Attachment 1 - Specifications.pdf

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Guatemala - CMR - Back Patio Awning Construction
Solicitation number
19GT5025Q0013
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BACKYARD AWNING SPECIFICATIONS

CODES AND STANDARDS

The following codes and standards, including specifications referenced within, shall apply to the design, construction quality control and safety of all work performed in this project.

AGIES 2018 - Guatemalan Structural Safety Regulations. NSE-1, NSE-2, NSE-3, NSE-

7.1, NSE-7.4 and NSE-7.5 (updated)

CONRED - Guatemalan Coordinating Agency for Disaster Reduction. NRD-1 and

NRD-3 (see AGIES 2018 updated).

AISC - American Institute of Steel Construction, seventh edition.

ACI - American Concrete Institute – ACI 318-14 Building Code Requirements for

Structural Concrete

ASCE - American Society of Civil Engineers – ASCE 7-10 minimum design loads for building and other structures.

IBC - International Building Code, 2024 version.

NEC - National Electric Codes, 2014 edition.

AWS – American Welding Society, 2015 edition.

DRAWING NOTES

1. The structural drawings and specifications shall complement each other and shall be considered an integral part of the structural requirements for this project.

2. These notes apply to contractors, subcontractors, manufacturers, suppliers, fabricators, erectors, and all personnel engaged in the execution of work indicated in these drawings.

3. Do not scale drawings.

4. All dimensions without a decimal are in millimeters (mm), all dimensions with a decimal are in meters (m) U.N.O., all dimensions indicated with ( ' ) are in feet and all dimensions indicated with ( " ) are in inches.

5. All dimensions and elevations indicated on the structural drawings shall be verified by the contractor and shall be coordinated with those indicated on the architectural drawings, report all discrepancies to the contracting officer for resolution before proceeding.

6. All elevations and sections are referenced from architectural drawings.

7. Details, sections and notes shown on these drawings are intended to be typical and shall apply to similar conditions elsewhere unless otherwise shown or noted.

8. Coordinate with all drawings for pertinent information related to the structural work. any changes to the structural systems shall be redesigned by a professional engineer at no cost to the government or a/e and submitted to the contracting officer for review. submittal shall be acknowledged in writing before beginning construction.

9. Refer to the architectural, electrical, plumbing, and civil drawings for the size and location of all openings, sleeves, chases, conduits, depressed areas, floor finishes, curbs, fills, embedded items, masonry details and miscellaneous steel before detailing structural members or placing concrete.

OCCUPATIONAL SAFETY

1. The contractor is responsible for all means and methods of construction throughout the project duration. he shall provide adequate bracing, shoring, and institute measures necessary to protect all work - both new and existing, form damage, breakage, settlement or collapse that may result from the construction activity.

2. Implementing job site safety and construction procedures are solely the responsibility of the contractor.

3. The contractor shall comply with US Army Corps of Engineers (ACOE) safety and health requirements manual (EM 385-1-1).

STRUCTURAL DESIGN LOADS AND SEISMIC PARAMETERS

1. gravity - superimposed dead loads

METALDECK Slab (0.08m) 39.36 psf

2. gravity - roof live loads

Flat Roofs 20.45 psf

3. seismic design coefficient (AGIES)

Seismicity Index 4.1

Scr 1.43

S1r 0.88

Type of work Ordinary

Seismic for structural design Basic

Site class D

Site coefficient Fa 1

Site coefficient Fv 1.7

DEMOLITION

1. Verify all existing field conditions that may affect the installation of the foundation system prior to starting work. Locate and protect all utilities which may be affected by the construction process.

2. When removing a certain portion of the paver patio, if necessary, use a paver extractor tool, to ensure that the surrounding blocks won't get damaged.

EXCAVATION AND BACKFILL

1. Excavation and subgrade preparation

The excavation process involves removing any existing material, such as topsoil, rocks, vegetation, debris or any structures that may interfere with the footing from the subgrade area.

Verify in field existing footing elevations and utilities, caution to be taken so as not to undermine existing foundations or cause other adverse impacts when excavating and installing new foundations.

The grading process must ensure a correct depth and a leveled surface for all the trenches with the use of batter boards.

The subgrade material shall be compacted uniformly by using a rammer compactor.

The moisture content of the subgrade material before compaction shall be within 2%, when necessary, the subgrade before compaction shall be allowed to dry or be watered to bring moisture content within 2%, the material shall be worked as to have a uniform moisture content through the entire layer.

The surface of the finished subgrade shall be neat and workmanlike and have the required form, elevation, levels, grades and cross section.

2. Compaction and filling of trenches process:

Preparation of the trench: it is necessary to make sure that the trench is free of debris, water or any other material that could affect the quality of the filling.

Selection of filling material: the material to be used for filling should constitute granular type material in their natural state free of vegetable materials, garbage, clay clouds, with a maximum particular size of 20mm and a CBR of 60%

Placement of the filler material: the material should be placed in uniform layers of a maximum of 0.20m and a minimum of 0.10m, each layer should be uniformly compacted before adding the next layer.

Fill compaction: a manual method will be used by means of a 15.5 lb. steel compaction tamper; the filling must reach a degree of compaction of 90%.

3. Do not place utility lines through or below foundations without approval by project director or contracting officer representative (COR).

STRUCTURAL CONCRETE AND PAVER BASE

1. Cast-in-place concrete work shall conform to the requirements of ACI 318-14, specifications for structural concrete for building and the ACI manual of standard practice.

2. All concrete should be normal weight.

3. Concrete shall have a minimum compressive strength at 28 days of 30 MPa without entrained air for all concrete unless specifically noted otherwise.

4. All reinforcing steel shall be new deformed billet steel conforming to ASTM

A615 / A615m-14, grade 60 (420 MPa), or ASTM a706 / a706m-14, grade 60 (420

MPa), U.N.O.

5. Where bar lengths are indicated on the drawings, the length of any hook, if required, is not included. use standard 135-degree bar hook unless noted otherwise.

6. In place bending of reinforcing bars is not permitted.

7. Welding of reinforcing steel is not permitted, unless noted otherwise.

8. Provide welded wire fabric in all topping slabs, unless noted otherwise.

9. Review all drawings for size and location of all embedded items, sleeves, slab depressions, openings, etc. required by other trades. reconcile their exact sizes and locations before proceeding with the work. all items shall be furnished and installed prior to placement of concrete, secure the approval of the contracting officer prior to placing openings not shown on the structural drawings.

10. Core drilling foundations, columns, beams or slabs is not permitted unless approved by the project director (COR).

11. Where cold joints are required, cut the slab with a concrete cutter, clean the surface and place reinforcing rods between the first portion of the slab and the new pour.

12. Provide necessary camber to achieve a flat and level floor within ACI tolerances to the elevations indicated on the plan drawings.

13. Comply with the architectural drawings for location and extend of special finishes or treatments to exposed concrete.

14. Reinforcing bar lap splices and anchorage lengths shall conform with TABLE 1, "minimum lap splice and anchorage dimension table"

Table 1 - minimum lap splice and anchorage dimension table (mm)

Use this specification for a615m grade 420 or a706m grade 420-uncoated reinforcing when: clear spacing of bars being developed or spliced is not less than bar diameter (db); clear cover is not less than bar diameter (db); and stirrups or ties throughout development length (Ld) is not less than the code minimum or

Clear spacing of bars being developed or spliced is not less than two bar diameters

(2db); clear cover is not less than bar diameter (db)

(30 MPa concrete) bar size anchor (mm) overlap (mm)

#2 350 450

#3 350 450

#4 500 650

#5 600 800

Notes:

Top bars shall be defined as beam and slab horizontal reinforcement so placed that more than 300mm of fresh concrete is cast in the member below the top reinforcement. horizontal reinforcing in walls shall be considered top bars.

Table 2 - typical reinforcing bar clearance table

Location Specified concrete cover (mm)

Foundations 70

Columns 30

Beams lateral 20

Beams vertical 40

Reinforcing rod 25

15. The following testing for quality control of concrete shall be performed to foundations:

ASTM C31 making and curing concrete specimens in the field.

ASTM C39 concrete cylinder compression testing.

ASTM C172 standard practice for sampling freshly mixed concrete.

ASTM C143 standard test method for slump of hydraulic cement.

ASTM C138 standard test method for density.

ASTM C231 standard test method for air content of freshly mixed concrete by pressure method.

ASTM C1064 standard test method for temperature of freshly mixed hydraulic-cement concrete.

16. Mix design of concrete:

concrete shall have a minimum compressive strength at 28 days of 30 MPa.

concrete slump reading for foundation must be 1 to 2 inches.

17. The paver-base shall be made of PEGASO BASE MORTAR or similar, placed over a polyethylene underlay film of 0.06 mm to provide a moisture barrier.

FACILITY STORM DRAINAGE

1. Refer the following specifications to stormwater drainage plan SAN-01

2. The trench shall be excavated at the outlet and proceeding toward the upper end, true to line and grade as shown on the plans. during excavation, material suitable for backfilling shall be piled in an orderly manner a sufficient distance from the banks of the trench to avoid over-loading and to prevent surface water from flowing into trenches or other excavations, and to maintain the flow of water in natural water courses on or adjacent to the site.

2. The sewer pipes and accessories must meet PVC SDR 32.5 standard.

3. Sewer drain boxes must be precast concrete sewer box from CIFA or similar with the following dimensions: 0.48 m x 0.48 m x 0.50 m.

4. The flexible elbow/connector must be Lightweight, durable and made up of

Polypropylene, use FLEX Drain 4 in. x 21 in. from AMERIMAX or similar.

5. Use supports and anchors for piping from HILTI or similar.

6. All hand placed backfill shall be deposited and spread with tool in uniform layers not more than 8 in. in thickness on each side of the pipe and for the full width of the trench where above the pipe.

7. Uncompacted earth backfill material which is to be placed above compacted soil shall be free of debris, detritus, boulders and roots more than 2 in. in diameter.

STORMWATER MANAGEMENT WELL HEAD BASE

1. Use Grade 60 rebar, with a yield strength of 60,000 psi.

2. All reinforcing steel shall be new deformed billet steel conforming to ASTM

A615 / A615m-14, grade 60 (420 MPa), or ASTM a706 / a706m-14, grade 60 (420

MPa), U.N.O.

3. Where bar lengths are indicated on the drawings, the length of any hook, if required, is not included. use standard 135-degree bar hook unless noted otherwise.

4. In place bending of reinforcing bars is not permitted.

5. Welding of reinforcing steel is not permitted, unless noted otherwise.

6. Reinforcing bar lap splices and anchorage lengths shall conform with TABLE 1, "minimum lap splice and anchorage dimension table" STRUCTURAL CONCRETE

AND PAVER BASE SECTION.

7. Reinforcing bar clearance shall conform with TABLE 2, " typical reinforcing bar clearance table " STRUCTURAL CONCRETE AND PAVER BASE SECTION.

8. The sewer pipes and accessories must meet PVC SDR 32.5 standard.

9. Use ready to use bags of High-strength 4000 psi concrete from MIXTO LISTO or similar.

EXTERIOR PAVER

1. Use exterior gray unit paver from PISOS LA CASA BLANCA brand called Adoquín serie Antigua 0.20 m x 0.20 m, to complete the removed outdoor blocks after the demolition process.

2. To adhere blocks to the mortar base slab, use CAPA GRUESA mortar mix from

CEMIX or similar

3. To fill the paver joints, use tile grout from PEGASO or similar in pearl gray color.

STRUCTURAL METAL FRAMING

1. Structural steel specifications

ASTM A992 g50 fy= 345 MPa - beams and columns

ASTM A653 (metal deck galvanized) - fy = 255 MPa steel deck

ASTM C1064 fy=490 MPa - welded mesh

ASTM A36m (fy=250 MPa) - rolled steel plates, channels, angles, bars and rods as noted on the drawings.

2. Welding electrodes shall be e7018 low hydrogen (475 MPa). U.N.O.

3. For welding symbols with no length dimension given, the welding shall be continuous between abrupt changes in direction.

4. Bolts and bolted connections shall conform to the requirements of joints using

ASTM A325m bolts, as approved by the research council on structural connections.

use bearing-type bolts with threads excluded from the shear plane.

5. Anchor bolts shall conform to ASTM F1554, grade 36 as specified on the drawings.

6. All bolts shall be tightened to a "snug-tight" condition, unless noted otherwise.

7. Typical beam shear connections not detailed on the drawings shall be detailed with AISC standard bolted double angle type connections, using a minimum of two (2) a325m bolts, connection shall be capable of resisting maximum beam end reaction.

8. A Mill Test Certificate (MTC) is required for quality assurance purposes and traceability of the steel goods; the material test report must include the following information:

Name of manufacturer.

Production date.

Location where the material was produced.

Basic information about the material: type, grade, heat number, lot number, dimension and specifications.

Chemical composition including information about the list and percentages of various elements present in the material.

Mechanical properties about the material such as: tensile strength, yield strength, elongation, hardness, and other relevant characteristics.

Details about the heat treatment processes.

Non-destructive testing and inspections shall be performed to the metal structure during the construction process.

Compliance with standards indicating that the material complies with standards such as ASTM (American society for testing and materials) or en

(European norms).

Authorized signatures and stamps to ensure the authenticity of the MTC.

9. Structural welding requirements:

steel erector is responsible for all metal sections and connections, which must satisfy everything specified in drawings.

welding to be performed per AWS D1.1 / D1.1M standard.

to ensure that welding personnel meet the performance qualifications, welders must hold a structural welding welder certificate from an accredited test facility by the American welding society in Guatemala.

visual, ultrasonic and magnetic particle tests must be conducted to the metal structure on-site, by an American welding society's accredited test-facility in Guatemala, before proceeding to pour slabs concrete.

STEEL COATINGS

1. Surface preparation for coating: to ensure good coating adhesion, it is essential that the surface to be coated is rendered free of dirt, dust and debris that might affect performance.

2. The protective paint system consists of one shop coating of primer undercoat and two finish coats to be applied on site; before final coatings apply a touch up of primer undercoat, let an overnight dry between coats.

3. The product for primer should be direct-to-metal KEM from SHERWIN

WILLIAMS or similar in black color and must be applied directly onto the cleaned steel surface to provide a corrosion inhibition to the metal surface.

4. The product for the final coats should be KEM 4000 acrylic alkyd enamel from

SHERWIN WILLIAMS or similar in gloss black.

5. The product for reduction should be industrial solvent r1k4 from SHERWIN

WILLIAMS or similar, the product for cleaning should be thinner 128 r7k128 from

SHERWIN WILLIAMS or similar, for both primer and finish coats products.

6. The preferred method of application is by roller, for coating awkward corners and bolt heads where the method is not suitable, brush application should be used.

CAST DECKS AND UNDERLAYMENT

1. Cast-in-place concrete work shall conform to the requirements of ACI 318-14, specifications for structural concrete for building and the ACI manual of standard practice.

2. All concrete should be normal weight.

3. Concrete shall have a minimum compressive strength at 28 days of 30 MPa

4. Slab Reinforcement Welded Wire mesh shall be 6”x 6” W 3/3

5. Use Grade 60 rebar, with a yield strength of 60,000 psi.

6. The following testing for quality control of concrete shall be performed to metal decking:

• ASTM C31 making and curing concrete specimens in the field.

• ASTM C39 concrete cylinder compression testing.

• ASTM C172 standard practice for sampling freshly mixed concrete.

• ASTM C143 standard test method for slump of hydraulic cement.

• ASTM C138 standard test method for density.

• ASTM C231 standard test method for air content of freshly mixed concrete by pressure method.

• ASTM C1064 standard test method for temperature of freshly mixed hydraulic-cement concrete.

7. Mix design of concrete:

• concrete shall have a minimum compressive strength at 28 days of 30 MPa.

• concrete slump reading for slab must be 2 to 4 inches.

8. The Cover plate shall be made of Stainless Steel 304 sheet.

9. The sealant for the cover joint must be Sikaflex Horizontal Joint Elastic

Polyurethane Sealant in Gray color or similar.

ELECTRICAL

1. Electric Metallic Tube (EMT) Conduit shall be used in all installations including piping, connectors, electrical junction boxes and covers, utility boxes and covers, octagon boxes and covers.

2. Rigid Metal Conduit shall be used only for the feeder.

3. Main Electrical Junction Box 12 in x 8 in x 4 in must be waterproof

4. Use only SQUARE D circuits breakers in the Main Breaker Box.

5. Use only 12 Gauge THHN wire for ALL circuits. Color codes: use white wire for the neutral, green wire for the ground, black for hot wires, and red for secondary live wires.

6. The lamps inside the skylight must be a 50 watts outdoor led flood light, use

Sylvania or similar flood lamp or similar with the following specifications:

Luminous flux 5000 lm

Total power consumption 50 watts

Cool white light color

Color temperature 4000k

Beam angle 110°

Voltage 120 v ac

Outdoor use

IP rating ip65

7. The exterior wall lamps must be 100 watts PORTLAND or similar black outdoor hardwired lantern, use aspen model 554m-bk lamp from z-lite or similar with the following specifications:

Interchangeable bulb

Lantern sconce type

Black color

Clear glass

Square shape

8. Use flexible led strip fully covered with waterproof silicone with a self-adhesive back, use NOVOSTELLA brand or similar with the following specifications:

Dimmable with different brightness levels

Tunable color temperatures from 3000k to 6500k

Wattage 80 watts

Input voltage: 110 v ac - 24 v dc (50 / 60 hz)

Outdoor use

Beam angle: 120°

Cuttable to different lengths

8. All led strips lights in ceiling must be embedded in the ceiling board, use a

BESSETO brand or similar recessed plaster-in led aluminum casing with a white milky diffuser and end caps. this channel should be designed to be completely seamless once installed into drywall, with no aluminum frames showing, the final effect is a clean beam of light that appears to come from a gap in the plaster. the channel acts as a led strip housing to protect the strip and reduces glare and softens light output.

9. Use EAGLE 20 Amp 125 Volt GFCI Duplex outlet 4-6mA in white color for ALL

Receptacles.

10. Include an EAGLE Duplex Outlet Plastic Weatherproof cover IP55 for ALL

Receptacles.

PYRAMIDAL STAINLESS STEEL-FRAMED SKYLIGHT

1. All the Main Structure of the Skylight, the framing and supports shall be

Stainless Steel 304 using the shapes indicated on drawings.

2. Use 1/8 in. Dia. x 14 in. E308L-16 Stainless Steel Welding Electrode for Stainless

Steel joints.

3. Use ONLY Stainless Steel screws as indicated on drawings.

4. Use Stainless Steel HILTI anchors or similar on supports.

5. Use 3M Double Sided Mounting Tape or similar for mounting glass over the frame.

6. Use Galvanized Metallic Sheet 1/16” for the skylight curb flashing, sealed with

Sikaflex or similar crack sealant.

7. The skylight glass shall be Laminated Gray Glass of 8mm.

CEMENTITIOUS FURRING BOARD

1. All exterior walls and wall furring should be made of USG DUROCK or similar cement board system; the cement board size must be: 1/2 in. x 4 ft. x 8 ft.

2. The wallboard framing should be made of galvanized 26-gauge steel or heavier tracks and studs; the tracks should be nailed with hot-dipped galvanized concrete nails of 1 1/4" spaced @ 8 in. o.c.; the maximum distance between studs is 16 in.

o.c., use #7 x 1/2" Phillips truss head sharp point lath screws to join tracks and studs.

3. Use #6 x 1 1/4" Phillips bugle head self-drilling drywall screws to attach cement boards to tracks and studs, use galvanized steel drywall corner bead of 1 in. on corners, attached with #6 x 1 1/4" screws.

4. Use USG DUROCK or similar brand 4in. exterior tape for join reinforcement of

DUROCK cement board.

5. Use USG DUROCK or similar basecoat flexible cement for joints treatment in

Durock system, neat finished edges, for embedding fiberglass mesh and as a bonding for a cementitious sheathing, as a coating of 2.5mm maximum, over the entire surface and joints treatment between boards of Durock brand cement board.

DENSGLASS BOARD WATERPROOF CEILING

1. All exterior drywall ceiling should be made with Georgia Pacific densglass or similar sheathing panels of 5/8in. x 4ft. x 8ft., secured with 1 1/2" type S bugle head screws at a maximum screw spacing of 12 inches. o.c.

2. Ceiling framing should be made using the following materials:

Galvanized wall angle 1 in. x 1 in. gauge 28 attached to the wall with hot-dipped galvanized roofing nails of 1 1/2" @ 8 in. o.c. or #6 x 1 1/4" Phillips bugle head self-drilling drywall screws to attach angle to cement backing board.

Galvanized runner main channel 1 1/2" gauge 22, spaced at a maximum span of 48" oc.

Support main channel using galvanized suspension wire #14 @ 48 in. oc.

Secure hanger wires to upper structural elements using suspension pin clips of 1 1/4"

Ceiling furring channel 7/8" gauge 26, attached to runner channel using galvanized tire wire #18 and #7 x 1/2" Phillips self-drilling screws at each intersection.

Galvanized steel 3 5/8" tracks and studs gauge 26 in skylight roof curb, use

#7 x 1/2" Phillips self-drilling screws to attach curb to ceiling framing.

Use a galvanized 26-gauge corner bead of 1" for strengthening and protecting external corners and plastic j bead of 1/2" for ceiling to wall junctions and revealed-type edge protection.

Use stucco mesh as a reinforcing mesh for the entire surface.

3. Apply three coats of USG DUROCK or similar basecoat flexible cement over the entire surface: a first coat for joints treatment, bonding sheathing boards and embedding reinforcing mesh in densglass system; a second coat to neat finished edges; and apply a smooth finish on the final coat. maximum thickness 3mm.

WALL AND CEILING PAINTING

1. All surface defects shall be repaired and all existing surfaces shall be scraped to remove deteriorated coatings and other deleterious materials; all surfaces must be cleaned to completely remove grease, oil, chemical residues and sanding dust;

all surfaces should be cured a minimum of 24 hours before painting.

2. The product for latex primer shall be one coat of SHERWIN WILLIAMS or similar multi-purpose interior/exterior latex primer & sealer; this primer must be top coated within 14 days with architectural latex paint.

3. The product for the final two coats shall be SHERWIN WILLIAMS Excello or similar latex paint in white color. Allow all coats to dry overnight before continuing the painting process.

4. The preferred method of application is by roller, for coating awkward corners where the method is not suitable, brush application should be used.

STAINED GLASS

1. The Stained glass panel must be framed with an aluminum channel of 1/2inch. x

1/2inch. x 1/16 inch.

2. The panel shall resist the drop ball test of 0.5 lbs.

3. The leaded glass must be used under a waterproof glass skylight only and the glazing material must meet the following criteria:

The coloring, texturing or other design qualities or components of the glazing material cannot be removed without destroying the material.

the primary purpose of such glazing is decorative or artistic.

the glazing material is conspicuously colored or textured so as to be plainly visible and plainly identifiable as aesthetic or decorative rather than functional (other than for the purpose of admitting or controlling admission of light components or heat and cold).

the glazing material, or assembly into which it is incorporated, is divided into segments by conspicuous and plainly visible lines.

4. The mounting and installation process must meet us army corps of engineers

(ACOE) safety and health requirements manual (EM 385-1-1).

EXTERIOR CONCRETE SLAB WATERPROOFING

1. The concrete slab should be waterproofed using a SIPLAST TERAPRO or similar unreinforced waterproofing & surfacing system consisting of a liquid-applied

PMMA resin (polymethyl methacrylate resin). the system consists of one coat of primer and a wearing layer comprised of a hard-wearing surfacing with a pigmented finish layer.

2. New concrete should be cured with water for at least 28 days, concrete should not utilize curing agents, penetrating release agents, or be treated with waterproofing materials, as these materials can affect primer penetration and/or adhesion.

3. Concrete cracks should be treated with SIKA-2 or similar product before cleaning.

4. Substrate must be clean, dry and free from gross irregularities, loose material, knots, unsound material, or any foreign material (such as dirt, water, grease, oil, release/curing agents, paint, sap, glue), or any other condition that would be detrimental to the adhesion of the catalyzed primer and/or resin to the substrate.

5. All concrete surface must be cleaned and prepared using high pressure jet, repairs to the substrate, filling of joints, and surface leveling should be previously done.

6. Metals of the gutter and rake should be free of dust, oil and greases.

7. Resins used in TERAPRO or similar waterproofing and surfacing systems are fast setting and should only be catalyzed as needed. depending upon the resin type and ambient temperatures, the amount of catalyst needed will vary. refer to the product specifications for general guidelines.

8. Over the prepared concrete substrate, apply TERAPRO or similar primer e resin using a roller.

9. Apply TERAPRO VTS resin/filler mixture or similar using a trowel or a stub roller and follow-up with a spiked roller. allow to cure for a minimum of one hour.

10. Install a layer of white TERAPRO or similar color finish resin using a roller.

11. Immediately broadcast TERAPRO or similar texture beads into the wet embedment layer of pro color finish resin before it sets using a hopper gun, back roll to embed the pro texture beads into the wet resin.

FACILITY FALL PROTECTION

1. Hand Railings shall be made of Galvanized Tube 1 ½” x 1 ½” Gauge 21.

2. Use Steel Flat Bar ¾” x 1/8” welded with 1/8” in. E6013 Welding Rod Electrode to support a Link Fence.

3. Use a 2” x 2” Galvanized Steel Chain Link Fence to elaborate the Protective

Screens.

4. Utilize PLASTICADE or similar Portable Rubber Exterior Post Base for the Main

Supports of the Protective Screen.

File details come from the government source that posted it. Updated .