USACE / NAVFAC / AFCESA / NASA UFGS-07 81 00 (February 2009)
-----------------------------
Preparing Activity: USACE Superseding
UFGS-07 81 00 (April 2006)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 07 81 00
SPRAY-APPLIED FIREPROOFING
02/09
NOTE: This guide specification covers the requirements for spray-applied fire
protection.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
PART 1 GENERAL
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
Reference Article. Also use the Reference Wizard's Check Reference feature
to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
The publications listed below form a part of this specification to the extent referenced. The publications are
referred to within the text by the basic designation only.
[ASSOCIATION OF THE WALL AND CEILING INDUSTRIES - INTERNATIONAL (AWCI)AWCI TM 12-A(1997) Testing and Inspection of Field Applied Sprayed Fire-Resistive Materials; An Annotated Guide][ASTM INTERNATIONAL (ASTM)ASTM E 1042(2002; R 2008) Acoustically Absorptive Materials Applied by Trowel or SprayASTM E 119(2008a) Standard Test Methods for Fire Tests of Building Construction and MaterialsASTM E 605(1993; R 2006) Thickness and Density of Sprayed Fire-Resistive Material (SFRM) Applied to Structural MembersASTM E 736(2000; R 2006) Cohesion/Adhesion of Sprayed Fire-Resistive Materials Applied to Structural MembersASTM E 759(1992; R 2005) Effect of Deflection on Sprayed Fire-Resistive Material Applied to Structural MembersASTM E 760(1992; R 2005) Effect of Impact on Bonding of Sprayed Fire-Resistive Material Applied to Structural MembersASTM E 761(1992; R 2005) Compressive Strength of Sprayed Fire-Resistive Material Applied to Structural MembersASTM E 84(2008a) Standard Test Method for Surface Burning Characteristics of Building MaterialsASTM E 859(1993; R 2006) Air Erosion of Sprayed Fire-Resistive Materials (SFRMS) Applied to Structural MembersASTM E 937(1993; R 2005) Corrosion of Steel by Sprayed Fire-Resistive Material (SFRM) Applied to Structural MembersASTM G 21(1996; R 2002) Determining Resistance of Synthetic Polymeric Materials to Fungi][UNDERWRITERS LABORATORIES (UL)UL 263(2003; Rev thru Oct 2007) Fire Tests of Building Construction and MaterialsUL Fire Resistance(2008) Fire Resistance Directory]1.2 SYSTEM DESCRIPTION
NOTE: Specify, or indicate on the drawings, each structural member, and floor
and deck underside to be fireproofed. Indicate structural members that do not
require fireproofing, such as exterior structural peripheral members.
The following information will be shown on the project drawings or detailed
in this section:
1. The extent and location of sprayed fire protection.
2. Fire resistance rating of each structural component to receive fireproofing,
and whether the component is restrained or unrestrained as specified in UL Fire
Resistance.
3. Fire protection other than that specified in this section for equivalent
masonry, concrete or plaster fire protection on outside surfaces of exterior
structural peripheral members.
4. Bearing members which do not require fire protection including structural
steel and underside of steel decks in elevator machine rooms, and steel bearing
members in elevator hoistways.
1.2.1 General Requirements
Protect all structural steel, undersides of steel floors (if required) and steel roof decks (if required) with
spray-applied fireproofing to a fire resistance hour-rating as indicated below, unless otherwise indicated.
1.2.2 Fire Resistance Rating
NOTE: Fire ratings will be determined in accordance with the nationally-recognized
building code used for the project, i.e. Uniform Building Code, published by
the International Conference of Building Officials, or the International Building
Code published by the International Code Council.
Thickness and rating must be specified for each fireproofing application not
covered by a specified UL Design Number. However, the UL Design number is for
a specific product; therefore, is indirectly being proprietary and would require
justification for sole source.
The floor decks and roof deck designs should utilize systems that do not require
the underside of the decking to receive spray-applied fireproofing. This may
require specifying a thicker deck or a different system. Due to flexing of
the deck, spray-applied fireproofing will eventually become loose and be of
no value.
Fire resistance ratings shall be in accordance with the fire rated assemblies listed in UL Fire Resistance.
Proposed materials not listed in UL Fire Resistance shall have fire resistance ratings at least equal to the
UL Fire Resistance ratings as determined by an approved independent testing laboratory, based on tests specified
in UL 263 or ASTM E 119. Apply fireproofing to structural steel members, with the following hourly fire resitance
rating and in accordance with the following UL design or approved equivalent. Use unrestrained fire resistance
ratings, unless the architect/engineer has specified that the degree of thermal restraint of the construction
meets or exceeds the degree of thermal restraint of the tested assembly. Performance tests shall be in accordance
with ASTM E 119.
Fire Rating Schedule
Hourly UL Design
Element Rating Reference
Columns supporting
one floor [_____] [_____]
Columns supporting
more than one floor [_____] [_____]
Columns supporting
roof [_____] [_____]
Floor decks [_____] [_____]
Floor supports [_____] [_____]
Roof decks [_____] [_____]
Roof supports [_____] [_____]
1.3 SUBMITTALS
NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL
PROCEDURES and edit the following list to reflect only the submittals required
for the project. Submittals should be kept to the minimum required for adequate
quality control.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy, Air Force,
and NASA projects.
Choose the first bracketed item for Navy, Air Force and NASA projects, or choose
the second bracketed item for Army projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are for [Contractor Quality Control approval.][information only.] When used, a designation following the "G"
designation identifies the office that will review the submittal for the Government. For this specification,
[NVFAC] signifies the office that will review the submittal for the Government to be [[_____] Division,] [EFA
[_____] Naval Facilities Engineering Command Fire Protection Engineer]. Submit the following in accordance with
Section 01 33 00 SUBMITTAL PROCEDURES:
SD-03 Product Data
Fireproofing Material[; G][; G, [NVFAC]]
Data identifying performance characteristics of fireproofing material. Data shall include
recommended application requirements and indicate thickness of fireproofing that should be applied
to achieve each required fire rating.
SD-04 Samples
Spray-Applied Fireproofing[; G][; G, [NVFAC]]
One sample panel, 450 mm 18 inches square, for each specified type of fireproofing. Also,
a designated sample area of not less than 9 square m 100 square feet shall be prepared. Sample
area shall be representative of typical installation of fireproofing including metal decks,
beams, columns and attachments. Equipment, materials and procedures used in the sample area
shall be the same as, or representative of, that to be used in the work. The sample area shall
be approved prior to proceeding with fireproofing work in any other area. The approved sample
area shall be used as a reference standard for applied fireproofing material. Sample area shall
remain in place and open to observation until all spray-applied fireproofing is completed and
accepted, at which time it may become part of the work.
SD-06 Test Reports
Fire Resistance Rating[; G][; G, [NVFAC]]
Reports and test records, attesting that the fireproofing material conforms to the specified
requirements. Each test report shall conform to the report requirements specified by the test
method.
Field Tests[; G][; G, [_____]]
Test reports documenting results of tests on the applied material in the project. Report
shall include defects identified, repair procedures, and results of the retests when required.
SD-07 Certificates
Installer Qualifications[; G][; G, [_____]]
Manufacturer's certification that each listed installer is qualified and trained to install
the specified fireproofing. Evidence that each fireproofing installer has had a minimum of
3 years experience in installing the specified type of fireproofing.
Surface Preparation Report[; G][; G, [NVFAC]]
Manufacturer's certification that surfaces to be protected have been inspected and are acceptable
to receive spray-applied fireproofing. The statement shall list the structural members and
the areas that have been inspected and certified.
Manufacturer's Inspection Report[; G][; G, [NVFAC]]
Manufacturer's certification that the spray-applied fireproofing in the entire project complies
with the manufacturer's criteria and recommendations.
1.4 QUALITY ASSURANCE
1.4.1 Installer Qualifications
Engage an experienced installer that is certified, licensed, or otherwise qualified by the spray-on fireproofing
manufacturer as having the necessary experience, staff, and training to install the manufacturer's products in
accordance with specified requirements. Each installer of fireproofing material shall be trained, have a minimum
of 3 years experience and a minimum of three installations using fireproofing of the type specified. A manufacturer's
willingness to sell its products to the Contractor or installer does not infer qualification of the buyer.
1.4.2 Pre-Installation Meeting
Hold a meeting with the installer, field testing agency, the manufacturer, subContractors (whose employees come
into contact with the fireproofing), and the Contracting Officer prior to the installation of any fireproofing
material to review the substrates for acceptability, method of application, applied thickness, patching, repair,
inspection and testing procedures.
1.5 DELIVERY, STORAGE, AND HANDLING
Packaged material shall be delivered in the original unopened containers, marked to show the brand name, the
manufacturer, and the UL markings. Fireproofing material shall be kept dry until ready to be used, and shall
be stored off the ground, under cover and away from damp surfaces. Damaged or opened containers will be rejected.
Material with shelf-life shall be applied prior to expiration of the shelf-life.
1.6 PROJECT/SITE CONDITIONS
1.6.1 Temperature
Maintain substrate and ambient air temperatures above 4 degrees C 40 degrees F during application and for 24
hours before and after application. Relative humidity shall be maintained within the limits recommended by the
fireproofing manufacturer.
1.6.2 Ventilation
Provide adequate ventilation to properly dry the fireproofing after application. In enclosed areas, provide
a minimum of 4 air exchanges per hour by forced air circulation.
PART 2 PRODUCTS
2.1 SPRAY-APPLIED FIREPROOFING
Provide spray-applied fireproofing material, including sealer, conforming to ASTM E 1042, Class (a), Category
A, either Type I or Type II, except that the dust removed shall not exceed 0.027 gram per square meter 0.0025
gram per square foot of fireproofing material applied as specified in the project. Only Type I fireproofing
is allowed in waterfront areas where the fireproofing may be directly exposed to a natural body of water. Material
shall be asbestos free, and shall resist fungus for a period of 28 days when tested in accordance with ASTM G 21
. Material shall have a flame spread of 25 or less and a smoke developed rating of 50 or less when tested in
accordance with ASTM E 84.
2.1.1 Dry Density and Cohesion/Adhesion
NOTE: For Navy projects use the table in NAVFAC's guide specification, since
the numbers in the table were provided by the manufacturer's when the spec was
developed. Otherwise, include the same numbers into these paragraphs. The
wording in the definitions contained in NAVFAC's guide specification should
be included in these paragraphs, to avoid misinterpretations.
Fireproofing shall have a minimum ASTM E 605 dry density and ASTM E 736 cohesion/adhesion properties as follows:
2.1.1.1 Concealed Structural Components
Fireproofing for structural components concealed above the ceiling, or within a wall, chase, or furred space,
shall have a [minimum] [average] applied dry density of 240 kg per cubic meter 15 pounds per cubic foot and a
cohesion/adhesion strength of 9.57 kPa 200 psf.
2.1.1.2 Exposed Structural Components
Fireproofing for exposed structural components, except where otherwise specified or indicated, shall have a minimum
applied dry density of 350 kg per cubic meter 22 pounds per cubic foot and a cohesion/adhesion strength of 20.83
kPa 434 psf.
2.1.1.3 Mechanical Rooms and Storage Areas
Fireproofing for structural components located in mechanical rooms and storage areas shall have a minimum applied
dry density of 640 kg per cubic meter 40 pcf and a cohesion/adhesion strength of [350] [_____] kPa [7,000] [_____]
psf.
2.1.2 Deflection
Spray-applied fireproofing shall not crack, spall, or delaminate when backing to which it is applied is subject
to downward deflection 1/120 of 3 m 10 foot clear span, when tested in accordance with ASTM E 759.
2.1.3 Bond-Impact
Spray-applied fireproofing material shall not crack, spall or delaminate when tested in accordance with ASTM E 760
.
2.1.4 Compressive Strength
NOTE: For Navy projects use the table in NAVFAC's guide specification, since
the numbers in the table were provided by the manufacturer's when the spec was
developed. Otherwise, include the same numbers into these paragraphs. The
wording in the definitions contained in NAVFAC's guide specification should
be included in these paragraphs, to avoid misinterpretations.
The minimum compressive strength shall be 48 kPa 1000 psf when tested in accordance with ASTM E 761.
2.1.5 Corrosion
Spray-applied fireproofing material shall not contribute to corrosion of test panels when tested as specified
in ASTM E 937.
2.1.6 Air Erosion
Dust removal shall not exceed 0.25 gram per square meter 0.025 gram per square foot when tested in accordance
with ASTM E 859.
2.2 SEALER
NOTE: Specify color contrasting with the fireproofing to facilitate inspection.
Sealer shall be the type approved by the manufacturer of the fireproofing material, shall be fungus resistant,
shall have a flame spread of 25 or less and a smoke developed rating of 50 or less when tested in accordance
with ASTM E 84, and shall be [white] [_____] [or] [green] color.
2.3 WATER
Water used for material mixing and surface preparation shall be potable.
PART 3 EXECUTION
3.1 SURFACE PREPARATION
NOTE: Surfaces to receive sprayed fire protection may be primed only as permitted
by UL Fire Resistance. Surfaces to be galvanized and/or left unpainted must
be coordinated with other sections. Metal deck to receive fireproofing will
be galvanized and not primed or painted; coordinate with Section 05 30 00 STEEL
DECKS.
Most applications of spray-applied fireproofing are for unprimed and unpainted
surfaces. Structural members to receive fireproofing will not be painted because
the paint may weaken the cohesion or adhesion of the fireproofing.
Ducts, piping, and conduit will not be installed until fire protection materials
have been applied to all ceiling areas to be treated (avoiding underside of
the floor and roof decks) and application has been approved; coordinate with
mechanical and electrical requirements.
If it is determined that surfaces to receive fire proofing should not be painted,
omission of painting should be coordinated with Section 09 90 00 PAINTS AND
COATINGS.
Surfaces to be fireproofed shall be thoroughly cleaned of dirt, grease, oil, paint, primers, loose rust, rolling
lubricant, mill scale or other contaminants that will interfere with the proper bonding of the sprayed fireproofing
to the substrate. Painted/primed steel substrates shall be tested in accordance with ASTM E 736, with specified
sprayed fireproofing material, to provide the required fire-resistance rating; painted or primed steel surfaces
may require a fireproofing bond test to determine if the paint formulation will impair proper adhesion. Certify
the acceptability of surfaces to receive sprayed-applied fireproofing and submit a Surface Preparation Report
accordingly. Overhead areas to be fireproofed shall be cleared of all obstructions interfering with the uniform
application of the spray-applied fireproofing. Hardware such as support sleeves, inserts, clips, hanger attachment
devices and the like shall be installed prior to the application of the fireproofing. Condition of the surfaces
shall be acceptable to the manufacturer prior to application of spray-applied fireproofing. Applications listed
for use on primed surfaces shall be in accordance with the manufacturer's recommendations and standards, and
detailed in submittal item SD-03 Product Data.
3.2 PROTECTION
Surfaces not to receive spray-applied fireproofing shall be covered to prevent contamination by splatter, rebound
and overspray. Exterior openings in areas to receive spray-applied fireproofing shall be covered prior to and
during application of fireproofing with tarpaulins or other approved material. Surfaces not to receive fireproofing
shall be cleaned of fireproofing and sealer.
3.3 MIXING
Fireproofing material shall be mixed in accordance with the manufacturer's recommendations.
3.4 APPLICATION
NOTE: For renovation projects, spray-applied fireproofing must be compatible
with encapsulant of remaining residual asbestos.
3.4.1 Sequence
Prior to application of fireproofing on each floor, the manufacturer shall inspect and approve application equipment,
water supply and pressure, and the application procedures. If fireproofing is required to be applied to underside
of steel roof deck and steel floor assemblies, it shall be done only after respective roof or floor construction
is complete. No roof or floor traffic shall be allowed during application and during a 7-day minimum curing
period. Fireproofing material shall be applied prior to the installation of ductwork, piping and conduits which
would interfere with uniform application of the fireproofing.
3.4.2 Application Technique
Water pressure and volume shall be maintained to manufacturer's recommendations throughout the fireproofing application.
Fireproofing material shall be applied to the thickness and density established for the specified fire resistance
rating, in accordance with the procedure recommended by the manufacturer, and to a uniform density and texture.
Fireproofing material shall not be tamped to achieve the desired density.
3.4.3 Sealer Application
If sealer is required by the product used, it shall be applied after field testing has been conducted and after
corrective measures and repairs, if required, have been completed.
3.4.4 Applied Thickness
The minimum average thickness shall be no less than 9.525 mm 0.375 inches. Thicknesses shall not be less than
required to achieve designated fire resistance ratings. If the specified thickness is greater than or equal
to 25 mm 1 inch, any individual measurement shall not be less than the specified thickness minus 6 mm 0.25 inches
. If the specified thickness is less than 25 mm 1 inch, any individual measurement shall not be less than the
specified thickness minus 25 percent.
3.5 MANUFACTURER'S SERVICES
NOTE: The requirement to have a manufacturer's representative onsite, for small
jobs and in remote locations, must be based on an economical analysis.and the
importance of the project.
For Navy projects, consult with EFD/A Fire Protection Engineer to determine
if the manufacturer's representative is required for the project.
3.5.1 General
The manufacturer, or its representative, shall be onsite prior to, periodically during, and at completion of
the application, to provide the specified inspections and certifications; and to ensure that preparations are
adequate and that the material is applied according to manufacturer's recommendations and the contract requirements.
3.5.2 Manufacturer's Inspection
NOTE: Delete requirement for manufacturer's inspection for small jobs and remote
sites where such support is not economical.
The manufacturer shall inspect the fireproofing work after the work is completed on each floor or area, including
testing, repair and clean-up, and shall certify that the work complies with the manufacturer's criteria and recommendations.
Before the sprayed material is covered, and after all of the fireproofing work is completed, including repair,
testing, and clean-up; and after mechanical, electrical and other work in contact with fireproofing material
has been completed, the manufacturer shall re-inspect the work and certify that the entire project complies with
the manufacturer's criteria and recommendations. Obtain and submit the Manufacturer's Inspection Report and
certifications of approval.
3.6 FIELD TESTS
The applied fireproofing shall be tested by an approved independent testing laboratory to be selected by the
A/E and paid for by the Contractor. Perform the tests in approved locations: for density in accordance with
ASTM E 736, cohesion/adhesion in accordance with ASTM E 736, and for thickness in accordance with ASTM E 605.
Determine densities in accordance with ASTM E 605 or Appendix A, "Alternate Method for Density Determdnation"
of AWCI TM 12-A. Take density determinations at the flat portion of deck, beam bottom flange, beam web, column,
and an equivalent area from the top of the lower beam flange. Areas showing a density less than specified will
be rejected. A test sample shall be located every 920 square meters 10,000 square feet of floor area or two
for each floor, whichever produces the greatest number of test areas. Any area showing less than minimum requirements
shall be corrected. Proposed corrective measures, in writing, shall be approved before starting the corrective
action. Corrected work shall be retested.
3.6.1 Structural Components
Each structural component type shall be tested at floor and roof decks, beams, columns, joists, and trusses.
Minimum average thickness shall be as [indicated] [or] [required by UL Fire Resistance]. Density and cohesion/adhesion
shall be as specified.
3.6.2 Repair
Additional fireproofing material may be added to provide proper thickness. Rejected areas of fireproofing shall
be corrected to meet specified requirements by adding fireproofing material to provide the proper thickness,
or by removing defects and respraying with new fireproofing material. Repairs shall use same type of fireproofing
material as originally applied or patching materials recommended by the manufacturer. Repaired areas shall be
retested and reinspected. Fireproofing material shall be applied to voids or damaged areas by hand-trowel, or
by respraying.
3.6.3 Visual Inspections
Inspections shall be made by the certified independent laboratory prior to closure of concealed areas. These
inspections may be phased, but shall not occur less than 5 working days prior to the enclosure of the fireproofing.
Sprayed areas shall receive a final inspection. Fireproofed surfaces shall be inspected after mechanical, electrical,
and other work in contact with fireproofing material has been completed and before sprayed material is covered.
Any locations missing fireproofing shall be patched in accordance with the manufacturer's requirements.
3.6.4 Patching
Patch and repair damaged fireproofing. The patching material shall be the same as that specified for that area.
3.7 CLEANUP
Surfaces not indicated to receive fireproofing shall be thoroughly cleaned of sprayed material within a 24 hour
period after application.