Required Statements. 5.1 Only roofing products that comply with Metal Construction Association performance requirements will be labeled. Prerequisites: 1. Substrate must have a relevant and current ASTM Standard established. 2. Manufacturer technical literature must be readily available. Test samples of new substrates intended to be painted must be evaluated in triplicates with a Standard Performance paint system as outlined in the MCA Metal Roofing Certification Program. All new substrates being evaluated must show painted performance compared to G90 HDG and AZ50 55%Al-Zn coated steel controls with same type of paint system. The control material must comply with Metal Construction Association Certified Standard Painted™ provisions. All test panels must include: • 3-T bend • 5/8 “ reverse impact • scribe to the metallic coating Exterior Coat a.) Primer shall meet the coating manufacturer’s technical data sheet requirements. b.) Topcoat shall be fully cured and of consistent color throughout the Project of uniform color consistent with the established color range. Limits for acceptable production color variations are to be established between the approval source and applicator. 1.) T-bend Test (ASTM D 4145): 3T, or better, no tape-off (ASTM D3359), and shall meet the coating manufacturer’s technical data sheet requirements. 2.) Reverse Impact (ASTM D 2794, 5/8” [16 mm] ball): 3000X metal thickness (expressed in inch- pounds ) for referenced steel materials in section 2.02 A of this specification, or 1500X metal thickness for aluminum; no tape-off (ASTM D3359), and shall meet the coating manufacturer’s technical data sheet requirements. 1. Salt Spray (ASTM B 117):, taped top edge and at least one vertical edge, leaving drip edge exposed; Record time to white rust and time to red rust. After 1000 hours evaluate creep at scribe (ASTM D1654) and cut edges. 8F maximum, blistering in the field of the test panel (rated per ASTM D 1654) Performance must be equal or better than the control material. 2. Humidity Resistance (ASTM D 2247 or D 1735): ( 1000 hours) evaluate for blistering, cracking, creepage, or corrosion. (rated per ASTM D1654) Performance must be equal or better than the control material. 3. Prohesion Test (ASTM G85 – Appendix -5)): Record number of cycles to white rust and to red rust. Performance must be equal or better than the control material.
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Sources: Memorandum of Understanding, Memorandum of Understanding
Required Statements. 5.1 Only roofing products that comply with Metal Construction Association performance requirements will be labeled. Attachment D Prerequisites:
1. Substrate must have a relevant and current ASTM Standard established.
2. Manufacturer technical literature must be readily available. Test samples of new substrates intended to be painted must be evaluated in triplicates with a Standard Performance paint system as outlined in the MCA Metal Roofing Certification Program. All new substrates being evaluated must show painted performance compared to G90 G-90 HDG and AZ50 55%Al55% Al-Zn coated steel controls with same type of paint system. The control material must comply with Metal Construction Association Certified Standard Painted™ provisions. All test panels must include: • 3-T bend • 5/8 “ 5/8” reverse impact • scribe to the metallic coating Exterior Coatcoating
a.) Primer shall meet the coating manufacturer’s technical data sheet requirements.
b.) Topcoat shall be fully cured and of consistent color throughout the Project of uniform color consistent with the established color range. Limits for acceptable production color variations are to be established between the approval source and applicator.
1.) T-bend Test (ASTM D 4145): 3T, or better, no tape-off (ASTM D3359), and shall meet the coating manufacturer’s technical data sheet requirements.
2.) Reverse Impact (ASTM D 2794, 5/8” [16 mm] ball): 3000X 3,000X metal thickness (expressed in inch- inch-pounds ) for referenced steel materials in section 2.02 A of this specification, or 1500X 1,500X metal thickness for aluminum; no tape-off (ASTM D3359D 3359), and shall meet the coating manufacturer’s technical data sheet requirements.
1. Salt Spray (ASTM B 117):, ): taped top edge and at least one vertical edge, leaving drip edge exposed; Record time to white rust and time to red rust. After 1000 1,000 hours evaluate creep at scribe (ASTM D1654D 1654) and cut edges. 8F maximum, blistering in the field of the test panel (rated per ASTM D 1654) ). Performance must be equal or better than the control material.
2. Humidity Resistance (ASTM D 2247 or D 1735): ( 1000 (1,000 hours) evaluate for blistering, cracking, creepage, or corrosion. (rated Rated per ASTM D1654D 1654) Performance must be equal or better than the control material.
3. Prohesion Test (ASTM G85 – Appendix -55)): Record number of cycles to white rust and to red rust. Performance must be equal or better than the control material.
Appears in 1 contract
Sources: Memorandum of Understanding