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

READ AND **REMOVE THIS PAGE** BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

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

[DIVISION 15: MECHANICAL]{.underline}

SECTION 15495 - ROOF DRAINAGE PIPING SYSTEM

USE: Furnishing and installing a roof drainage piping system.

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[\_\_\_\_\_\] 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 and 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 specification that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST
110, or call (303) 987-6868.

**DRAWING DATA REQUIRED:**

**REQUIRED SPEC MODIFICATIONS:**

[GENERAL NOTES]{.underline}

A. Whenever entire articles, paragraphs or subparagraphs are not
applicable, the articles, paragraphs or subparagraphs should be deleted;
when necessary, reletter or renumber articles, paragraphs or
subparagraphs.

B. THIS GUIDE IS NOT INTENDED AS A SUBSTITUTE FOR READING THE ENTIRE
SECTION.

[TECHNICAL NOTES]{.underline}

A. 1.1B: Select or add applicable specification sections. Do not list
specification sections from Division 15.

B. 1.2: Select or add applicable references.

C. 1.3B: Insert number of copies of the manufacturer\'s descriptive data
required. Normally 5 copies are required. Distribution after review is
normally 1 copy to the COR, 3 copies to the Contractor, and 1 copy to
the project file.

D. 1.3C: Insert number of copies of the manufacturer\'s installation
instructions required. Normally 5 copies are required. Distribution
after review is normally 1 copy to the COR, 3 copies to the Contractor,
and 1 copy to the project file.

E. 4.1 and 4.2: When a \"lump sum\" Contract is used, DELETE the title
PART 4: MEASUREMENT AND PAYMENT, and both articles from this section.
Measurement and payment will be addressed in Part 4 of Section 01010
-Summary of Work.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes: 12/01

Metric:

Technical Update: 02/91

SECTION 15495

ROOF DRAINAGE PIPING SYSTEM

[PART 1: GENERAL]{.underline}

1.1 SUMMARY:

A. Section Includes: Furnishing and installing inlets, connections,
piping, hangers, supports, and other necessary accessories for a roof
drainage system.

1.2 REFERENCES:

A. American Society for Testing and Materials:

ASTM A 74‑87 Cast Iron Soil Pipe Fittings

ASTM D 2661-90 Acrylonctrile-Butadiene-Styrene (ABS) Plastic Drain,
Waste and Vent Pipe and Fittings

ASTM D 2665-89 Poly (Vinyl Chloride) (PVC) Plastic Drain, Waste and Vent
Piping and Fittings

ASTM F 708‑81 Standard Practice for the Design and Installation of Rigid
Pipe Hangers

B. Federal Specifications:

Fed. Spec. A‑A‑1192 Bracket, Pipe

Fed. Spec. L‑P‑001221 A Pipe and Fittings, Plastic, Rigid, Styrene
Rubber, Drain and Sewer

Fed. Spec. L‑P‑00315 D Pipe and Tubing, Nonmetallic (Plastic)

Fed. Spec. WW‑P‑401 E Pipe and Pipe Fittings, Cast Iron, Soil

1.3 SUBMITTALS:

A. General: Submittals shall be according to Section 01300 - Submittals.

B. Manufacturer\'s Literature: Submit \[\_\_\_\_\] copies of the
manufacturer\'s descriptive data for the \[drain and piping system\]
\[pipe changes\] \[and\] \[fastening system\] to be used on this
project:

C. Installation Instructions: Submit \[\_\_\_\_\] copies of the
manufacturer\'s installation instructions for \[\_\_\_\_\_\_\_\_\_\_\]
\[the following items\] to be used on this project.

[PART 2: PRODUCTS]{.underline}

2.1 MATERIALS:

A. Roof Drain Inlets: Roof drain inlets shall be of a type to conform
with the roofing system. The inlet shall be designed by the manufacturer
for use with single ply roofing membrane without use of sealants except
at mating surfaces. There shall be no gaps or voids that require filling
with sealants. The Contractor shall submit a mock‑up or whatever other
drawings or literature the Contracting Officer deems appropriate to
determining the suitability of the inlet. The inlet shall be compatible
with the drain piping system used and shall conform to the Federal
Specification for the type of material it is made from.

B. Piping, Fittings, and Couplings: Piping may be plastic or cast‑iron
except for the five inch riser which must be cast iron. The piping shall
be joined with compatible fittings with joints that may be easily
disconnected or cleanout plugs at least every 100 feet along the pipe.
The piping shall be installed according to the sizes shown on the
drawings. The piping and fittings shall meet ASTM D 2661, ASTM D 2665
and Fed. Spec. L‑P‑001221A, or W‑W‑P‑401E, depending on the type of
piping used.

C. Piping Hangers: The piping shall be supported at ten foot minimum
intervals with pipe hangers approved by the Contracting Officer. The
hangers shall include the pipe support, the connecting pipe to the roof
structure and clamps or other fasteners to connect the hanger to the
roof structure. The connection method shall be approved by the
Contracting Officer. Pipe hangers shall conform to Fed. Spec. A‑A‑1192.

[PART 3: EXECUTION]{.underline}

3.1 INSTALLATION:

A. Requirements: The Contractor shall install the piping system as shown
on the drawings. The Contractor shall insure that the pipe runs drain
freely and do not interfere with other equipment or systems installed in
the building. Should a conflict occur, the Contractor shall be
responsible for designing and modifying conflicting systems at no
additional cost to the Government. The piping shall be pitched a minimum
of 1/8‑inch per foot.

3.2 FIELD QUALITY CONTROL:

A. Testing: The Contractor shall conduct the hydrostatic test. The
Contractor shall furnish necessary equipment, labor and materials to
conduct the hydrostatic test. Testing shall be conducted in the presence
of the Contracting Officer who shall be given 48 hours notice before any
test is to be conducted. The Contractor shall simulate a flow blockage
of the system at the dry well. The entire system shall be filled with
water to the point of overflow on the roof and shall remain in this
condition for 24 hours. If any leaks develop, the test shall be
continued or repeated until it is leak‑free for 24 hours. The Contractor
shall be responsible for cleaning up any leakage during testing and
repairing to the original condition any building parts damaged by
leakage.

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

4.1 METHOD OF MEASUREMENT:

A. ab 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