SPECIFICATIONS / INSTALLATION


Specifications / Installation - Specifications: Hot Rolled

WINDOWS FROM HOT ROLLED SECTIONS

Material

These windows are made from solid steel sections which have been hot rolled from new billet steel into carefully designed profiles or shapes to form frame assemblies and ventilator assemblies. There are four types of hot rolled steel windows, defined and categorized by the weight per lineal foot of the combined frame and vent members. The categories are: Light Intermediate - 2.0; Standard Intermediate - 3.0; Heavy Intermediate - 3.5; Heavy Custom - 4.2.

Construction

A. Window frame and ventilator sections shall be solid, one-piece sections with welded and dressed corners.

B. Flanges forming the weathering contacts shall be rolled integral with sections to provide close contact with both inside and outside points of closure.

C. Weatherstripped Ventilators.

1. All operable windows shall be provided with weatherstripping, such that when tested in the closed and locked position in accordance with ASTM E-283 before leaving the factory, the air infiltration shall not exceed 0.37 cubic foot per minute per foot of crack length when subjected to a pressure differential across the window of 6.24 pounds per square foot equivalent to a wind velocity of 50 miles per hour.

2. All operable windows shall be provided with weatherstripping, such that when tested in the closed and locked position in accordance with ASTM E331, no water penetrates for 15 minutes when a window is subjected to a rate of flow of 5 gal/hr./sq. ft. with a pressure differential across the window at 2.86 PSF.

D. Non-weatherstripped Ventilators.

1. The metal to metal contacts between non-weatherstripped ventilators and frames shall, when ventilators are closed and locked before leaving the factory, be as follows:

a. In side-hung ventilators it shall be impossible to freely insert (without forcing) a steel feeler gauge 2" wide by 0.020" thick between the inside contact of more than 40% of such contacts.

b. In projected ventilators it shall be impossible to freely insert (without forcing) a steel feeler gauge 2" wide by 0.031" thick between more than 40% of such contacts.

c. The foregoing limits air infiltration to a maximum of 1 cu. ft. per minute per lineal foot of crack length when subjected to a pressure differential across the window of 1.56 pounds per square foot equivalent to a wind velocity of 25 miles per hour.

d. Muntin bars, except where interrupted by ventilators, shall be interlocked and continuous from head to sill and jamb to jamb except that bars in one direction may be discontinuous if they are securely welded at the intersection. Muntin bars shall be coped, tenoned and riveted, or solidly welded to their outer frames.

e. Outside frame members shall be of unequal leg design, to lap masonry by not less than 1/2". To meet special conditions, outside frame members may have equal legs, or equal legs with attached continuous fins.

f. The manufacturer will provide a drip member above all open-out, side-hinged ventilators. Bottom perimeter frame member for projected and side-hinged ventilators shall have weep holes or notches leading to the exterior.

Industrial Windows

Material

Principal members shall be hot rolled new billet steel. These members shall be nominally 1-3/8" in depth, except that members nominally 1-1/4" in depth may be used provided frame and ventilator corners are welded. Muntin bars to be continuous from head to sill and jamb to jamb. Sections shall be nominally 1/8" in thickness. Applied weathering members shall be hot or cold rolled low carbon steel, nominally 0.060" thick.

Maximum Vent Sizes

Industrial Projected and Pivoted Windows Only. The recommended maximum sizes of ventilators shall be 5'0" in width and 2'8" in height, with vertical muntins in ventilators as shown on standard types. Dimensions are taken from center to center of the webs of the fixed bars framing the ventilators.

Construction

Framing members shall be welded or interlocked rigidly at joints with accurate and close fits. Welded joints shall be dressed on weathering contact surfaces and on exposed surfaces of all windows. Glass rebates shall be not less than 5/16" high and provide for inside glazing. Frame design shall provide for mounting insect screens between ventilators and grill.

Ventilators

a. Industrial Projected - Refer to projected windows.

b. Casement Vents - Refer to casement windows.

c. Horizontally Pivoted - Ventilators shall be pivoted nominally 2" above their centers. They shall have locking devices as required by project specifications. Hinges shall be butt or pivot type. Ventilators shall have cam handles, push bars, or chain control devices for individual operation per manufacturer's standard in steel, iron or die cast metal. Chains shall operate on pulleys, guide brackets, or idlers and be provided with slips or cleats to hold ventilators open in any desired position.

Mullions

Refer to Accessories

HOT ROLLED STEEL COMPARISON CHART


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FIXED, PROJECT-IN, PROJECT-OUT, SIDE HUNG-OUT AND SIDE HUNG-IN
PART 1 - GENERAL

Work Included

Furnish and install hot rolled steel windows as shown in the contract drawings. Work shall include but not be limited to steel windows (fixed, project-in, project-out, side hung out or side hung in), closures, trim, anchors and factory applied finishes (if required).

Related Work

A. Glass, glazing, and glazing materials: Section 08800

B. Perimeter caulking and sealing: Section 07900

C. Miscellaneous structural items: Section 05500

Quality Assurance, Performance Requirements

Weather-stripped windows shall meet or exceed the following standards:

Air Infiltration Test

ASTM E283 - Maximum air infiltration 0.37 CFM/FT. of crack length with a pressure differential across the windows of 6.24 PSF (50 MPH).

Water Penetration Test

ASTM E331 - No water penetration for 15 minutes when the window is subjected to a rate of flow of 5 Gal./Hr./Sq.Ft. with a pressure differential of 2.86 PSF (33 MPH)

Submittals

Submit shop drawings showing window and installation details, including anchorage, fastening, and recommended sealing methods. Show dimensioned elevations with opening and window sizes. Upon request, provide test reports for all pertinent standards.



PART 2 - PRODUCTS

Approved Manufacturers

Windows shall be provided by a manufacturer and/or distributor of steel windows whose products meet the Steel Window Institute's performance specifications, as set forth herein or in effect from time to time.

Materials

A. The frame and ventilator sections shall be hot rolled steel.

B. Windows shall be defined by minimum combined weight of the outside frame and ventilator members in lbs per lineal ft.

Delete listings below, not required:

1. Light Intermediate 2.0

2. Standard Intermediate: 3.0

3. Heavy Intermediate: 3.5

4. Heavy Custom: 4.2

C. The frame or ventilator sections shall have a minimum front to back depth dimension as follows:

Delete listings below, not required:

1. Light Intermediate 1"

2. Standard Intermediate: 1-1/4"

3. Heavy Intermediate: 1-5/16"

4. Heavy Custom: 1-1/2"

D. Muntin bars shall be hot-rolled steel.

E. Glazing beads shall be extruded aluminum or steel.

F. Weather-stripping shall be extruded vinyl.

G. Hardware shall be as follows:

Delete listings below, not required:

1. Project-In:

a. Ventilators shall be hung on either steel balance arms or heavy duty steel or stainless steel four-bar hinges located at each jamb.

b. Bronze cam fastener or spring catches located at the centerline of the top rail of the ventilator.

2. Project-Out

a. Ventilators shall be hung on either steel balance arms or heavy duty steel or stainless steel four-bar hinges located at each jamb.

b. Bronze cam fastener located at the centerline of the bottom rail of the ventilator.

3. Side Hung-Out Casement

a. Ventilators shall be hung on either steel, malleable iron or aluminum-bronze hinges with non-ferrous pins and bushings. Hinges shall be close or extension type.

b. Bronze cam fastener located at the centerline of the jamb.

c. Optional bronze or die cast roto operator shall be located on the sill.

4. Side Hung-In Casement

a. Ventilators shall be hung on either steel, malleable iron or aluminum-bronze hinges with non-ferrous pins and bushings. Hinges shall be close or extension type.

b. Bronze cam fastener located at the centerline of the jamb.

5. Insect Screens

a. Insect screen frames shall be formed electro-galvanized steel having a minimum thickness of 0.032", or of formed or extruded aluminum having a minimum thickness of 0.040".

b. Screens shall be rewireable with 18 x 16 mesh cloth of aluminum or fiberglass. The nominal diameter of the cloth shall not be less than 0.011" for aluminum.

Fabrication

A. Fabricate windows in accordance with the approved shop drawings.

B. Frame and ventilator sections shall be solid one-piece sections and corners shall be welded and dressed.

C. Flanges forming the weathering contacts shall be rolled integral with sections to provide close contact with both inside and outside points of contact.

D. Muntin bars shall be interlocked and continuous from head to sill and jamb to jamb except that bars in one direction may be discontinued if they are securely welded at the intersection.

E. All windows shall be designed for inside (or outside) glazing.

F. Hardware shall be as follows:

Delete listings below, not required:

1. Project-In:

a. Furnish two cam fasteners or spring catches for vents exceeding 4'-8" in width.

2. Project-Out

a. Furnish two cam fasteners for vents exceeding 4'-8" in width.

b. If the cam fastener of the ventilator is more than 6'-6" above floor level, hardware designed for pole operation shall be furnished.

3. Side Hung-Out Casement

a. Two hinges per ventilator shall be furnished, except that, for ventilators exceeding 5'-6" in height, three hinges shall be furnished.

b. One cam fastener per ventilator shall be furnished, except that, for ventilators exceeding 5'-6" in height, two-point cam fasteners shall be furnished.

4. Side Hung-In Casement

a. Two hinges per ventilator shall be furnished, except that, for ventilators exceeding 5'-6" in height, three hinges shall be furnished.

b. One cam fastener per ventilator shall be furnished, except that, for ventilators exceeding 5'-6" in height, two-point cam fasteners shall be furnished.

G. Insect Screens

1. Screens with hinged or sliding wickets shall be provided as required.

2. The wire cloth shall be held taut with removable spline.

3. Screens shall be removable from the window, held in place by clips.

H. After assembly, windows shall be pretreated, epoxy or zinc coated, followed by manufacturer's standard finish.



PART 3 - EXECUTION

Inspection

A. Window openings shall conform with details and dimensions shown on the approved shop drawings.

B. Conditions which may adversely affect the window installation must be corrected by the General Contractor prior to installation.

Installation

A. Windows specified under this section shall be installed by experienced personnel.

B. Install windows in strict accordance with the approved shop drawings.

C. Set windows plumb, level and true to line, without warp or rack of frames or ventilators.

D. Anchor units securely to surrounding construction with approved fasteners.

E. The exterior joints between the windows, trim and mullions shall be properly sealed watertight with an approved sealant and neatly pointed.

F. Attach ventilator hardware, as required, and adjust ventilators to operate smoothly free from twist and to be weathertight when closed and latched.

G. Any abraded surface of the window finish shall be cleaned and touched up with air dry paint, as approved and furnished by the window manufacturer, in a color to match factory applied finish.

Cleaning

A. The General Contractor shall be responsible for protecting the windows and related materials during storage on the job and during and after installation.

B. Window installer shall leave the window surfaces clean after installation.

C. Any protection necessary due to the cleaning of materials adjacent to the windows shall be the responsibility of the General Contractor.

FIRE RATED - FIXED, PROJECT-IN, PROJECT-OUT, SIDE HUNG-OUT AND SIDE HUNG-IN

PART 1 - GENERAL

Work Included

Furnish and install hot rolled steel fire rated windows as shown in the contract drawings. Work shall include but not be limited to steel windows (fixed, project-in, project-out, side hung-out or side hung-in), closures, trim, anchors and factory applied finishes (if required).

Related Work

A. Glass, glazing, and glazing materials: Section 088000

B. Perimeter caulking and sealing: Section 07900

C. Miscellaneous structural items: Section 05500

Quality Assurance, Performance Requirements

Weather-stripped windows shall meet or exceed the following standards:

Air Infiltration Test

ASTM E283 - Maximum air infiltration 0.37 CFM/FT. of crack length with a pressure differential across the windows of 6.24 PSF (50 MPH).

Water Penetration Test

ASTM E331 - No water penetration for 15 minutes when the window is subjected to a rate of flow of 5 Gal./Hr./Sq.Ft. with a pressure differential of 2.86 PSF (33 MPH)

Labeled Fire Rating

A. NFPA 257 - Standard on Fire Test for Window and Glass Block Assemblies - 45 minute rating.

B. NFPA 80 - Standard for Fire Doors and Fire Windows

1. Maximum size opening 84 square feet with neither dimension exceeding 12 feet unless otherwise tested. When multiple units are installed, the distance between unprotected vertical steel mullions shall not exceed 6 feet unless otherwise tested.

2. Maximum exposed glass area for 1/4" labeled wire glass is 1,296 square inches with no dimension exceeding 54 inches unless otherwise tested.

3. Each ventilator must be equipped with a self-closing device, which will permit the ventilator to close in case of fire.

C. Each window must bear a 3/4 hour fire rating label.

Submittals

Submit shop drawings showing window and installation details, including anchorage, fastening, and recommended sealing methods. Show dimensioned elevations with opening and window sizes. Upon requests, provide test reports for all pertinent standards.



PART 2 - PRODUCTS

Approved Manufacturers

Windows shall be provided by a manufacturer and/or distributor of steel windows whose products meet the Steel Window Institute's performance specifications, as set forth herein or in effect from time to time.

Materials

A. The frame and ventilator sections shall be hot rolled steel.

B. Windows shall be defined by minimum combined weight of the outside frame and ventilator members in lbs per lineal ft.

Delete listings below, not required:

1. Light Intermediate 2.0

2. Standard Intermediate: 3.0

3. Heavy Intermediate: 3.5

4. Heavy Custom: 4.2

C. The frame or ventilator sections shall have a minimum front to back depth dimension as follows:

Delete listings below, not required:

1. Light Intermediate 1"

2. Standard Intermediate: 1-1/4"

3. Heavy Intermediate: 1-5/16"

4. Heavy Custom: 1-1/2"

D. Muntin bars shall be hot rolled steel.

E. Glazing beads shall be extruded aluminum or steel.

F. Weather-stripping shall be extruded vinyl.

G. Hardware for self-closing ventilators.

Delete listings below, not required:

1. Projected ventilators shall be hung on heavy-duty steel side arms equipped with brass friction shoes and fusible link releases.

2. Casement ventilators shall be hung on two listed spring hinges and fitted with a stainless steel friction adjuster with a fusible link release.

3. Ventilators shall be fitted with steel expansion lugs.

4. Provide bronze spring catches attached with corrosion-resistant steel screws for all ventilators.

H. Insect Screens

1. Insect screen frames shall be formed electro-galvanized steel having a minimum thickness of 0.032" , or of formed or extruded aluminum having a minimum thickness of 0.040".

2. Screens shall be rewireable with 18 x 16 mesh cloth of aluminum or fiberglass. The nominal diameter of the cloth shall not be less than 0.011" for aluminum.

Fabrication

A. Fabricate windows in accordance with the approved shop drawings.

B. Frame and ventilator sections shall be solid one-piece sections and corners shall be welded and dressed.

C. Flanges forming the weathering contacts shall be rolled integral with sections to provide close contact with both inside and outside points of contact.

D. Muntin bars shall be interlocked and continuous from head to sill and jamb to jamb except that bars in one direction may be discontinued if they are securely welded at the intersection.

E. All windows shall be designed for inside (or outside) glazing.

F. Operable Hardware

Delete listings below, not required:

1. Projected ventilators shall be balanced on heavy steel side arms securely pivoted to the vent and frame at each jamb. Friction shall be maintained by means of two brass shoes sliding in the channel of the frame section controlled by compression springs enclosed in tubular housings. This housing is fitted with fusible link release which will release the friction and permit the ventilator to close in the event of fire.

2. Casement ventilators shall be hung on two UL listed spring hinges securely fastened to the vent and frame. Friction shall be maintained by means of a friction adjuster or other hold open device located at the head of the ventilator. This friction adjuster shall be equipped with a fusible link release, which will release the friction and permit the ventilator to close in the event of fire. The opening of each vent shall be limited to 70 degrees maximum.

3. Provide one bronze spring catch at the centerline of ventilator fastener bar.

4. Provide two sets of fire lock lugs on ventilator fastener bar and one set on opposite bar.

G. Insect Screens

1. Screens with hinged or sliding wickets shall be provided as required.

2. The wire cloth shall be held taut with removable spline.

3. Screens shall be removable from the window, held in place by clips.

H. After assembly, windows shall be pretreated, epoxy or zinc coated, followed by manufacturer's standard finish.



PART 3 - EXECUTION

Inspection

A. Window openings shall conform with details and dimensions shown on the approved shop drawings.

B. Conditions which may adversely affect the window installation must be corrected by the General Contractor prior to installation.

Installation

A. Windows specified under this section shall be installed by experienced personnel.

B. Install windows in strict accordance with the approved shop drawings.

C. Set windows plumb, level and true to line, without warp or rack of frames or ventilators.

D. Anchor units securely to surrounding construction with approved fasteners.

E. The exterior joints between the windows, trim and mullions shall be properly sealed watertight with an approved sealant and neatly pointed.

F. Attach ventilator hardware, as required, and adjust ventilators to operate smoothly free from twist and to be weathertight when closed and latched.

G. Any abraded surface of the window finish shall be cleaned and touched up with air dry paint, as approved and furnished by the window manufacturer, in a color to match factory applied finish.

Cleaning

A. The General Contractor shall be responsible for protecting the windows and related materials during storage on the job and during and after installation.

B. Window installer shall leave the window surfaces clean after installation.

C. Any protection necessary due to the cleaning of materials adjacent to the windows shall be the responsibility of the General Contractor.

INDUSTRIAL - FIXED, PROJECT-IN, PROJECT-OUT, SIDE HUNG-OUT AND SIDE HUNG-IN

PART 1 - GENERAL

Work Included

Furnish and install hot rolled steel windows as shown in the contract drawings. Work shall include but not be limited to steel windows (fixed, project-in, project-out, side hung-out, side hung-in or horizontally pivoted), closures, trim, anchors and factory applied finishes (if required).

Related Work

A. Glass, glazing, and glazing materials: Section 08800

B. Perimeter caulking and sealing: Section 07900

C. Miscellaneous structural items: Section 05500

Quality Assurance, Performance Requirements

Unweather-stripped windows shall meet or exceed the following standard:

Air Infiltration Test

ASTM E283 - Maximum air infiltration 1.00 CFM/FT. of crack length with a pressure differential across the windows of 1.56 PSF (25 MPH).

Submittals

Submit shop drawings showing window and installation details, including anchorage, fastening, and recommended sealing methods. Show dimensioned elevations with opening and window sizes. Upon request, provide test reports for all pertinent standards.



PART 2 - PRODUCTS

Approved Manufacturers

Windows shall be provided by a manufacturer and/or distributor of steel windows whose products meet the Steel Window Institute's performance specifications, as set forth herein or in effect from time to time.

Materials

A. The frame and ventilator sections shall be hot rolled steel.

B. The frame or ventilator sections shall have a minimum thickness of 1/8" and a front to back depth dimension of 1-3/8".

C. Muntin bars are to be hot rolled steel.

D. Hardware shall be as follows:

Delete listings below, not required:

1. Project-In:

a. Ventilators shall be hung on heavy-duty steel balance arms located at each jamb. Brass or nylon friction shoes shall be connected to a compression spring assembly to provide proper hold open positions.

b. Steel or malleable spring catches located at the centerline of the top rail of the ventilator.

2. Project-Out

a. Ventilators shall be hung on heavy-duty steel balance arms located at each jamb. Brass or nylon friction shoes shall be connected to a compression spring assembly to provide proper hold open positions.

b. Steel cam fasteners located at the centerline of the top rail of the ventilator.

3. Side Hung-Out Casement

a. Ventilators shall be hung on steel ballbearing hinges.

b. Bronze cam fastener located at the centerline of the jamb.

c. Die cast roto operator shall be located on the sill.

4. Side Hung-In Casement

a. Ventilators shall be hung on steel ballbearing hinges.

b. Bronze cam fastener located at the centerline of the jamb.

c. Stainless steel friction adjuster shall be located on the head.

E. Insect Screens

1. Insect screen frames shall be extruded aluminum.

2. Screens shall be rewireable with 14 x 18 mesh cloth of fiberglass. The nominal diameter of the cloth shall not be less than 0.011".

Fabrication

A. Fabricate windows in accordance with the approved shop drawings.

B. Frame and ventilator sections shall be solid one piece sections and corners shall be either solidly welded and dressed or mortised and tenoned and riveted.

C. Flanges forming the weathering contacts shall be rolled integral with sections to provide close contact with both inside and outside points of contact.

D. Muntin bars shall be interlocked and continuous from head to sill and jamb to jamb and securely welded at the intersection.

E. All windows shall be designed for inside putty glazing. Outside putty glazing is optional.

F. Hardware shall be as follows:

1. Project-In:

a. Furnish two spring catches for vents exceeding 4'-8" in width.

2. Project-Out

a. Furnish two cam fasteners for vents exceeding 4'-8" in width.

3. Side Hung-Out Casement

a. Two hinges per ventilator shall be furnished, except that, for ventilators exceeding 5'-6" in height, three hinges shall be furnished.

b. One cam fastener per ventilator shall be furnished, except that, for ventilators exceeding 4'-0" in height, two-point cam fasteners shall be furnished.

4. Side Hung-In Casement

a. Two hinges per ventilator shall be furnished, except that, for ventilators exceeding 5'-6" in height, three hinges shall be furnished

b. One cam fastener per ventilator shall be furnished, except that, for ventilators exceeding 4'-0" in height, two-point cam fasteners shall be furnished.

G. Insect Screens

1. Screens with hinged or sliding wickets shall be provided as required.

2. The wire cloth shall be held taut with removable spline.

3. Screens shall be removable from the window, held in place by clips.

H. After assembly, windows shall receive a primer finish. Hot-dipped galvanizing or the manufacturer's standard paint finish is optional.



PART 3 - EXECUTION

Inspection

A. Window openings shall conform with details and dimensions shown on the approved shop drawings.

B. Conditions which may adversely affect the window installation must be corrected by the General Contractor prior to installation.

Installation

A. Windows specified under this section shall be installed by experienced personnel.

B. Install windows in strict accordance with the approved shop drawings.

C. Set windows plumb, level and true to line, without warp or rack of frames or ventilators.

D. Anchor units securely to surrounding construction with approved fasteners.

E. The exterior joints between the windows, trim and mullions shall be properly sealed watertight with an approved sealant and neatly pointed.

F. Attach ventilator hardware, as required, and adjust ventilators to operate smoothly free from twist and to be weathertight when closed and latched.

G. Any abraded surface of the window finish shall be cleaned and touched up with air dry paint, as approved and furnished by the window manufacturer, in a color to match factory applied finish.

Cleaning

A. The General Contractor shall be responsible for protecting the windows and related materials during storage on the job and during and after installation.

B. Window installer shall leave the window surfaces clean after installation.

C. Any protection necessary due to the cleaning of materials adjacent to the windows shall be the responsibility of the General Contractor.

DOORS - SWING-IN AND SWING-OUT

PART 1 - GENERAL

Work Included

Furnish and install hot rolled steel doors as shown in the contract drawings. Work shall include but not be limited to steel doors (swing-out and swing-in), closures, trim, anchors and factory applied finishes (if required).

Related Work

A. Glass, glazing, and glazing materials: Section 08800

B. Perimeter caulking and sealing: Section 07900

C. Miscellaneous structural items: Section 05500

Submittals

Submit shop drawings showing door and installation details, including anchorage, fastening, and recommended sealing methods. Show dimensioned elevations with opening and door sizes. Upon request, provide test reports for all pertinent standards.



PART 2 - PRODUCTS

Approved Manufacturers

Windows shall be provided by a manufacturer and/or distributor of steel doors whose products meet the Steel Window Institute's performance specifications, as set forth herein or in effect from time to time.

Materials

A. The door frame and ventilator sections shall be hot rolled steel.

B. Doors shall be defined by minimum combined weight of the outside door frame and ventilator members in lbs per lineal ft.

Delete listings below, not required:

1. Standard Intermediate: 3.0

2. Heavy Intermediate: 3.5

3. Heavy Custom: 4.2

C. The door frame or ventilator sections shall have a minimum front to back depth dimension as follows:

Delete listings below, not required:

1. Light Intermediate 1"

2. Standard Intermediate: 1-1/4"

3. Heavy Intermediate: 1-5/16"

4. Heavy Custom: 1-1/2"

A. Muntin bars shall be hot rolled steel.

B. Glazing beads shall be extruded aluminum or steel.

C. Weather-stripping shall be extruded vinyl or EPDM.

Fabrication

A. Fabricate doors in accordance with the approved shop drawings.

B. Door frame and ventilator sections shall be solid one-piece sections and corners shall be welded and dressed.

C. Flanges forming the weathering contacts shall be rolled integral with sections to provide close contact with both inside and outside points of contact.

D. Muntin bars shall be interlocked and continuous from head to sill and jamb to jamb except that bars in one direction may be discontinued if they are securely welded at the intersection.

E. All doors shall be designed for inside (or outside) glazing.

F. After assembly, doors shall be pretreated, epoxy or zinc coated, followed by manufacturer's standard finish.

Hardware

A. Each leaf shall be hung on three or four close type pivots or butt hinges or the manufacturer's standard design.

B. Provide a latch with operable lever handles or knobs from both the inside and outside. Exterior key cylinder with interior thumb turn can be provided when specified.

C. Furnish top and bottom bolts on the inactive leaf of a double-folding door.

D. Furnish kick panels of at least 12 gauge steel at the bottom of each leaf.

E. Locking handles, lever handles, knobs and exposed top and bottom bolts shall be the manufacturer's standard design. They shall be attached with brass or other corrosive-resistant screws.



PART 3 - EXECUTION

Inspection

A. Door openings shall conform with details and dimensions shown on the approved shop drawings.

B. Conditions which may adversely affect the door installation must be corrected by the General Contractor prior to installation.

Installation

A. Windows specified under this section shall be installed by experienced personnel.

B. Install doors in strict accordance with the approved shop drawings.

C. Set doors plumb, level and true to line, without warp or rack of door frames or ventilators.

D. Anchor units securely to surrounding construction with approved fasteners.

E. The exterior joints between the doors, trim and mullions shall be properly sealed watertight with an approved sealant and neatly pointed.

F. Attach ventilator hardware, as required, and adjust ventilators to operate smoothly free from twist and to be weathertight then closed and latched.

G. Any abraded surface of the door finish shall be cleaned and touched up with air dry paint, as approved and furnished by the door manufacturer, in a color to match factory applied finish.

Cleaning

A. The General Contractor shall be responsible for protecting the doors and related materials during storage on the job and during and after installation.

B. Door installer shall leave the door surfaces clean after installation.

C. Any protection necessary due to the cleaning of materials adjacent to the doors shall be the responsibility of the General Contractor.