-Rated Assemblies
Fire-Rated Assemblies (Steel-Framed)
1-Hour Fire Rating
Test Reference:
Wall Thickness:
Weight per Sq. Ft.:
UL U465
CTC 2171-3996
6"
6 psf
1-Hour Fire Rating
Test Reference:
Wall Thickness:
Weight per Sq. Ft.:
UL U425
43/4"
6 psf
2-Hour Fire Rating
Test Reference:
Wall Thickness:
Weight per Sq. Ft.:
UL U425
6"
11 psf
2-Hour Fire Rating
Test Reference:
Wall Thickness:
Weight per Sq. Ft.:
12
UL U411
5"
11.0
Exterior Guard applied vertically or at
right angles to min. 3⅝" corrosion resistant
25-gauge steel studs 24" o.c. with 1" Type S
corrosion resistant bugle head screws 8" o.c.
at board edges and 12" at intermediate studs.
applied vertically or at right angles to
framing with 1" Type S bugle head screws
8" o.c. at board edges and 12" at intermediate studs.
Exterior Guard applied vertically to min.
3½" corrosion resistant 20-gauge steel
studs 24" o.c. with 1" Type S corrosion
resistant bugle head screws 12" o.c.
applied vertically to framing with 1" Type
S bugle head screws 12" o.c. Insulation to
completely fill stud cavity. (Load-bearing:
100% of design load)
studs 24" o.c. Base layer attached with
1" Type S corrosion resistant bugle head
screws 12" o.c. Face layer attached with
1⅝" Type S corrosion resistant bugle head
screws spaced 12" o.c. Joints staggered.
Fireguard or DensArmor Plus Fireguard or
applied vertically to framing. Base layer
attached with 1" Type S bugle head screws
12" o.c. Face layer attached with 1⅝" Type
S bugle head screws spaced 12" o.c. Joints
staggered. Insulation to completely fill stud
cavity. (Load-bearing: 80% of design load)
studs 24" o.c. Base layer attached with 1"
Type S corrosion resistant bugle head
screws 16" o.c. Face layer attached with
1⅝" Type S corrosion resistant bugle head
screws spaced 16" o.c. Joints staggered.
Fireguard or DensArmor Plus Fireguard or
applied vertically to framing. Base layer
attached with 1" Type S bugle head screws
16" o.c. Face layer attached with 1⅝" Type S
bugle head screws spaced 16" o.c. in the field
and along vertical edges and 12" o.c. to the
floor and ceiling runners. Joints staggered.
Warranty, Architectural Specifications
Limited Warranty
Architectural Specifications
inspires exceptional confidence
in contractors with its lengthy
history of proven performance.
G-P Gypsum confidently backs
the exemplary track record of
with an outstanding warranty:
Part 1 – General
• Up to six months of coverage
against in-place exposure
damage
• A five-year limited warranty
against manufacturing defects
• A 10-YEAR SUBSTRATE
LIMITED WARRANTY in
architecturally specified EIFS
For warranty terms, conditions
and limitations or for more
information, visit our Web site
at www.gp.com/gypsum. Or
write to:
DensGlass Gold Product Manager
G-P Gypsum
55 Park Place
Atlanta, GA 30303
1.0 Description
A. Work in this section includes, but is
not limited to: wall, ceiling and soffit sheathing.
B. Related work specified elsewhere:
1. Brick masonry.
2. Stone.
3. Cold-formed metal framing.
4. Rough carpentry.
5. Finish carpentry.
6. Exterior Insulation and Finish
Systems (EIFS).
7. Siding.
8. Joint sealers.
9. Light-gauge metal framing.
10. Painting.
1.1 Submittals
A. Product Data: Submit manufacturer’s
descriptive literature indicating
material composition, thickness,
sizes and fire resistance.
1.2 Quality Assurance
A. Fire-resistance ratings: Where
applicable, provide materials and
construction that are identical to
those of assemblies whose fireresistance ratings are indicated.
1.3 Delivery, Storage and Handling
A. Delivery: Deliver materials to the
job site in manufacturer’s original
packaging, containers and bundles
with manufacturer’s brand name
and identification intact and legible.
B. Storage and handling: Store level
and handle materials to protect
against contact with damp and
wet surfaces, exposure to weather,
breakage and damage to edges.
Provide air circulation under covering and around stacks of materials.
1.4 Limitations
A. Do not use DensGlass Gold Exterior
Guard as a base for nailing or
mechanical fastening. Fasteners
should be flush to the face of the
board, not countersunk.
B. The use of forced air heaters creates
volumes of water vapor which,
when not properly vented, can
condense on building materials.
The use of these heaters and
any resulting damage is not the
responsibility of G-P Gypsum.
Consult heater manufacturer for
proper use and ventilation. Avoid
any condition that will create
moisture in the air and condensation on the exterior walls during
periods when the exterior temperature is lower than the interior.
C. When DensGlass Gold panels are
used in slanted wall applications,
that portion of the wall must be
temporarily protected from the
elements by the use of a weather
barrier such as 15# felt prior to
application of the cladding. Also,
exposed wall ends such as may
be found in parapets must be
covered to prevent water from
infiltrating the cavity.
D. G-P Gypsum does not warrant
and is not responsible or liable
for the performance of the cladding
or exterior systems applied over
DensGlass Gold Exterior Guard.
The suitability and compatibility
of any system is the responsibility
of the system manufacturer or
design authority.
E. Do not laminate DensGlass Gold
Exterior Guard to masonry surfaces;
use furring strips or framing spaced
at manufacturer’s specifications.
F. DensGlass Gold Exterior Guard is
not intended for roof applications.
For roof applications, consult our
DensDeck® Roof Guard brochure.
G. DensGlass Gold Exterior Guard is
not intended for tile applications.
For tile applications, consult our
DensShield® Tile Guard brochure.
H. DensGlass Gold Exterior Guard is
not a structural product and should
not be used in lieu of plywood
where required.
13
I. Do not apply DensGlass Gold
Exterior Guard below grade.
Part 2 – Products
2.2 Building paper
2.1 Sheathing board
J. For all installations, design details
such as fasteners, sealants and
control joints per system specifications must be properly installed
per system specifications. Openings
and penetrations must be properly
flashed and sealed. Failure to do so
will void the warranty.
A. Acceptable Products:
A. If required by local building code,
15#, nonperforated, asphalt saturated
felt complying with ASTM D 226,
Type 1 or equivalent building
wraps.
K. DensGlass Gold Exterior Guard is
exceptionally resistant to weather
but it is not intended for immersion
in water or sustained exposure to
water and moisture. Cascading
roof/floor water should be directed
away from the sheathing until
appropriate drainage is installed.
1.5 Warranty
A. Materials Warranty: Provide
sheathing manufacturer’s standard
warranty covering sheathing
materials for five years commencing
on date of purchase.
B. Weathering Warranty: Provide
sheathing manufacturer’s standard
warranty covering in-place
exposure damage to sheathing for
six months commencing on date of
purchase by contractor.
1. ½" DensGlass Gold Exterior
Guard
2. ⅝" DensGlass Gold Fireguard
Exterior Guard
B. Characteristics:
1. Size:
a. DensGlass Gold Exterior
Guard: ½" (12.7mm) thick by
4' by 8', 9' or 10' (1.9 lb.
per square foot).
b. DensGlass Gold Fireguard
Exterior Guard: ⅝" (15.9mm)
thick x 4' x 8', 9' or 10'
(2.5 lb. per square foot).
2. Composition:
a. Gypsum sheathing manufactured in accordance with
ASTM C 1177 with glass mats
both sides and long edges,
water-resistant treated core.
3. Fire resistance:
a. Noncombustible when tested
in accordance with ASTM E
136.
b. ½" or ⅝" DensGlass Gold
Exterior Guard: Flame spread
10, smoke developed 0, when
tested in accordance with
ASTM E 84.
c. ⅝" DensGlass Gold Fireguard
Exterior Guard is rated Type X
as defined in ASTM C 36 when
tested according to ASTM E
119 and can be used as a
replacement to any other
generic assembly utilizing a
⅝" Type X gypsum board
(see GA-600 for numeric
assemblies). DensGlass Gold
Fireguard Exterior Guard is
UL classified, Type DGG, in
UL designs N501, N502, N505,
U301, U302, U305, U309,
U337, U342, U354, U355,
U365, U411, U425, U467,
U473, U475, U617, V417,
V419, X508, X516.
14
2.3 Accessories
A. Joint tape: 2" wide 10x10 glass mesh
tape.
B. Joint compound: ToughRock
setting-type joint compound.
C. Nails, wood framing: Hot dip,
11-gauge galvanized nails with
⁷⁄₁₆" head, 1½" min. length.
D. Screws, metal framing:
1. Type S-12, bugle head, selftapping, rust-resistant, fine
thread for heavy-steel gauge.
2. Type S, bugle head, rustresistant sharp point, fine
thread for light-gauge metal
framing or furring.
E. Screws, metal or wood framing:
1. Wafer head, rust-resistant,
S-12 drill or Hi-Lo, min.
1" length. Or Type W rustresistant, bugle head, coarse
thread, sharp point for wood.
F. Sealants, caulk and tape:
1. Dow Corning 795 or equivalent;
Pecora 895 or equivalent.
2. Pecora AC-20 acrylic latex
sealant; GE Silicone Silpruf
Sealant; Tremco Dymonic or
equivalent
3. 2" wide 10 x 10 glass mesh
Quick Tape or equivalent
Part 3 – Execution
3.1 Preparation
Examine subframing; verify that surface of framing and furring members
to receive sheathing does not vary
more than ¼" from the placement of
faces of adjacent members.
3.2 Sheathing
A. Provide DensGlass Gold Exterior
Guard where indicated on
drawings. Install sheathing in
accordance with manufacturer’s
instructions and applicable
instructions in GA-253 and
ASTM C 1280.
B. Install DensGlass Gold Exterior
Guard with gold side out.
C. Use maximum lengths possible to
minimize number of joints.
D. Wood framing: Attach DensGlass
Gold Exterior Guard to wood
framing with nails spaced 4" o.c. at
perimeter for racking shear resistance; 8" o.c. at perimeter where
there are framing supports and
where racking shear resistance is
not required; and 8" o.c. along
intermediate framing in field for
both conditions.
E. Metal framing: Attach DensGlass
Gold Exterior Guard to metal
framing with screws spaced 8" o.c.
at perimeter where there are framing supports; and 8" o.c. along
intermediate framing in field.
F. Drive fasteners to bear tight against
and flush with surface of sheathing.
Do not countersink.
G. Locate fasteners minimum ⅜" from
edges and ends of sheathing panels.
H. Building paper: If required, install
building paper or equal with flashing around openings.
I. Finishing:
1. Seal joints and fasteners using
Dow Corning 795 or Pecora
895 or equivalent.
3.3 Ceilings and Soffits
A. Joint treatment and finish
preparation:
1. Painted ceilings and soffits
a. Apply joint tape over joints
and embed in setting-type
joint compound specified.
b. Skim coat surface with
setting-type joint
compound for smooth finish.
c. Prime and paint with exterior
grade, good quality paint.
CAUTION: THIS PRODUCT
CONTAINS CONTINUOUS
FILAMENT FIBERGLASS
Fiber released during normal
handling of this product can cause
skin, eye and respiratory irritation.
Avoid breathing dust and contact
with skin and eyes. Follow these
standard work practices:
• Wear long-sleeved, loose-fitting
clothing, gloves and eye
protection.
• Use a respirator, such as a 3M
Model 9900 or equivalent.
• Wash exposed areas with soap
and warm water after handling.
• Wash work clothes separately
from other clothing; rinse washer
thoroughly. Operations that
generate high airborne fiber
concentrations (over 10 fibers/cc)
require additional respiratory
protection.
2. Finish joints and fasteners
Pecora AC-20 acrylic latex sealant;
GE Silicone Silpruf Sealant;
Tremco Dymonic or equivalent.
15
DensGuard™ Product Family Shares
Dens Technology Benefits
Glass mat Dens Technology gives all DensGuard products superior resistance
to moisture and mold growth.
DensArmor™ Interior Guard – Gypsum core with a glass mat on the back and
a smooth, heavy-duty paper on the face. Superior protection from incidental
moisture in the wall cavity. Resists growth of mold (per ASTM D 3273).
www.gp.com/gypsum
G-P Technical Hotline:
1-800-225-6119 (M-F, 8-6 ET)
Sales Information and
Order Placement
USA
Midwest:
South:
Northeast:
West:
CANADA
Quebec:
1.800.876.4746
1.800.327.2344
1.800.947.4497
1.800.824.7503
1.800.387.6823
1.800.361.0486
DensArmor™ Plus Interior Guard – Interior panel with a moisture-resistant,
gypsum core with glass mat facings on both front and back of board. Highly
resistant to moisture and the growth of mold (per ASTM D 3273).
DensShield® Tile Guard – Premium performance tile substrate. Provides a wealth of
labor saving benefits while offering ultimate moisture protection for professional
tile installations. Heat-cured gray acrylic coating serves as a built-in moisture
barrier that protects both the tile installation and the wall cavity behind it.
DensGlass Gold® Exterior Guard – Unique, paperless sheathing panel engineered with a moisture-resistant treated core surfaced with glass mat facings
and a gold-colored, bond-enhancing primer coating.
DensGlass® Ultra Shaft GuardTM – Glass mats on front and back of moistureresistant core that make it the most mold-resistant shaftliner product on the
market (tested in accordance with ASTM D 3273). Ideal for use in pre-rock situations.
DensDeck® Roof Guard – Glass mat faced water-resistant treated gypsum core
panel. Approved by all leading roofing systems manufacturers. Highest performance rating for fire, wind uplift, strength and moisture resistance.
DensDeck Prime™ Roof Guard – Premium roof board that combines all the
features of standard DensDeck with an enhanced surface treatment. Engineered
with a proprietary, non-asphaltic coating to enhance bonding in commercial
single-ply and build-up roofing systems.
© 2003 G-P Gypsum Corporation.
All rights reserved. TOUGHROCK and
DENSGLASS are registered trademarks
and ULTRA SHAFT GUARD, DENSGUARD
and DENSARMOR are trademarks
of Georgia-Pacific Corporation.
G-P Gypsum and Georgia-Pacific
Canada are wholly owned subsidiaries
of Georgia-Pacific Corporation.
Printed in USA.
GEO 08/03 Lit. Item #102250

DENSGLASS GOLD Exterior Guard - Metro Building Solutions, Inc.

Transcription

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