USACE / NAVFAC / AFCESA / NASA UFGS-31 31 16.19 (April 2006)
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Preparing Activity: NAVFAC Replacing without change
UFGS-02363 (August 2004)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 31 31 16.19
TERMITE CONTROL BARRIER SYSTEM
04/06
NOTE: This guide specification covers the requirements for termite control
barrier system.
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).
NOTE: This specification consists of furnishing and installing a complete stainless
steel mesh system at all penetrations, joints and perimeter foundations as a
physical barrier below the concrete slabs and foundations of a structure to
prevent the entry of Formosan and other ground termites into wood components
of the structure, similar to laying down a chemical barrier of soil termiticide treatments.
The use of this material does not preclude the use of other preventive measures
such as chemical treatment, basaltic termite barrier system and pressure treated
lumber for construction to provide maximum protection to the structure. In
fact, it is recommended that this material be used in conjunction with chemical
treatment at all vulnerable areas such as penetration areas around electrical
conduits and plumbing pipes that penetrate the slab as well as the foundation
perimeter and shoulder portions of the barrier. This termite physical protection
system must comply with all codes. It is also recommended that pressure treated
lumber be used to provide maximum protection to the structure.
PART 1 GENERAL
NOTE: Termite infestation exists throughout the United States and overseas areas
with the exception of Alaska. Mesh termite barriers can be prescribed for installation
at all sites where termites are likely to establish colonies and make concealed
entries to wood construction, when it is deemed appropriate and cost effective.
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.
[ASTM INTERNATIONAL (ASTM)ASTM A 478(1997; R 2008) Standard Specification for Chromium-Nickel Stainless Steel Weaving and Knitting WireASTM A 580/A 580M(2008) Standard Specification for Stainless Steel Wire]1.2 SYSTEM DESCRIPTION
NOTE: A complete termite control barrier system encompasses a fine steel mesh
placed across all termite entry points to the building. Principal entry points
include all cracks, joints, penetrations and other termite entry points within
the concrete slabs and cavities in walls. The steel mesh and fastening system
physically prevents the termites from entering the building. The mesh is too
fine for the termites to squeeze through, too hard to chew through, and highly
corrosion resistant for future break down.
Place the stainless steel termite mesh barrier across all openings, joints, penetrations and other termite entry
points to the building (including all shrinkage cracks in concrete slabs and built penetrations in slabs and
walls that termites may use for access point)and as per manufacturer's recommendations. Clamp, parge adhere,
bond and/or embed the termite mesh to the material surrounding the opening as per the manufacturer's recommendations.
Install with no gaps, penetrations or damage to the mesh system.
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.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for the Government.] The following shall
be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-02 Shop Drawings
Barrier Mesh
Shop drawings of the termite barrier mesh system installation at all perimeter foundations,
joint and penetration conditions.
SD-03 Product Data
Barrier Mesh
Accessories
System Description
Catalog cuts, illustrations, schedules, diagrams, performance charts, instructions and brochures
illustrating size, physical appearance and other characteristics of materials or equipment.
Manufacturer's Guidance[; G][; G, [_____]]
Visual Inspection Guide[; G][; G, [_____]]
SD-04 Samples
Barrier Mesh[; G][; G, [_____]]
Samples of stainless steel mesh to be used in this work, 102 x 102 mm 4 x 4 inches.
SD-07 Certificates
System Installers[; G][; G, [_____]]
Certification that installers meet the requirements specified under paragraph entitled "Qualifications
of System Installers.
Materials
Statements signed by responsible officials of manufacturer of product, system or material
attesting that product, system or material meets specification requirements. Must be dated
after award of project contract and clearly name the project.
SD-08 Manufacturer's Instructions
Manufacturer's Installation Instruction Manual.
Preprinted material describing installation of a product, system or material, including special
notices and Material Safety Data sheets concerning impedances, hazards and safety precautions.
SD-09 Manufacturer's Field Reports
Site Conditions
Documentation of the testing and verification actions taken by manufacturer's representative
to confirm compliance with manufacturer's standards or instructions.
Written verification that site conditions are as required and other site work will not disturb
the installation.
SD-11 Closeout Submittals
Warranty
Written warranty required in paragraph entitled "Warranty" and signed jointly by an officer
of the Contractor and the supplier.
1.4 QUALITY ASSURANCE
1.4.1 QUALIFICATIONS OF SYSTEM INSTALLERS
a. The installer shall be trained and accredited by the system supplier.
b. The installer shall employ only workers trained and accredited at the appropriate level
by the system supplier.
1.4.2 PREINSTALLATION MEETING
Convene a preinstallation meeting at least one week prior to beginning installation, to review conditions of
preparation, storage and handling, installation procedures, sequencing, protection and coordination with other
related work. Attendance by the project superintendent, installer, installer's crew leader, and representatives
of the trades affected by this work is required. Notify the Contracting Officer at least 10 calendar days before
meeting.
1.5 DELIVERY, STORAGE AND HANDLING
Deliver materials to the site in original unbroken packaging and containers, with original labels in place.
Store materials in conformance with system supplier's recommendations.
1.6 WARRANTY
NOTE: Use 5 years for family housing and 3 years for other types of facilities.
Furnish a [3] [5] year written warranty against infestations or reinfestation by subterranean termites of the
buildings or building additions constructed under this contract. Perform annual inspections of the building[s]
or building addition[s]. If live subterranean termite infestation or subterranean termite damage is discovered
during the warranty period, and building conditions have not been altered in the interim, the Contractor shall:
a. Correct defective stainless steel mesh installation and perform other treatment as may be
necessary for elimination of subterranean termite infestation;
b. Repair damage caused by termite infestation; and
c. Reinspect the building approximately 180 calendar days after the repair.
PART 2 PRODUCTS
NOTE: Check with local agencies to determine the local building code requirements
and specifications to ensure conformance where required.
2.1 MATERIALS
2.1.1 Asbestos Prohibition
No asbestos containing materials or equipment are permitted at the job site. The contractor shall ensure that
materials proposed for the project are asbestos free.
2.1.2 Barrier Mesh
Stainless steel mesh shall conform to ASTM A 478 and ASTM A 580/A 580M, Type A1AA marine grade 316 stainless
steel mesh of 0.18 mm 0.007 in. diameter wire with mesh openings of 0.66 x 0.45 mm. 0.026 x 0.018 inches.
2.1.3 Accessories
Parging adhesives, bonding cement, high grade stainless steel clamps, ties, and other accessories as recommended
by system supplier.
PART 3 EXECUTION
NOTE: The stainless steel mesh must be installed in a manner to provide maximum
protection to the dwelling. The material provides a physical barrier to the
termites, thus, preventing entry. A range of techniques and material widths
may be required to meet site conditions. The designer is required to determine
the extent of openings to be covered to provide quantity estimates for the material
installed.
3.1 SURFACE EXAMINATION
3.1.1 Examination
Examine the substrates and conditions under which work of this section will be performed. Do not proceed until
unsatisfactory conditions detrimental to timely and proper completion of the work have been corrected.
3.1.2 Verification
Provide written verification that the site conditions under the proposed slab(s) are proper for the installation
of termite barrier system as per manufacturer's recommendations. Perform work related to final grades, landscape
plantings, foundations, or any other operations that might alter the condition of the site, in accordance with
this specification. Before installation, ensure that:
a. The ground has been cleared of wood scraps such as ground stakes, forms and other termite
food sources.
b. The work area has been filled with finely graded soil consisting of particle sizes no larger
than 25 mm 1 in and compacted to eliminate soil movement. The condition of the site shall meet
the manufacturer's recommendations for installing the mesh barrier.
c. Footings and foundations, and outer forms are in place.
d. Communications, electrical and plumbing penetrating pipes are in place.
3.2 INSTALLATION
3.2.1 Instructions
Strictly follow the manufacturer's instructions published in Manufacturer's Installation Instruction Manual.
3.2.2 Installation Sequence
a. Install mesh as required, fit and clamp mesh around all pipe penetrations, and terminate
at perimeters as appropriate for the building construction as described in installation manual.
b. Install special fittings appropriate to construction as described in installation manual.
c. Following installation of mesh, vapor barrier, install reinforcing steel and concrete specified
under other sections.
d. Where required, integrate mesh into subsequent construction as described in installation
manual.
3.3 PROTECTION
Protect the installed termite mesh system, attachments and accessories before, during and after the work of all
trades as required by the system supplier or directed by the Contracting Officer.
Do not place dissimilar metals in contact with the stainless steel mesh to avoid an electrolytic reaction.
3.4 VISUAL INSPECTION GUIDE
To maintain resistance to termites, complete the system and do not disturb, penetrate or damage during the remaining
contract time period. Provide Manufacturer's Guidance for performing a visual assessment of the installed mesh
barrier to ensure the mesh barrier provides the designed termite physical barrier.
3.5 FIELD QUALITY CONTROL
In the event following trades on the site move or damage the mesh, clamps or parging mix, immediately contact
the mesh installer, for recommendation of necessary repairs.