Historic Preservation - Technical Procedures
Controlling Termites With Termicide Treatments
Tacoma Union Station Courthouse/Tacoma, Wa, 11-26-90
Controlling Termites With Termicide Treatments
CONTROLLING TERMITES WITH TERMITICIDE TREATMENT
A. This procedure includes guidance on treating wood
construction to control termites by injecting infested
areas with termiticide.
B. Termites, beetles, and carpenter ants cause less visible,
but more serious problems than more visible insects.
C. Termites are wood eating insects which attack primarily
soft sapwood. They are most active in locations with high
moisture and usually enter the wood at or below ground
level. Beetles also eat wood, even in dry areas above
ground. Carpenter ants burrow into wood to make a home,
not to find food; they seldom are a serious problem.
D. See 01100-07-S for general project guidelines to be
reviewed along with this procedure. These guidelines
cover the following sections:
1. Safety Precautions
2. Historic Structures Precautions
4. Quality Assurance
5. Delivery, Storage and Handling
6. Project/Site Conditions
7. Sequencing and Scheduling
8. General Protection (Surface and Surrounding)
These guidelines should be reviewed before performing
this procedure and should be followed, when applicable,
along with recommendations from the Regional Historic
Preservation Officer (RHPO).
A. Product Data: Submit manufacturer's technical data and
application instructions to RHPO for approval before
proceeding with treatment operations.
1.03 QUALITY ASSURANCE
A. In addition to requirements of these specifications,
comply with manufacturer's instructions and
recommendations for work, including preparation of
substrate and application.
B. Engage a professional pest control operator, licensed in
accordance with regulations of governing authorities for
application of treatment solution.
C. Use only termiticides which bear a Federal registration
number of the U.S. Environment Protection Agency.
1.04 PROJECT/SITE CONDITIONS
A. Restrictions: Do not apply treatment solution except as
otherwise required in construction operations. Apply in
an industry standard manner such that contamination by
toxic or hazardous chemicals does not occur in any
adjacent or occupied areas.
A. Furnish written warranty certifying that applied
termiticide treatment will prevent infestation of
termites and, that if termite activity is discovered
during warranty period, Contractor will retreat building
and repair or replace damage caused by termite
1. Provide warranty for a period of 5 years from date
of treatment, signed by Applicator and Contractor.
A. PRG, Inc. (Preservation Resource Group)
P.O. Box 1768
Rockville, MD 20849
A. Emulsible concentrate termiticide for dilution with
water, specially formulated to prevent infestation by
termites such as "Bora-Care" (PRG, Inc.), or approved
1. A high-concentration solution containing the active
ingredient disodium octaborate tetrahydrate
formulated in a specially patented carrier system.
2. Provides a high-degree of repellency and rapid
elimination of active infestation in a single
3. EPA registered for preventive and remedial
treatments; odorless; colorless; long lasting.
4. Penetrates the wood, eliminates active infestations
and provide long-term protection against future
NOTE: Other solutions or methods of application may be
used as recommended by manufacturer or applicator if also
acceptable to the RHPO and approved for intended
application by jurisdictional authorities.
A. Spray equipment for application of termiticide
concentrate as recommended by termiticide manufacturer.
A. Inspect all wood portions of a building for insect damage
at least once each year. Look for signs of insect
activity, such as:
1. Clay tubes on pieces of wood
2. Small holes in the wood
3. Small unexplained piles of sawdust
B. If any of these signs appear between inspections, an
insect control specialist should be called in to make a
A. Remove foreign matter which could decrease effectiveness
of treatment on areas to be treated.
3.03 ERECTION, INSTALLATION AND APPLICATION
NOTE: TERMITICIDE TREATMENT WILL NOT STRENGTHEN DETERIORATED
WOOD. STRUCTURAL MEMBERS THAT ARE NO LONGER SOUND MUST BE
REPAIRED OR REPLACED.
A. For Spot Treatment of Infested Areas:
1. Dilute termiticide concentrate with water according
to manufacturer's instructions.
NOTE: FUEL OIL IS NOT PERMITTED AS A DILUENT.
2. Saturate the infested and surrounding area with
diluted termiticide using a spray. Apply at rate
recommended by manufacturer.
NOTE: BE SURE TO TREAT THE ENTIRE INFESTED MEMBER
TO ENSURE THAT THE ACTIVE INGREDIENT IN THE
CONCENTRATE REMAINS AT A LEVEL HIGH ENOUGH FOR
EFFECTIVE CONTROL. WOOD THAT HAS NOT BEE TREATED
WILL NOT BE PROTECTED.
B. Post signs in areas of application to warn workers that
termiticide treatment has been applied. Remove signs
when areas are covered by other construction.
C. Reapply treatment solution to areas disturbed by
subsequent construction activities following application.
END OF SECTION