SECTION 10 82 00 - Grilles and Screens

ROOF SCREENS

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** NOTE TO SPECIFIER ** RoofScreen Mfg.; pre-engineered roof equipment screen products.
This section is based on the products of RoofScreen Mfg., which is located at:
347 Coral St.
Santa Cruz, CA 95060
Toll Free Tel: 866-766-3727
Tel: 831-421-9230
Fax: 866-253-0738
Email:request info ()
Web:
[Click Here] for additional information.
RoofScreen Mfg Inc. is a specialty manufacturing company that produces pre-engineered bolt-together screen wall systems designed to conceal air conditioners and other unsightly equipment on rooftops of commercial and industrial buildings.
Our goal is to provide you with an affordable solution for concealing roof top equipment on your building. With the RoofScreen system, we can make it look good and blend in with the architecture, while providing the long maintenance free service life that you expect. The flexible design allows you to choose from virtually any color, style and type of paneling material to achieve the architectural look you desire.
Our roof screens are pre-engineered metal roof screen systems with leak proof roof attachment details compatible with any type of roof. Our modular design allows virtually any height, width and panel style desired to enhance the architecture of the building. RoofScreen Mfg will provide full site specific structural calculations for each project. Please contact us to review your projects parameters and to insure the suitability of your spec for your project.

PART 1 GENERAL

1.1 SECTION INCLUDES

** NOTE TO SPECIFIER ** Delete items below not required for project.

A. Roof equipment screens and supporting steel framework.

B. Roof screen accessories.

1.2 RELATED SECTIONS

** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.

A. Section 03 30 00 - Cast-in-Place Concrete.

B. Section 04 05 19.29 - Stone Anchors.

C. Section 05 12 16 - Fabricated Fireproofed Steel Columns.

D. Section 05 31 13 - Steel Floor Decking.

E. Section 05 50 00 - Metal Fabrications.

F. Section 07 22 16 - Roof Board Insulation.

G. Section 07 50 00 - Membrane Roofing.

H. Section ______- Roof Curbs.

I. Section 09 90 00 - Painting and Coating.

J. Section ______- Roof Top Mechanical Equipment.

1.3 REFERENCES

** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.

A. ASTM A 500 - Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes.

B. ASTM A 653/A 653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.

C. ASTM A 666 - Standard Specification for Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar.

D. ASTM A 1008 - Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable.

E. ASTM B 749 - Standard Specification for Lead and. Lead Alloy Strip, Sheet, and Plate Products.

F. ASTM D 4811 - Specification for EPDM Sheet Used In Single-Ply Roof Membrane.

G. ASTM D 6878 - Specification for Thermoplastic Polyolefin Based Sheet Roofing.

H. ASCE 7-05 - Minimum Design Loads for Buildings and Other Structures

1.4 DESIGN / PERFORMANCE REQUIREMENTS

A. Structural Performance:

1. Design to resist ASCE 7-05 - Minimum Design Loads for Buildings and Other Structures.

2. Design all materials, assembly and attachments to resist snow, wind, suction and uplift loading at any point without damage or permanent set.

1.5 SUBMITTALS

A. Submit under provisions of Section 01 30 00 - Administrative Requirements.

B. Product Data: Manufacturer's data sheets on each product to be used, including:

1. Preparation instructions and recommendations.

2. Storage and handling requirements and recommendations.

3. Installation methods.

C. Shop Drawings: Layout and erection drawings showing typical cross sections and dimensioned locations of all frames and base supports. Include erection drawings, elevations, and details where applicable.

D. Design Data: Structural design calculations, bearing seal and signature of professional engineer licensed to practice in the State in which the project is located. Include reactions at base supports for verification of roof structure.

E. Selection Samples: For each panel product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.

F. Verification Samples: For each panel product selected, two sample chips representing actual color and finish.

G. Manufacturer's Certificates: Certify products meet or exceed specified requirements.

H. Manufacturers warranties.

1.6 QUALITY ASSURANCE

A. Manufacturer Qualifications: Manufacturer with a minimum five years documented experience in producing pre-manufactured metal-framed equipment screens.

B. Installer Qualifications: Installer with a minimum five years documented experience in installing similar systems.

C. Pre-Installation Meeting:

1. Convene at job site, at least seven calendar days prior to scheduled beginning of construction activities of this section, to review requirements of this section.

2. Require attendance by representatives of the roof screen installer, the roof and roof insulation installers, the mechanical equipment installers and other entities affected by construction activities of this section.

3. Notify Architect four calendar days in advance of scheduled meeting date.

** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.

D. Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.

1. Finish areas designated by Architect.

2. Construct mock-up, one full screen section wide, including two frames with roof supports.

3. Do not proceed with remaining work until workmanship and size is approved by Architect.

** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required.

4. Remove mock-up if required by Architect.

5. Accepted mock-ups shall be comparison standard for remaining Work.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Receive, handle and store materials in conformance with the manufacturers printed instructions.

B. Store products undercover, in manufacturer's unopened packaging until ready for installation.

C. Store materials in a dry, warm, ventilated weathertight location. Protect materials from exposure to moisture.

D. Roof Placement: Spread the bundles and crates out to avoid overloading the roof structure. Place the material directly over major supports such as beams or trusses.

1.8 SEQUENCING

A. Ensure that locating templates and other information required for installation of products of this section are furnished to affected trades in time to prevent interruption of construction progress.

B. Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.

1.9 WARRANTY

** NOTE TO SPECIFIER ** Select the standard 5 year or the extended 20 year warranty from the following two paragraphs and delete the one not required.

A. Manufacturer's Limited Warranty: 5 years covering complete framing system.

B. Manufacturer's Limited Warranty: 20 years covering complete framing system.

C. Panel Coating Warranty: 20 years covering film integrity, chalk resistance, and color change.

1.10 COORDINATION

A. Coordinate Work with other operations and installation of roofing materials to avoid damage to installed insulation and membrane materials.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturer: RoofScreen Mfg., which is located at: 347 Coral St.; Santa Cruz, CA 95060; Toll Free Tel: 866-766-3727; Tel: 831-421-9230; Fax: 866-253-0738; Email:request info (); Web:

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.

B. Substitutions: Not permitted.

C. Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.

2.2 MATERIALS

A. Base Supports: Fabricated from cold rolled steel conforming to ASTM A 1008 with internal deck fastening points. After fabrication, apply minimum 2-4 mil baked on powder coat primer.

** NOTE TO SPECIFIER ** Select one of the following height paragraphs as required to suit insulation thickness. Delete the paragraph not required.

1. Height 5 inches (127 mm).

2. Height 9 inches (229 mm).

3. Height 12 inches (305 mm).

** NOTE TO SPECIFIER ** Select one of the following four Flashing Boot paragraphs as required to suit project requirements. Delete the paragraphs not required.
** NOTE TO SPECIFIER ** The following all stainless boot is intended for use on roofs where the flange can be nailed to the deck.

B. Flashing Boot: Fabricated from 26 gauge, 304 stainless steel conforming to ASTM A 666, robotically fuse welded at seams for precision fit over base support. Provide with base flange that extends a minimum of 4 inches (102 mm) onto the roof surface on all four sides.

** NOTE TO SPECIFIER ** Select one of the following two height paragraphs as required to suit insulation thickness. Delete the paragraph not required.

1. Height 5 inches (127 mm).

2. Height 9 inches (229 mm).

3. Adjust height for roofing and insulation by snipping corners and snapping off extension tabs to desired height.

** NOTE TO SPECIFIER ** The following all stainless/lead boot is intended for use on built-up roofs over insulation, concrete or other substrate where the flange cannot be nailed or fastened to the substrate. The lead flange is soldered to the stainless steel riser portion.

C. Flashing Boot: Fabricated from 26 gauge, 304 stainless steel conforming to ASTM A 666, robotically fuse welded at seams for precision fit over base support. Provide with a lead base flange that is soldered to the riser and extends a minimum of 4 inches (102 mm) onto the roof surface on all four sides.

** NOTE TO SPECIFIER ** Select one of the following two height paragraphs as required to suit insulation thickness. Delete the paragraph not required.

1. Height 5 inches (127 mm).

2. Height 9 inches (229 mm).

3. Adjust height for roofing and insulation by snipping corners and snapping off extension tabs to desired height.

** NOTE TO SPECIFIER ** The following TPO boot is intended for use on TPO roofs with the TPO flange heat welded to the TPO roofing.

D. Flashing Boot: Fabricated 45 mil, white, single ply TPO sheet conforming to ASTM D 6878. Provide with base flange that extends a minimum of 5 inches (127 mm) onto the roof surface on all four sides.

E. Base Cap: Cold rolled steel conforming to ASTM A 1008. Fabricated to overlap base support and flashing boot a minimum of 2 inches (51 mm). After fabrication finish as follows:

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs and delete the one not required.

1. Powder coat, minimum 2-4 mils baked on.

2. PVDF fluoropolymer, 1 mil, 2 coat, 70 percent.

3. Color: Dupont Black T6IC Polyester #PFB603S9.

** NOTE TO SPECIFIER ** Gasket is optional but is recommended where assembly may be subject to standing water, ice and snow. Delete if not required.

F. Base Cap Gasket: EPDM with self-adhesive closed cell foam.

G. Framing: Carbon steel structural tubing with a 2.5 inch (64 mm) outside diameter conforming to ASTM A 500 with an Allied Tube "Gatorshield" triple layer galvanized coating. Provide with wall thickness as determined by structural calculations.

H. Connector Fittings: Fabricated from cold rolled steel conforming to ASTM A 1008. After fabrication, apply zinc plating conforming to ASTM B 633 Type 1, then baked on powder coating minimum 2-4 mil Dupont Black T6IC Polyester #PFB603S9.

I. Steel Z section: Steel sheet conforming to ASTM A 653, Class SS, with a G90 hot-dip galvanized coating.

J. Steel Hat Channel: Steel sheet conforming to ASTM A 653, Class SS, with a G90 hot-dip galvanized coating.

K. Hardware: Bolts, nuts, washers and screws 18-8 stainless steel.

** NOTE TO SPECIFIER ** Select one of the following two panel paragraphs for Standard Panels or Custom Panels as required for the project. Delete the paragraphs not required. Framing system is compatible with most manufacturer's panels. Framing may also be covered with stucco, EIFS and plywood with shingles. Contact the manufacturer for additional information.

L. Standard Panel:

1. Profile:

** NOTE TO SPECIFIER ** Select one of the following paragraphs and delete those not required.

a. 7.2 Panel.

b. 3 inch Deep Rib.

c. R Panel.

d. U Panel.

e. Corrugated Panel.

f. Flush Panel.

g. Flush Textured.

h. Foam Core.

i. Louvered:

1) 4 inch (102 mm) continuous aluminum louvers.

2) __ inch (___ mm).

2. Base Metal:

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs and delete the one not required.

a. Minimum 26 gauge Galvalume steel sheet, AZ50, conforming to ASTM A 792 for painted and unpainted panels.

b. Minimum 24 gauge Galvalume steel sheet, AZ50, conforming to ASTM A 792 for painted and unpainted panels.

3. Finish:

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs and delete the one not required.

a. PVDF fluoropolymer, 1 mil, 2 coat, 70 percent.

b. Siliconized polyester thermoset coating, 0.90 mil minimum dry film thickness.

** NOTE TO SPECIFIER ** Select one of the following two paragraphs and delete the one not required. Custom color is available for Flush Textured panels only.

c. Color as selected by Architect from manufacturer's standard color range.

d. Custom Color as selected by the Architect.

e. Coat reverse side with off-white primer coat.

4. Panel Fasteners: No. 14 self-tapping sheet metal screw. Exposed fasteners to match panel color.

5. Panel Trim: Same material and finish as panel. Configuration as shown on Drawings

** NOTE TO SPECIFIER ** Edit the following paragraphs as required. Coordinated selection with screen manufacturer.

M. Custom Panel: Panel No. ______as manufactured by ______.

1. Base Metal: ______.

2. Finish: ______.

3. Panel Fasteners: ______.

4. Panel Trim: ______.

2.3 FABRlCATlON

A. Fabricate, fit and shop assemble items in largest practical sections, for delivery to site.

B. Fabricate items with joints tightly fitted and secured.

C. Grind exposed joints flush and smooth with adjacent finish surface. Make exposed joints butt tight, flush, and hairline. Ease exposed edges to small uniform radius.

D. Supply components required for anchorage of fabrications. Fabricate anchors and related components of same material and finish as fabrication, except where specifically noted otherwise.

PART 3 EXECUTION

3.1 EXAMINATION

A. Examine installation area to verify the work can be performed in accordance with the Drawings and structural calculations without interferences from other equipment or trades.

B. Do not begin installation until substrates have been properly prepared.

C. If preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

3.2 PREPARATION

A. Clean surfaces thoroughly prior to installation.

B. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.

3.3 INSTALLATION

A. Install in accordance with manufacturer's instructions.

B. Install components plumb and level, accurately fitted, free from distortion or defects.

C. Provide for erection loads, and for sufficient temporary bracing to maintain indicated alignment until completion of erection and installation of permanent attachments.

D. Anchor fabrications to structure as indicated.

E. Separate dissimilar metals and use gasketed fasteners, isolation shim, or isolation tape to eliminate possibility of corrosive or electrolytic action between metals.

F. Exercise care when installing components so as not to damage finish surfaces. Touch up as required to repair damaged finishes.

G. Install flashing boots at base supports as required to provide a watertight connection. Install as recommended by the roofing materials manufacturer.

H. Remove all protective masking from material immediately after installation.

3.4 PROTECTION

A. Protect installed products until completion of project.

B. Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION

10 82 00-1