Contract Number: TW 0928

Date: June 5, 1998

SPECIAL SPECIFICATION

SECTION 07160-S

[BITUMINOUS DAMPPROOFING]{.underline}

Page

[PART 1 - GENERAL]{.underline}

1.01 Description of Work

1.02 References

1.03 Submittals

1.04 Quality Assurance

1.05 Delivery, Storage, and Handling

1.06 Project conditions

PART 2 - PRODUCTS

2.01 Manufacturers 4

2.02 Materials

2.03 Miscellaneous Materials

PART 3 - EXECUTION

3.01 Preparation

3.02 Application

3.03 Protection and Cleaning 6

3.04 Installation of Dampproof Protection Course 6

SPECIAL SPECIFICATION

SECTION 07160-S

[BITUMINOUS DAMPPROOFING]{.underline}

# PART 1 - GENERAL

## 1.01 [DESCRIPTION OF WORK]{.underline}

[This Section includes]{.underline} liquid cold-applied one-part
moisture curing elastomeric bitumen modified polyurethane dampproofing
membrane.

## 1.02 [REFERENCES]{.underline}

[American Society of Testing and Materials (ASTM)]{.underline}

D41 Specification for Asphalt Primer Used in Roofing, Dampproofing, and
Waterproofing

D412 Test Methods for Rubber Properties in Tension

D2240 Test Method for Rubber Property - Durometer Hardness

C836 Test Method for Measuring High Solids Content

E84 Test Method for Surface Burning Characteristics of Building
Materials

E96 Test Methods for Water Vapor Transmission of Materials

## 1.03 [SUBMITTALS]{.underline}

[Submit]{.underline} the following in accordance with Conditions of
Contract and Division 1, Section "Descriptive Submittals\".

A. [Product Data]{.underline}: Include data substantiating that
materials comply with specified requirements for each dampproofing
material specified.

B. [Certification]{.underline}: Provide certification of Contractor to
perform work as specified in Section 1.04 B Quality Assurance.

C. [Certification:]{.underline} Provide certification stating that all
products used are asbestos-free and lead paint-free.

## 1.04 [QUALITY ASSURANCE]{.underline}

A. [Manufacturer Qualifications]{.underline}: The manufacturer of the
specified product shall have had in existence, for a minimum of 10
years, a program of training, certifying, and technically supporting a
nationally organized Approved Contractor Program with annual
re-certification of its participants.

B. [Installer Qualifications]{.underline}: Engage an experienced
Installer who is a Certified and Approved Installer to the manufacturer
of the specified product and has completed a program of instruction in
the use of a water-based elastomeric membrane for dampproofing a
substrate. Provide a certification from the manufacturer attesting to
their Approved Installer status.

1\. At the discretion of the Sandia Delegated Representative (SDR), bids
shall be accepted from Contractors other than a Certified and Approved
Installer of the specified product.

2\. Said Installer shall provide the SDR with five job references where
they have successfully coated a substrate with the specified product.

C. [Single-Source Responsibility]{.underline}: Obtain primary
dampproofing materials and primers from one source and by a single
manufacturer. Provide secondary materials only as recommended by
manufacturer of primary materials.

## 1.05 [DELIVERY, STORAGE, AND HANDLING]{.underline}

A. [Deliver]{.underline} the specified product in original, unopened
containers with the manufacturer's name, labels, product identification
and batch numbers.

B. [Store]{.underline} the specified product as recommended by the
manufacturer.

## 1.06 [PROJECT CONDITIONS]{.underline}

A. [Substrate]{.underline}: Proceed with dampproofing work only after
substrate construction and penetrating work have been completed.

B. [Weather]{.underline}: Proceed with dampproofing work only when
existing and forecasted weather conditions will permit work to be
performed in accordance with manufacturer\'s recommendations.

C. [Protection]{.underline}: Precautions should be taken to avoid damage
to any surface near the work zone due to the mixing and handling of the
water-based elastomeric membrane.

# 

# PART 2 - PRODUCTS

## 2.01 [MANUFACTURERS]{.underline}

A. [Dampproofing Membrane:]{.underline} Provide HLM 5000 membrane
system, as manufactured by Sonneborn Building Products Division/ChemRex,
Inc. or approved equal.

B. [Protection Board]{.underline}: Provide Protection Course II
protection board, as manufactured by Sonneborn Building Products
Division/ChemRex, Inc. or approved equal.

C. [Substitutions]{.underline}: The use of other than the specified
product will be considered providing the Contractor requests its use in
writing to the SDR. This request shall be accompanied by the following:

1\. Certificate of compliance from an approved independent testing
laboratory that the proposed substitute product meets or exceeds the
specified performance criteria, tested in accordance with the specified
test standards

2\. Documented proof that the proposed substitute product has a five
year proven record of sealing absorptive surfaces, confirmed by actual
field tests and five successful installations that the SDR can verify.

## 2.02 [MATERIALS]{.underline}

[Liquid Cold-Applied, Bitumen-Modified Polyurethane
Dampproofing]{.underline}: Non-combustible, single-component , moisture
curing, cold-applied elastomeric, bitumen-modified urethanen coating,
compounded to penetrate substrate and build to moisture-resistant
coating. Membrane shall be capable of being applied to vertical and
horizontal surfaces.

[Provide bitumen-modified urethane]{.underline} complying with the
following performance criteria:

1\. [Tensile Properties]{.underline}: ASTM D412

a\. Tensile Strength: 125 psi (862 kPa) min.

b\. Average Elongation: 600%

2\. [Hardness]{.underline}: Shore A - 35 -- 40 max., ASTM D2240

3\. [Moisture Vapor Transmission]{.underline}: 0.15 perm inches, ASTM
E96

## 2.03 [MISCELLANEOUS MATERIALS]{.underline}

A. [Primer]{.underline}: Urethane sealant primer complying with ASTM
D41, for bitumen-modified urethane dampproofing.

B. [Protection Boards]{.underline}: ¼" multi-layered fiber board bonded
and laminated with water-resistant adhesive or Minimum 1/2 inch (13 mm)
thick extruded polystyrene foam insulation boards for backfilling
operations that comply with the following requirements:

1\. [Water Absorption]{.underline}: 1.7 % by volume, ASTM D2842.

2\. [Compressive Strength]{.underline}: 15 psi (103 kPa), ASTM D1621.

3\. [Permeance]{.underline}: 2 Perms, ASTM E96.

4.  [Flame Spread]{.underline}: Maximum 25, ASTM E84.

5.  [Burst Strength]{.underline}: 175 psi

6.  [Puncture Resistance]{.underline}: 45 inch-pounds

# PART 3 - EXECUTION

## 3.01 [PREPARATION]{.underline}

A. [Surface Preparation]{.underline}: Clean substrate of projections and
substances detrimental to work to provide smooth substrate to receive
dampproofing. Comply with manufacturer's recommendations.

B. [Fill voids, seal joints]{.underline}, and repair all cracks in the
substrate to achieve a smooth, level surface as required by the SDR.

C. [Install separate flashings and corner protection
stripping]{.underline} as recommended by prime materials manufacturer,
where indicated to precede application of dampproofing. Comply with
details shown and manufacturer\'s recommendations. Give particular
attention to requirements at building expansion joints, if any.

D. [Prime substrate]{.underline} as recommended by manufacturer.

E. [Protection of Other Work]{.underline}: Do not allow liquid and
mastic compounds to enter and clog drains and conductors. Prevent
spillage and migration onto other surfaces of work, by masking or
otherwise protecting adjoining work.

## 3.02 [APPLICATION]{.underline}

A. [Comply with manufacturer\'s recommendations]{.underline}, except
where more stringent requirements are indicated or specified and where
Project conditions require extra precautions or provisions to ensure
satisfactory performance of work.

B. [Apply dampproofing]{.underline} to all exterior below-grade surfaces
of exterior underground walls in contact with earth or other backfill.

C. [Apply vertical dampproofing]{.underline} down walls from finished
grade line to top of footing, extend over top of footing, and down a
minimum of 6 inches (150mm) over outside face of footing. Extend 12
inches (300mm) onto intersecting walls and footings, but do not extend
onto surfaces that will be exposed to view when project is completed.

D. [Application Technique:]{.underline} Trowel, spray or roller apply
dampproofing membrane per manufacturers standards. Apply at a rate of 5
gal/100 sq. Ft (2 L/sq. m), to produce a uniform, dry thickness.
Application thickness shall be between 75-90 wet mil thickness (45-55
dry mil thickness) on horizontal surfaces or approximately 55 wet mil
thickness (40 dry mil thickness) to vertical surfaces. Care must be
taken to obtain a pin-hole free continuous film.

## 3.03 [PROTECTION AND CLEANING]{.underline}

[Protect]{.underline} exterior, below-grade dampproofing membrane from
damage until backfill is completed. Remove overspray and spilled
materials from surfaces not intended to receive dampproofing.

## 3.04 [INSTALLATION OF DAMPPROOF PROTECTION COURSE]{.underline}

[Install protection course]{.underline} of type indicated over
completed-and-cured dampproofing treatment. Comply with dampproofing
materials manufacturer\'s recommendations for method of support or
attachment of protection materials. Support with spot application of
plastic cement where not otherwise indicated.

END OF SECTION