\* \* \* \* \* \* \* \* \* \*

REMOVE THIS OUTLINE GUIDE BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

\* \* \* \* \* \* \* \* \* \*

O U T L I N E G U I D E

[DIVISION 6: WOOD AND PLASTICS]{.underline}

SECTION 06311 ‑ PRESERVATIVE‑TREATED LUMBER

USE: Application of preservative treatment to lumber. Unique job
requirements may require specific coverage in the following
specification sections:

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[[ ]{.underline}\] provide for
information to be inserted, as appropriate to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface,
**and *italics* within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately).

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED. **Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name Of The Project (upper/lower case).**
Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specifications that are written "from scratch" that could
benefit others, or other questions can be sent to NARSC A/E Group,
RS-110 or call (303) 987-6851.

F. DESIGN NOTES:

1\. **DRAWING DATA REQUIRED:**

Show on construction drawings what wood is to be preservative or
fire-retardant treated.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes 10/99

Metric: Not Applicable

Technical Update: 3/2000

SECTION 06311

PRESERVATIVE‑TREATED LUMBER

[PART 1: GENERAL]{.underline}

1.1 SUMMARY

A. Section Includes: Furnishing treated wood products. Refer to
applicable sections and drawings for additional wood requirements.

B. Related Sections:

\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*

List sections where items of work that might logically be furnished and
installed under this section but are specified in another section. This
article is rarely required.

\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*

C. Alternates/Alternatives: Where drawings indicate construction
heart‑grade redwood, the Contractor may substitute treated wood which
conforms to the configuration indicated.

1.2 SUBMITTALS

A. General: Submittals shall be according to \[Section 01009 ‑ General
Information and Requirements.\] \[Section 01365 ‑ Certificates of
Conformance.\]

B. Submit certification from treating plant that fire-retardant
treatment will not bleed through finished surfaces.

C. Manufacturer's written recommendations for application of wood
treatments.

1.3 QUALITY ASSURANCE

A. Preservative Treated Lumber and Plywood: Each piece shall bear a
quality mark from an agency accredited by ALSC. The quality mark shall
include the preservative retention level, the corresponding application
(above ground, ground/freshwater contact, etc.), applicable AWPA
standards, and the symbol of the inspection agency.

B. Fire Retardant Treated Lumber and Plywood: Each piece shall be
legibly marked with a UL label.

C. Fabricator\'s Qualifications: A person required to apply
preservatives must provide evidence of completion of an Environmental
Protection Agency approved training course.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Storage: Stack treated material separately from untreated material.
Identify framing lumber as to grades, and store each grade separately
from other grades. Support above the ground and cover against moisture.
Allow air to circulate between members.

B. Handling: Treated materials shall be handled to preserve the
integrity of the treatment. Scrapes, penetrations or abrasions shall be
treated with a preservative approved in writing by the Contracting
Officer.

1.5 SEQUENCING AND SCHEDULING

A. Requirements: Coordinate the provision of treated members with the
progress of the work and the crew necessary for their installation.
Anchor bolts or other necessary attaching devices shall be correctly
sized and in place. Follow manufacturer's recommendations for hot dipped
galvanized or otherwise treated fasteners.

[PART 2: PRODUCTS]{.underline}

2.1 MATERIALS

A. Lumber: Shall be treated according to AWPA C2 \[fire retardant lumber
shall be treated according to AWPA C20\].

B. Plywood: Shall be treated according to AWPA C 9. \[Fire retardant
plywood shall be treated according to AWPA C27\].

C. Wood for Highway Construction: Shall be treated according to AWPA C
14.

D. Wood for Marine Construction: Shall be treated according to AWPA C
18.

2.2 WOOD PRESERVATIVE TREATMENT PRACTICES

A. General: Minimum net retention, penetration, and treatment method
shall be according to AWPA C 1, and the appropriate AWPA standard listed
above.

B. Pentachlorophenol: Shall conform to AWPA P3 in petroleum conforming
to AWPA P 9.

C. Waterborne Preservatives: Shall conform to AWPA P 5, as follows:

1\. Acid Copper Chromate (ACC)

2\. Ammoniacal Copper Arsenate (ACA)

3\. Ammoniacal Copper Zinc Arsenate (ACZA)

4\. Chromated Copper Arsenate (CCA), types A, B, and C

D. Coal Tar Creosote: Conforming to AWPA P 1 or P 2.

E. Creosote-Petroleum Oil Solution: Conforming to AWPA P 3.

F. Copper Naphthenate: Shall conform to AWPA P3 in petroleum conforming
to AWPA P9, for treatment of field cuts, follow the procedures in AWPA
M4 using a preservative with a concentration containing no less than 2
percent copper metal.

G. Washing and Kiln Drying: After treatment, lumber and plywood treated
with waterborne preservatives shall be washed and kiln dried to a
maximum moisture content of 19 and 15 percent respectively.

2.3 FIRE RETARDANT TREATMENT PRACTICES

A. Interior Type A: For interior locations, use chemical formulation tht
produces treated lumber and plywood with the following properties under
conditions present after installation.

1\. Bending strength, stiffness, and fastener-holding capacities are not
reduced below values published by manufacturer of chemical formulation
under elevated temperature and humidity conditions simulating installed
conditions when tested by a qualified independent testing agency.

2\. No form of degradation occurs due to acid hydrolysis or other
courses related to treatment.

3\. Contact with treated wood does not promote corrosion of metal
fasteners.

B. Exterior type: Use for exterior locations and where indicated.

C. Inspect each piece of treated lumber or plywood after drying and
discard damaged or defective pieces.

2.4 FABRICATION

A. Incising:

1\. All lumber except Ponderosa, Red, or Southern Pine, 2-inch nominal
(28 mm actual) or greater in thickness shall be incised prior to
treatment. The spacing and shape of the cutting teeth and the method of
incising shall be such as to produce a uniform penetration.

2\. Lumber 1-inch (25 mm ) in thickness or less shall be incised on the
wide faces only. All other lumber shall be incised on all faces.

B. Framing: Treatment shall be done prior to framing.

C. Sorting: The material shall be sorted into one kind or designated
group of kinds of wood and into pieces of approximately equal size,
moisture and sapwood content. Separate to ensure contact of the treating
medium with all surfaces.

D. Painting: Treated wood shall be clean and dry before painting. Allow
water repellent (W.R.) penta-treated material a minimum of 2 days to
dissipate carrier before painting. Waterborne treated members to be
painted shall have no visible residue on surfaces.

E. Field Treatment: Lumber fabricated in the field or cut after
treatment shall be treated and cared for according to AWPA M 4.

[PART 3: EXECUTION]{.underline}

There are no applicable requirements.

[PART 4: MEASUREMENT AND PAYMENT]{.underline}

4.1 METHOD OF MEASUREMENT

A. Units: The work described in this section will not be measured for
payment.

4.2 BASIS OF PAYMENT

A. Payment: No direct payment for the work described under this section
will be made. The Contractor shall include consideration for this item
in the bid price for other items of the Contract.

END OF SECTION