**November 21, 1997**

**Contract \# TW-0928**

SPECIAL SPECIFICATION

SECTION 05720-S

ORNAMENTAL HANDRAILS AND RAILINGS

Page

[PART 1 - GENERAL]{.underline}

1.01 Related Documents 2

1.02 Summary 2

1.03 Definitions 2

1.04 Performance Requirements 2

1.05 Submittals 3

1.06 Quality Assurance 4

1.07 Storage 5

1.08 Project Conditions 6

1.09 Sequencings and Scheduling 6

PART 2 - PRODUCTS

2.01 Manufacturers 7

2.02 Metals 7

2.03 Fasteners 8

2.04 Grout and Anchoring Cement 8

2.05 Fabrication 9

2.06 Finishes, General 12

2.07 Aluminum Finishes 12

PART 3 - EXECUTION

3.01 Preparation 13

3.02 Installation, General 13

3.03 Railing Connections 14

3.04 Anchoring Posts [14]{.smallcaps}

3.05 Anchoring Rail Ends 14

3.06 Attaching Handrails to Walls 14

3.07 Field Quality Control 15

3.08 Adjusting and Cleaning 15

3.09 Protection 15

**SPECIAL SPECIFICAION**

**MASTERSPEC text, Copyright 1994, AIA, The American Institute of
Architects**

**Paragraph number formatting method, Copyright 1988, ARCOM,
Architectural Computer Services, Inc.**

**SECTION 05720-S**

**[ORNAMENTAL HANDRAILS AND RAILINGS]{.underline}**

**THIS SECTION USES THE TERM ARCHITECT. CHANGE THIS TERM AS NECESSARY TO
MATCH THE ACTUAL TERM USED TO IDENTIFY THE DESIGN PROFESSIONAL AS
DEFINED IN THE GENERAL AND SUPPLEMENTARY CONDITIONS.**

[PART 1 - GENERAL]{.underline}

1.01 [RELATED DOCUMENTS]{.underline}

> A. Drawings and general provisions of the Contract, including General
> and Supplementary Conditions and Division 1 Specification Sections,
> apply to this Section.

1.02 [SUMMARY]{.underline}

> A. This Section includes aluminum ornamental handrails and railing
> systems.

LIST BELOW ONLY PRODUCTS, CONSTRUCTION, AND EQUIPMENT FOR THIS PROJECT
THAT THE READER MIGHT EXPECT TO FIND IN THIS SECTION BUT ARE SPECIFIED
ELSEWHERE. VERIFY THAT THE SECTION TITLES LISTED BELOW FOR THIS
PROJECT\'S SPECIFICATIONS ARE CORRECT.

> B. Related Sections: The following Sections contain requirements that
> relate to this Section.
>
> 1\. Division 5 Section "Metal Fabrications" for steel pipe handrails
> and railing systems associated with metal stairs.
>
> 2\. Division 15 Section for electrical service and connections for
> illuminated handrails and railing systems.

1.03 [DEFINITIONS]{.underline}

RETAIN 2 PARAS BELOW WHEN FABRICATOR IS MADE RESPONSIBLE FOR DESIGNING
ARCHITECTURAL PRECAST UNITS. SEE AIA DOCUMENT A201, 3.12.11 FOR
CONTRACTOR\'S RESPONSIBILITY FOR CALCULATIONS IF PARA BELOW IS RETAINED
WITH \"PROFESSIONAL ENGINEER QUALIFICATIONS\" PARA UNDER \"QUALITY
ASSURANCE\" ARTICLE. DELETE OR MODIFY PARAS BELOW WHERE ARCHITECT
ASSUMES OR IS REQUIRED BY LAW TO ASSUME DESIGN RESPONSIBILITY.

> A. Definitions ASTM E 985 for railing-related terms apply to this
> Section.

1.04 [PERFORMANCE REQUIREMENTS]{.underline}

> A. General: In engineering handrail and railing systems to withstand
> structural loads indicated, determine allowable design working
> stresses of railing materials based on the following:
>
> 1\. Aluminum: AA "Specifications for Aluminum Structures."

WHEN A DESIGN REFERENCE SAMPLE OR CONTROL SAMPLE IS PRESELECTED, DELETE
PARA BELOW.

> B. Structural Performance of Handrails and Railing Systems: Engineer,
> fabricate, and install handrails and railing systems to withstand the
> following structural loads without exceeding the allowable design
> working stress of the materials for handrails, railing systems,
> anchors, and connections. Apply each load to produce the maximum
> stress in each of the respective components comprising handrails and
> railing systems. Comply with Uniform Building Code 1994 Table 16-B.

RETAIN BELOW IF PROCEDURES FOR WELDER CERTIFICATION ARE INCLUDED UNDER
\"QUALITY ASSURANCE\" ARTICLE.

C. Thermal Movements: Allow for thermal movement resulting from the
following maximum change (range) in ambient temperature in engineering,
fabricating, and installing handrails and railing systems to prevent
buckling, opening of joints, overstressing of components and
connections, and other detrimental effects. Base engineering calculation
on actual surface temperatures of material due to both solar heat gain
and nightime sky heat loss.

> 1\. Temperature Change (Range): 120 deg F (67 deg C), ambient; 180 def
> F (100 deg C), material surfaces.
>
> D. Control of Corrosion: Prevent galvanic action and other forms of
> corrosion by insulating metals and other materials from direct contact
> with incompatible materials.

1.05 [SUBMITTALS]{.underline}

A. General: Submit each item in this Article according to the Conditions
of the Contract and Division 1 Specification Section 1300.

B. Product data for manufacturer's product lines of handrails and
railing systems assembled from standard components. Submit product data
for grout, anchoring cement, and paint products.

USUALLY RETAIN SUBPARA BELOW. REVISE BELOW TO INCLUDE ARCHITECTURAL
PRECAST CONCRETE (APA) PLANT CERTIFICATION WHEN DESIRED. APA
CERTIFICATION WAS ESTABLISHED IN 1993 AND IS A DIFFERENT PROGRAM THAN
THAT OFFERED BY PCI.

VERIFY THAT FABRICATORS ARE REQUIRED TO BE REGISTERED AND APPROVED WITH
AUTHORITIES HAVING JURISDICTION BEFORE RETAINING SUBPARA BELOW. LIST
APPROVED FABRICATORS IN PART 2 WHEN REQUIRED. DELETE BELOW IF NOT
REQUIRED.

> C. Shop drawings showing fabrication and installation of handrails and
> railing, including plans, elevations, sections, details of components,
> and attachments to other units of Work.
>
> 1\. For installed handrails and railing systems indicated to comply
> with certain design loadings, include structural analysis data sealed
> and signed by the qualified professional engineer who was responsible
> for their preparation.
>
> D. Submit structural calculations to demonstrate compliance with
> performance requirements described in Article 1.04.
>
> E. Samples for initial selection in the form of short sections of
> railings or flat sheet metal samples showing available mechanical
> finishes.
>
> F. Samples for verification of each type of exposed finish required,
> prepared on components indicated below of same thickness and metal
> indicated for final unit of Work. Where finishes involve normal color
> and texture variations, include sample sets showing the full range of
> variations expected.
>
> 1\. 6-inch- (150-mm) long sections of each distinctly different linear
> railing member, including handrails, top rails, posts, and balusters.

2\. Fittings and brackets.

> 3\. Welded connections.
>
> 4\. Assembled sample of railing system, made from full-size
> components, including top rail, post, handrail and infill. Show method
> of finishing members at intersections. Sample need not be full height.
>
> G. Qualification data for firms and persons specified in the "Quality
> Assurance" Article to demonstrate their capabilities and experience.
> Include lists of completed projects with project names and addresses,
> names and addresses of architects and owners, and other information
> specified.
>
> H. Product test reports from a qualified independent testing agency
> evidencing compliance of handrails and railing systems with
> requirements based on comprehensive testing of current products.

I. Test reports from independent testing agency evidencing compliance of
handrails and railing systems with ASTM E 985.

J. Test reports from independent testing agency evidencing compliance of
handrails and railing systems with ASTM E 985.

DELETE BELOW WHEN FIELD SAMPLES ABOVE WILL SUFFICE AND/OR MOCKUPS ARE
NOT REQUIRED. IF RETAINING, INDICATE LOCATION, SIZE, AND OTHER DETAILS
OF MOCKUPS ON DRAWINGS OR DESCRIBE REQUIREMENTS BELOW.

1.06 [QUALITY ASSURANCE]{.underline}

> A. Testing Agency Qualifications: To qualify for acceptance, an
> independent testing agency must demonstrate to SDR's satisfaction,
> based on evaluation of agency-submitted criteria conforming to ASTM E
> 699, that it has the experience and capability to satisfactorily
> conduct the testing indicated without delaying the Work.

B. Preconstruction Testing Service: Contractor shall employ and pay a
qualified independent testing agency to perform preconstruction testing
indicated.

C. Test each type of handrail and railing system for compliance with
requirements specified for performance and test methods. Conduct tests
using specimens and assemblies representative of proposed materials and
construction.

1\. Notify SDR one week in advance of the dates and times when
assemblies will be erected.

> 2\. Remove assemblies when testing program is completed and dispose of
> legally; do not reuse materials on the Project.

D. Single-Source Responsibility: Obtain handrails and railing systems of
each type and material from a single manufacturer.

E. Engineer Qualifications: A professional engineer legally authorized
to practice in New Mexico and experienced in providing engineering
services of the kind indicated that have resulted in the installation of
handrails and railing systems similar to this Project in material,
design and extent and that have a record of successful in-service
performance.

F. Mockups: Prior to installing railings, construction mockups for each
form of railing system and finish required to verify selection under
sample submittals and to demonstrate aesthetic effects as well as
qualities of materials and execution. Build mockups to comply with the
following requirements, using materials indicated for final unit of
Work.

> 1\. Place mockups on site in the location indicated. Provide mockups
> consisting of 2 posts, top rail, infill area, and anchorage system
> components that are full height and not less than 24 inches (600 mm)
> in length.

2\. Notify SDR one week in advance of the dates and times when mockups
will be constructed.

3\. Demonstrate the proposed range of aesthetic effects and workmanship.

4\. Obtain SDR's acceptance of mockups before start of final unit of
Work.

5\. Retain and maintain mockups during construction in an undisturbed
condition as a standard for judging the completed Work.

> a\. Accepted mockups in an undisturbed condition at the time of
> Substantial Completion may become part of the completed Work.

1.07 [STORAGE]{.underline}

> A. Store handrails and railing systems inside a well-ventilated area,
> away from uncured concrete and masonry and protected from weather,
> moisture, soiling, abrasion, extreme temperatures, and humidity.

1.08 [PROJECT CONDITIONS]{.underline}

> A. Field Measurements: Where handrails and railings are indicated to
> fit to other construction, check actual dimensions of other
> construction by accurate field measurements before fabrication; show
> recorded measurements on final shop drawings. Coordinate fabrication
> schedule with construction progress to avoid delaying the Work.

1.09 [SEQUENCING AND SCHEDULING]{.underline}

A. Sequence and coordinate installation of wall handrails as follows:

> 1\. Mount handrails only on completed walls. Do not support handrails
> temporarily by any means not satisfying structural performance
> requirements.
>
> 2\. Mount handrails on gypsum board assemblies only where reinforced
> to receive anchors and where the locations of concealed reinforcements
> have been clearly marked for the benefit of the installer.

[PART 2 - PRODUCTS]{.underline}

2.01 [MANUFACTURERS]{.underline}

RETAIN THIS ARTICLE WHEN A LIST OF FABRICATORS IS DESIRED.

> A. Available Manufacturers: Subject to compliance with requirements,
> manufacturers offering handrails and railing systems that may be
> incorporated in the Work include, but are not limited to, the
> following:

1\. Aluminum Ornamental Railing Systems:

Aluminum Tube Railing, Inc.

Architectural Metal Works.

Blum: Julius Blum & Co., Inc.

Blumcraft of Pittsburgh.

Braun: J.G. Braun Co.

CraneVeyor Corp.

Livers Bronze Co., Inc.

Newman Brothers, Inc.

Poma Corporation.

Rippel Architectural Metals, Inc.

Sterling Factories, Inc.

Superior Aluminum Products, Inc.

Wausau Specialty Products.

Wylie Systems.

2.02 [METALS]{.underline}

INSERT AND REVISE TO SUIT SPECIFIC REQUIREMENTS.

> A. General: Provide metal free from surface blemishes where exposed to
> view in the finished unit. Exposed-to-view surfaces exhibiting
> pitting, seam marks, roller marks, stains, discolorations, or other
> imperfections on finished units are not acceptable.

B. Aluminum: Alloy and temper recommended by aluminum producer and
finisher for type of use and finish indicated, and with not less than
the strength and durability properties of the alloy and temper
designated below for each aluminum form required:

1\. Extruded Bar and Tube: ASTM B 221 (ASTM B 221M), alloy 6063T5/52.

2\. Extruded Structural Pipe and Tube: ASTM B 429, 6063-T6.

3\. Drawn Seamless Tube: ASTM B 210 (ASTM B 210M), 6063-T832.

4\. Plate and Sheet: ASTM B 209 (ASTM B 209M), 6061-T6.

5\. Die and Hand Forging: ASTM B 247 (ASTM B 247M), 6061-T6.

6\. Castings: ASTM B 26/B 26M, A356-T6.

2.03 [FASTENERS]{.underline}

DELETE, REVISE, OR ADD TO BELOW TO SUIT REINFORCEMENT REQUIREMENTS.
CONSIDER JOINTLY REVIEWING SELECTIONS WITH FABRICATORS WHEN
\"PERFORMANCE REQUIREMENTS\" ARTICLE IS RETAINED.

A. Fasteners for Anchoring Railings to Other Construction: Select
fasteners of the type, grade, and class required to produce connections
that are suitable for anchoring railing to other types of construction
indicated and capable of withstanding design loadings.

> 1\. For aluminum railings, provide fasteners fabricated from type 304
> or type 316 stainless steel.

RETAIN PARA BELOW WHEN WELDING OF REINFORCING IS ANTICIPATED.

> B. Fasteners for Interconnecting Railing Components: Use fasteners of
> same basic metal as the fastened metal. Do not use metals that are
> corrosive or incompatible with materials joined.
>
> 1\. Provide concealed fasteners for interconnecting handrail and
> railing components and for attaching them to other work, except where
> otherwise indicated.
>
> 2\. Provide Phillips flathead machine screws for exposed fasteners,
> unless otherwise indicated.
>
> C. Cast-in-Place and Postinstalled Anchors: Anchors of type indicated
> below, fabricated from corrosionresistant materials with capability to
> sustain, without failure, a load equal to 4 times the load imposed
> when installed in concrete, as determined by testing per ASTM E 488
> conducted by a qualified independent testing agency.

1\. Cast-in-place anchors.

2\. Expansion anchors.

2.04 [GROUT AND ANCHORING CEMENT]{.underline}

[RETAIN THIS ARTICLE WHEN FABRICATORS REQUIRE UNITS TO BE
PRESTRESSED.]{.underline}

> A. Nonshrink, Nonmetallic Grout: Premixed, factory-packaged,
> nonstaining, noncorrosive, nongaseous grout complying with ASTM C
> 1107. Provide grout specifically recommended by manufacturer for
> interior and exterior applications.
>
> B. Interior Anchoring Cement: Factory-packaged, nonshrink,
> nonstaining, hydraulic controlled expansion cement formulation for
> mixing with water at Project site to create pourable anchoring,
> patching, and grouting compound. Use for interior applications.

C. Erosion-Resistant Aching Cement: Factory-packaged, nonshrink,
nonstaining, hydraulic controlled expansion cement formulation for
mixing with water at Project site to create pourable anchoring,
patching, and grouting compound. Provide formulation that is resistant
to erosion from water exposure without need for protection by a sealer
or waterproof coating and that is recommended for exterior use by
manufacturer.

D. Products: Subject to compliance with requirements, provide one of the
following:

1\. Nonshrink, Nonmetallic Grouts:

B-6 Construction Grout; W.R. Bonsal Co.

Diamond-Crete Grout; Concrete Service Materials Co.

Supreme; Cormix Construction Chemicals.

Sure-grip High Performance Grout; Dayton Superior Corp.

Euco N-S Grout; Euclid Chemical Co.

Five Star Grout; Five Star Products.

Crystex; L & M Construction Chemicals, Inc.

Vibropruf #11; Lamber Corp.

Masterflow 928 and713; Master Builders Technologies, Inc.

Sealtight 588 Grout; W. R. Meadows, Inc.

Sonogrout 14; Sonneborn Building Products \-- ChemRex, Inc.

Kemset; The Spray-Cure Company.

2\. Interior Anchoring Cement:

Ankertite Cement; Dayton Superior Corp.

Por-Rok; Minwax Construction Products Divison.

3\. Erosion-Resistant Anchoring Cement:

Bonsal Anchor Cement; W.R. Bonsal Co.

Super Por-Rok; Minwax Construction Products Division

Thorogrip; Thoro Systems Products.

2.05 [FABRICATION]{.underline}

[DELETE MATERIALS NOT REQUIRED. REVISE TO SUIT PROJECT.]{.underline}

> A. General: Fabricate handrails and railing systems to comply with
> requirements indicated for design, dimensions, details, finish, and
> member sizes, including wall thickness of hollow members, post
> spacings, and anchorage, but not less than that required to support
> structural loads.

SELECT OR REVISE BELOW TO SUIT PROJECT. PCI NOTES THAT MIXING WITH WHITE
CEMENT MAY IMPROVE COLOR UNIFORMITY OF GRAY CEMENT.

B. Assemble railing systems in shop to the greatest extent possible to
minimize field splicing and assembly. Disassemble units only as
necessary for shipping and handling limitations. Clearly mark units for
reassembly and coordinated installation. Use connections that maintain
structural value of joined pieces.

C. Form changes in direction of railing members as follows:

1\. As detailed.

2\. By radius bends of radius indicated.

3\. By flush radius bends.

4\. By bending.

5\. By mitering at elbow bends.

6\. By insertion of prefabricated flush elbow fittings.

7\. By any method indicated above, applicable to change of direction
involved.

D. Form simple and compound curves by bending members in jogs to produce
uniform curvature for each repetitive configuration required; maintain
profile of member throughout entire bend without buckling, twisting,
cracking, or otherwise deforming exposed surfaces of handrail and
railing components.

E. Welded Connections: Fabricate railing systems and handrails for
connecting members by welding. For connections made during fabrication,
weld corners and seams continuously to comply with the following:

> 1\. Use materials and methods that minimize distortion and develop
> strength and corrosion resistance of base metals.
>
> 2\. Obtain fusion without undercut or overlap.

3\. R emove welding flux immediately.

> 4\. At exposed connections, finish exposed welds and surfaces smooth
> and blended so that no roughness shows after finishing and welded
> surface matches contours of adjoining surfaces.

F. Nonwelded Connections: Fabricate railing systems and handrails by
connecting members with railing manufacturer's standard concealed
mechanical fasteners and fittings, unless otherwise indicated. Fabricate
members and fittings to produce flush, smooth, rigid, hairline joints.

1\. Fabricate splice joints for field connection using epoxy structural
adhesive where this represents manufacturer's standard splicing method.

> G. Brackets, Flanges, Fittings, and Anchors: Provide manufacturer's
> standard wall brackets, flanges, miscellaneous fittings, and anchors
> to connect handrail and railing members to other construction.
>
> H. Provide inserts and other anchorages devices to connect handrails
> and railing systems to concrete or masonry work. Fabricate anchorage
> devices capable of withstanding loads imposed by handrails and railing
> systems. Coordinate anchorage devices with supporting structure.
>
> I. Shear and punch metals cleanly and accurately. Remove burrs from
> exposed cut edges.
>
> J. Ease exposed edges to a radius of approximately 1/32 inch (1 mm),
> unless otherwise indicated. Form bentmetal corners to the smallest
> radius possible without causing grain separation or otherwise
> impairing work.
>
> K. Cut, reinforce, drill, and tap components, as indicated, to receive
> finish hardware, screws, and similar items.
>
> L. Provide weep holes or another means to drain entrapped water in
> hollow sections of railing members that are exposed to exterior or to
> moisture from condensation or other sources.

M. Fabricate joints that will be exposed to weather in a watertight
manner.

N. Close exposed ends of handrail and railing members with prefabricated
end fittings.

O. Provide wall returns at ends of wall-mounted handrails, unless
otherwise indicated. Close ends of returns unless clearance between end
of the railing and will is 1/4 inch (6 mm) or less.

P. Fillers: Provide steel sheet or plate fillers of thickness and size
indicated or required to support structural loads of handrails where
needed to transfer wall bracket loads through wall finishes to
structural supports. Size fillers to suit wall finish thicnesses. Size
fillers to produce adequate bearing to prevent bracket rotation and
overstressing of substrate.

2.06 [FINISHES, GENERAL]{.underline}

SELECT OR REVISE CONNECTION MATERIALS TO SUIT PROJECT; DELETE OTHERS.

> A. Comply with NAMM "Metal Finishes Manual" for recommendations
> relative to applying and designating finishes.

B. Protect mechanical finishes on exposed surfaces from damage by
applying a strippable, temporary protective covering prior to shipment.

> C. Appearance of finished Work: Variations in appearance of abutting
> or adjacent pieces are acceptable if they are within one half of the
> range of approved samples. Noticeable variations in the same piece are
> not acceptable. Variations in appearance of other components are
> acceptable if they are within the range of approved samples and they
> are assembled or installed to minimize contrast.

2.07 [ALUMINUM FINISHES]{.underline}

DELETE THIS ARTICLE IF NOT APPLICABLE. COORDINATE SELECTION WITH
STRUCTURAL ENGINEER AND FABRICATORS.

A. Finish designations prefixed by AA conform to the system established
by the Aluminum Association for designation aluminum finishes.

B. Class I, Clear Anodic Finish: AA-M12C22A41 (mechanical finish: non
specular as fabricated; chemical finish: etched, medium matte; anodic
coating: architectural class I, clear coating 0.7 mil or thicker,
complying with AAMA 607.1).

[PART 3 - EXECUTION]{.underline}

3.01 [PREPARATION]{.underline}

> A. Coordinate setting drawings, diagrams, templates, instructions, and
> directions for installing anchorages, such as sleeves, concrete
> inserts, anchor bolts, and miscellaneous items having integral
> anchors, that are to be embedded in concrete as masonry construction.
> Coordinate delivery of such items to Project site.

3.02 [INSTALLATION, GENERAL]{.underline}

> A. Fit exposed connections accurately together to form tight, hairline
> joints.
>
> B. Cutting, Fitting, and Placement: Perform cutting, drilling, and
> fitting required for installing handrails and railings. Set handrails
> and railings accurately in location, alignment, and elevation,
> measured from established lines and levels and free from rack
>
> 1\. Do not weld, cut, or abrade surfaces of handrails and railing
> components that have been coated or finished after fabrication and are
> intended for field connection by mechanical or other means without
> further cutting or fitting.
>
> 2\. Set posts plumb within a tolerance of 1/4 inch in 12 feet (2 mm in
> 1 m).
>
> 3\. Align rails so that variations from level for horizontal members
> and from parallel with rake of steps and ramps for sloping members do
> not exceed 1/4 inch in 12 feet (2 mm in 1 m).
>
> C. Corrosion Protection: Coat concealed surfaces of the following,
> that will be in contact with grout, concrete, masonry, wood, or
> dissimilar metals, with a heavy coat of bituminous paint.
>
> 1\. Aluminum alloys.

D. Adjust handrails and railing systems prior to anchoring to ensure
matching alignment at abutting joints. Space posts at interval indicated
but not less than that required by structural load.

> E. Fastening to In-Place Construction: Use anchorage devices and
> fasteners where necessary for securing handrails and railings systems
> and for properly transferring loads to in-place construction.

3.03 [RAILING CONNECTIONS]{.underline}

> A. Welded Connections: Use fully welded joints for permanently
> connecting railing components by welding. Cope or butt components to
> provide 100 percent contact, or use fittings designed for this
> purpose.

SELECT PARA ABOVE OR 2 PARAS BELOW. USUALLY RETAIN PARA ABOVE UNLESS
TOLERANCES DEVIATE FROM PCI RECOMMENDATIONS. MNL-117 TOLERANCES ARE
LISTED BELOW AS A GUIDE; REVISE TO SUIT PROJECT.

3.04 [ANCHORING POSTS]{.underline}

> A. Anchor posts in concrete by forming or core-drilling holes not less
> than 5 inches (125 mm) deep and 3/4 inch (20 mm) greater than outside
> diameter of post. Clean holes of all loose material, insert post, and
> fill annular space between post and concrete with the following
> anchoring material, mixed and placed to comply with anchoring material
> manufacturer's directions.
>
> B. Nonshrink, nonmetallic grout or anchoring cement.
>
> C. For aluminum railing, attach posts as indicated using fittings
> designed and engineered for this purpose.

3.05 [ANCHORING RAIL ENDS]{.underline}

A. Anchor rail ends into concrete with round flanges connected to rail
ends and anchored into wall construction with Postinstalled anchors and
bolts.

> B. Anchor rail ends to metal surfaces with oval or around flanges.

3.06 [ATTACHING HANDRAILS TO WALLS]{.underline}

A. Attach handrails to wall with wall brackets and end fittings. Provide
bracket with 1-1/2-inch (38-mm) clearance from inside face of handrail
and finished wall surface.

> B. Locate brackets as indicated or, if not indicated, at spacing
> required to support structural loads.

C. Secure wall brackets and wall return fittings to building
construction as follows:

1\. Use type of bracket with predrilled hole for exposed bolt anchorage.

> 2\. For concrete anchorage, use drilled-in expansion shield and either
> concealed hanger bolt or exposed lag bolt, as applicable.
>
> 3\. For steel-framed gypsum board assemblies, fasten brackets directly
> to steel framing or concealed reinforcements using self-tapping screws
> of size and type required to support structural loads.

3.07 [FIELD QUALITY CONTROL]{.underline}

> A. Testing Agency: Contractor will employ and pay a qualified
> independent testing agency to perform field quality-control testing.

3.08 [ADJUSTING AND CLEANING]{.underline}

> A. Clean the following metals by washing thoroughly with clean water
> and soap, followed by rinsing with clean water.

1\. Aluminum.

3.09 [PROTECTION]{.underline}

> A. Protect finishes of railing systems and handrails from damage
> during construction period with temporary protective coverings
> approved by railing manufacturer. Remove protective coverings at the
> time of Substantial Completion.

B. Restore finishes damaged during installation and construction period
so that no evidence remains of correction work. Return items that cannot
be refinished in the field to the shop; make required alterations and
refinish entire unit, or provide new units.

END OF SECTION