12/05/14
DESIGN No. _____
SECTION 02711
WALL SUBDRAINAGE SYSTEMS
PART 1 - GENERAL
1.01
DESCRIPTION OF WORK
A.
1.02
1.03
1.04
Provide material, labor, equipment necessary to install
wall subdrainage systems.
Work includes but is not
limited to
installation of perforated and nonperforated piping, prefabricated drainage panel, and
weep structures.
PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION
A.
Wall Drains
B.
Weep Holes
C.
Sleeves for pipe
RELATED SECTIONS
A.
Earthwork............................
Section 02200
B.
Waterproofing........................
Division 7
REFERENCES
References and industry standards listed in this Section
are applicable to the Work. Unless more restrictive
criteria or differing requirements are explicitly stated in
the Specifications, or mandated by governing codes or
regulations, the recommendations, suggestions, and
requirements described in the referenced standards shall be
deemed mandatory and applicable to the Work.
A.
American Society of Testing
standards, latest editions.
A74
B.
and
Materials
(ASTM)
Standard Specification for Cast Iron Soil Pipe and
Fittings.
American
Association
of
State
Highway
Transportation Officials (AASHTO), latest editions
and
M252 Corrugated Polyethylene Drainage Pipe
1.05
SUBMITTALS
A.
Product Data
Provide manufacturers information
instructions for the following:
NYCSCA
and
installation
WALL SUBDRAINAGE SYSTEMS 02711 - 1
12/05/14
B.
DESIGN No. _____
1.
Prefabricated drainage panel
2.
Perforated and non-perorated drainage pipe
Samples
Provide samples of the following items:
C.
1.
Prefabricated drainage panel
2.
Wall drain
Quality Control Submittals
1.
2.
Certificates
a.
Submit
certificate
stating
that
pipe
materials and fittings meet or exceed the
specified requirements.
b.
Certify that drainage system was successfully
checked and tested prior to backfilling.
Contractor Qualifications
Provide
proof
of
Contractor
qualifications
specified under “Quality Assurance”.
1.06
QUALITY ASSURANCE
A.
Qualifications
Company specializing in the installation of each
drainage panels and piping shall have a minimum of two
years experience.
B.
NYCSCA
Regulatory Requirements
1.
Building Code:
Work of this Section within the
Street Line shall conform to all requirements of
the NYC Building Code.
Where more severe
requirements than those contained in the Building
Code are given in this Section, the requirement of
this Section shall govern.
2.
Licensed Master Plumber
a.
A Licensed Master Plumber is responsible for
the installation of all piping work.
b.
The Licensed Master Plumber shall be in full
compliance with the Licensing and Regulatory
Powers set forth in, but not limited to,
WALL SUBDRAINAGE SYSTEMS 02711 - 2
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DESIGN No. _____
Articles
408
and
409
of
Administrative Code (Title 28).
c.
1.07
the
NYC
The Licensed Master Plumber shall file and
obtain all permits required by the NYC
Building
Department
and
Department
of
Environmental Protection and shall call for,
be present at, and supervise all tests as
required by the Building Department and DEP.
DELIVERY, STORAGE, AND HANDLING
A.
Deliver materials undamaged to the site and protect
from the elements.
Do not expose drainage panel to
sunlight.
PART 2 - PRODUCTS
2.01
MANUFACTURERS
A.
B.
2.02
Prefabricated Drainage Panel
1.
Mirafi, Inc., Norcross, GA 30092, available
locally through Ragan Associates, Edison, N.J.
2.
Monsanto Company, St. Louis, MO 63617
High-density Polyethylene Drainage Pipe
1.
Advanced Drainage Systems (ADS), Inc., Hilliard,
OH 43026
2.
Hancor, Inc., Findlay, OH 45840
MATERIALS
A.
Prefabricated Drainage Panels
1.
General
Prefabricated drainage panel shall be a composite
system consisting of a non-woven geotextile
drainage fabric bonded to a three dimensional,
impact resistant plastic core.
2.
Plastic Core
The core shall have the following minimum physical
properties:
NYCSCA
a.
Compressive strength (ASTM D1621)...10800 psf
b.
Flow Q at 3600 psf.........15 gpm/ft of width
WALL SUBDRAINAGE SYSTEMS 02711 - 3
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DESIGN No. _____
3.
c.
Thickness (ASTM D1777)...................3/8"
d.
Weight (ASTM D3776)................ 2.9 oz/ft2
e.
Overlaps:
shall be capable of mechanical
interlocking so as to prevent separation of
the overlaps during backfill.
Filter Fabric:
The filter fabric shall be a
nonwoven geotextile fabric having the following
physical characteristics:
a.
Equivalent opening size COE
CW02215...................................100
b.
Burst strength (ASTM D3786)...........200 psi
c.
Flow (CFMC GET-2).................130 gpm/ft2
d.
Grab strength (ASTM D1682)............100 lbs
e.
Weight (ASTM D3776)................4.0 oz/yd2
The fabric shall be uniformly bonded to the core,
so as to resist being pushed into the flow
channels of the core during backfilling.
The
fabric to core bond shall use pressure sensitive
adhesive, and the fabric shall extend beyond the
edge of the core, so that the fabric can be
adhered in the field across all core overlaps.
4.
B.
NYCSCA
Product
a.
Miradrain 6000 by Mirafi, Inc.
b.
Hydraway 300 by Monsanto Company
Drainage Pipe
1.
Pipe shall be 4” I.D high-density polyethylene
with smooth interior and corrugated exterior
surface conforming to AASHTO M252. Non-perforated
pipe shall be Type S and perforated pipe shall be
Type SP.
2.
Perforations for perforated pipe shall be slot
type with manufacturer’s standard spacing meeting
AASHTO M252.
3.
Joints
and
fittings
shall be manufacturer’s
standard soil-tight joint.
Ninety-degree elbows
are to be the 2-miter type.
WALL SUBDRAINAGE SYSTEMS 02711 - 4
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DESIGN No. _____
4.
C.
Product
1.
Hancor Sure-Lok
perforated.
F477,
perforated
and
non-
2.
ADS N-12 IB ST, perforated and non-perforated
Wall Drains
22 gage stainless steel tube with 22 gage stainless
steel louver face plate and expanded stainless steel
insect screen.
Louver shall be removable with two
tapped screws into frame.
D.
Weep Holes
3" diameter PVC piping.
E.
Cleanouts, sleeves & Connection Piping
Cast iron pipe shall be service weight and conform to
ASTM A74.
2.03
PRE-INSTALLATION CONFERENCE
A.
Prior to beginning the installation of the drainage
panels, it is the responsibility of the Contractor to
convene a meeting at the job site with a representative
of the panel manufacturer and any subcontractors
involved with the installation for the purpose of
coordinating and clarifying the installation procedure.
PART 3 - EXECUTION
3.01
EXAMINATION
A.
3.02
PREPARATION
A.
3.03
Verify that walls are ready to receive the drainage
panels.
Do
not
place
panels
until
required
waterproofing (or dampproofing), is installed.
Install weep holes, wall drains, pipe sleeves, and
cleanouts as part of the Work of Division 3 as shown
on Drawings.
INSTALLATION OF PREFABRICATED DRAINAGE PANEL AND DRAIN PIPE
A.
General
1.
NYCSCA
Where used in conjunction with a waterproofing
membrane, the drainage panels shall be installed
by methods approved by the membrane manufacturer.
WALL SUBDRAINAGE SYSTEMS 02711 - 5
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B.
DESIGN No. _____
2.
Position the panel with the filter fabric toward
the soil. Use washer headed concrete nails driven
through the panel manually by powder actuated
fastening devices. If the panel is being placed
over a waterproofing membrane, use a mastic
adhesive, self-adhesive metal clips, or similar
method subject to approval of the membrane
manufacturer.
3.
Install panel as shown on Drawings. Final bottom
elevation of panel shall be at bottom of pipe.
Provide enough panel to go below pipe to provide
for the fabric overlap of the pipe, which is
accomplished by cutting back the core.
Overlaps
Peel the fabric back from the attached panel to expose
3" of core. Overlap the core of the next panel by 2"
and interlock.
Re-attach the fabric to completely
cover the core overlap.
Shingle each course,
overlapping both the core and the fabric in the
direction of water flow.
C.
NYCSCA
Drainage Pipe
1.
Install piping at elevations shown on Drawing.
Pipe shall rest on well-compacted subgrade.
Provide perforated pipe to collect water at walls,
with non-perforated pipe used to bring the water
to dry wells, sumps or catch basins.
2.
Peel back 12" to 18" of fabric from the drainage
panel core at the bottom of the panel and place
perforated pipe next to the core. If pipe is not
sitting on concrete footing, provide acceptable
support that will keep piping at correct location
during backfilling.
3.
Wrap fabric around the pipe and tuck it securely
behind the core.
Use a stickpin to secure the
fabric envelope containing the pipe at the base of
the panel.
4.
Perforated pipe shall be connected to nonperforated pipe that shall run to catch basin or
sump as indicated on Drawings.
Provide sleeves
through walls.
Provide service weight cast iron
pipe for final 8’-0” of run into sumps and catch
basins within the building.
Grout connections
into sumps and catch basins watertight.
5.
Provide or
Drawings.
connect
to
cleanouts
as
shown
on
WALL SUBDRAINAGE SYSTEMS 02711 - 6
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D.
DESIGN No. _____
Weep Holes and Wall Drains
At weep holes and wall drains, cut a hole in the panel
core corresponding to the size and location of the
opening. Do not cut a hole in the fabric, which would
then require patching.
E.
Terminal Connections and Protrusions
Cover all terminal edges with the integral fabric flap
by cutting the core back approximately 4" and tucking
the fabric around the edge of the core and secure it.
At protrusions, cut the core around the protrusion, cut
an "X" in the fabric, and tape the fabric around the
protrusion.
Dirt, plastic, and concrete must not be
allowed to infiltrate the core.
F.
Backfilling
Place backfill as specified in Section 02200 within 7
days. Avoid damaging the panels with the compactor's
hoe, exhaust, or tamper foot.
Replace any damaged
fabric or panels.
END OF SECTION
Notes to Specifier (Delete from Specification)
1.
This Section intended for use with retaining and, if desired,
can be modified for foundation walls in order to keep the
ground from being saturated due to rain water, which puts
large stresses on the walls.
It is not intended for
dewatering groundwater, as the DEP will not allow this in
most or all cases.
2.
Delete items that don't apply to specific project.
3.
Delete Related Sections that don't apply to specific project.
4.
Coordinate use of other piping, which may be specified in
another Section.
5.
Check compatibility with waterproofing systems.
6.
If crushed stone is used around pipe in conjunction with the
drainage panel, specify and adjust the drainage panel
portion.
Use of geotextile may also be required.
Stone
gradation is given in Section 02724.
Verify there is not
conflict with the provisions of Section 02200.
7.
Delete references to cleanouts if not used.
they are located on the Drawings.
NYCSCA
If used, ensure
WALL SUBDRAINAGE SYSTEMS 02711 - 7
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DESIGN No. _____
8.
Delete drainage piping if not used.
9.
Verify size of weep hole is the same indicated on Drawings.
Wall drains may be used for special architecturally finished
areas and require detailing.
Otherwise, weep holes are
typically placed.
Do not use a weep hole or wall drain
system that places the effluent onto adjacent properties. A
perforated drainage pipe system is required for this case.
Delete wall drains and/or weep holes if not used.
Verify
terminology used on Drawings matches that of Specification.
10.
There are several references that say to refer to Drawings.
Ensure that those items are shown on the Drawings if
applicable.
11.
Ensure that the final 8’-0” of pipe of the drainage system is
indicated on the Drawings as cast iron if they go into sumps
or catch basins within the building.
NYCSCA
WALL SUBDRAINAGE SYSTEMS 02711 - 8
12/05/14
DESIGN No. _____
LIST OF SUBMITTALS
SUBMITTAL
DATE SUBMITTED
Product Data:
1.
2.
_____________
Prefabricated drainage panel
Drainage pipe
Samples:
1.
2.
_____________
Prefabricated drainage panel
Wall drain
Certificates:
1.
2.
_____________
Material certification for each item
Testing and installation certification
Qualifications:
1.
DATE APPROVED
_____________
Installer
* * *
NYCSCA
WALL SUBDRAINAGE SYSTEMS 02711 - 9