Sheffield Metals 1.5″ SnapLock 550 – Panel Profile
An engineered 1.5″ snap-lock standing seam profile with full third-party uplift, water, air, and impact testing — built for commercial roofs that need documented performance.
Profile Uses, Engineering & Installation Tips
Sheffield Metals 1.5″ SnapLock 550 – Panel Profile details
Technical Information:
CUTSHEET
GUIDE SPECIFICATIONS
Steel
Plywood: SMI 1.5 SL 550 Over Plywood Specifications
Aluminum
Plywood: SMI 1.5 SL 550 Over Plywood Specifications
B-Deck: SMI 1.5 SL 550 Over B-Deck Specifications
B-Deck with ISO: SMI 1.5 SL 550 Over Insulated B-Deck Specifications
INSTALLATION DETAILS
Steel
Plywood: SMI 1.5″ SL 550 Over Plywood Installation Details
Aluminum
Plywood: SMI 1.5″ SL 550 Over Plywood Installation Details
B-Deck: SMI 1.5″ SL 550 Over B-Deck Installation Details
B-Deck with ISO: SMI 1.5″ SL 550 Over Insulated B-Deck Installation Details
Steel & Aluminum (.DWG file)
Plywood: SMI 1.5″ SL 550 Installation Details
UPLIFT TESTING
Steel
Plywood: SMI 1.5″ SL 550 UL 580 & 1897 Uplift Testing
Aluminum
Plywood: SMI 1.5″ SL 550 UL 580 & 1897 Uplift Testing
B-Deck: SMI 1.5″ SL 550 UL 580 & 1897 Uplift Testing
B-Deck with ISO: SMI 1.5″ SL 550 UL 580 & 1897 Uplift Testing
UL 90 TESTING
SMI 1.5″ SL 550 UL 90 Test – Construction No. 373
12” wide 24-gauge panel over purlins spaced at 4 feet
SMI 1.5″ SL 550 UL 90 Test – Construction No. 467
18” wide (UL 90) / 19.5” wide (UL 60) 24-gauge panel over purlins spaced at 3 feet
AIR INFILTRATION TESTING
Steel
Plywood: SMI 1.5″ SL 550 ASTM E 1680 Air Infiltration Testing
Aluminum
Plywood: SMI 1.5″ SL 550 ASTM E 1680 Air Infiltration Testing
B-Deck: SMI 1.5″ SL 550 ASTM E 1680 Air Infiltration Testing
B-Deck with ISO: SMI 1.5″ SL 550 ASTM E 1680 Air Infiltration Testing
WATER PENETRATION TESTING
Steel
Plywood: SMI 1.5″ SL 550 ASTM E 1646 Water Penetration Testing
Aluminum
Plywood: SMI 1.5″ SL 550 ASTM E 1646 Water Penetration Testing
B-Deck: SMI 1.5″ SL 550 ASTM E 1646 Water Penetration Testing
B-Deck with ISO: SMI 1.5″ SL 550 ASTM E 1646 Water Penetration Testing
IMPACT RESISTANCE TESTING
FIRE RATING
FBC APPROVAL
Steel
Plywood: Non-HVHZ FBC Approval
TDI APPROVAL
Steel
Plywood: SMI 1.5″ SL 550 TDI Approval
WEATHERTIGHT WARRANTIES
Limited Warranty Samples
5-Year Limited Weathertight Warranty Sample
10-Year Limited Weathertight Warranty Sample
15-Year Limited Weathertight Warranty Sample
20-Year Limited Weathertight Warranty Sample
25-Year Limited Weathertight Warranty Sample
30-Year Limited Weathertight Warranty Sample
35-Year Limited Weathertight Warranty Sample
No Dollar Limit Warranty Samples
10-Year No Dollar Limit Weathertight Warranty Sample
15-Year No Dollar Limit Weathertight Warranty Sample
20-Year No Dollar Limit Weathertight Warranty Sample
25-Year No Dollar Limit Weathertight Warranty Sample
30-Year No Dollar Limit Weathertight Warranty Sample
35-Year No Dollar Limit Weathertight Warranty Sample
Weathertight Warranty Quote Request
Weathertight Warranties Fillable Quote Request Form
Weathertight Warranty Application
PAINT & SUBSTRATE WARRANTIES
Paint Warranty Samples
40-Year Transferable PVDF Paint Warranty Sample
40-Year WeatherXL™ SMP Paint Warranty Sample
35-Year Weathered Metal Series™ Paint Warranty Sample
35-Year Coastal PVDF Paint Warranty Sample (Aluminum ONLY)
20-Year Caribbean PVDF Paint Warranty Sample
Substrate Warranty Samples
50-Year AZ50 Galvalume® Warranty Sample (PDF)
45-Year AZ55 Acrylic-Coated Galvalume® Warranty Sample (PDF)
