Standing Seam Metal Roofing
The Benefits of Standing Seam
Metal roofing can add aesthetic appeal and long lasting durability to your home for less than you might think. And with Walnut Creek Metals’ seasoned professionals you’ll receive the highest quality installation and workmanship. We take pride in our work, providing prompt and efficient service that you won’t get from just anyone.


Energy Efficient Roofing
At Walnut Creek Metals, we want you to get the most out of your roof. After all, we ourselves are homeowners and and the same quality and reliability for ours. That’s why we use the most energy efficient materials available to ensure your home is running smoothly and not unnecessarily costing you your hard earned money we leaks.
Standing Seam Profiles
1" Mechanical Seam
- For slopes lower than a 2/12 roof pitch contact Walnut Creek Metals for further installation direction and requirements.
- This panel uses a 20″ coil. Maximum width coil of 20″.
- This panel uses 3″ of material to form the panel.
- If you take the square footage of the roof and multiply that by 1.18, the total will be the amount of coil needed to manufacture the panels.
- This panel is approved for Weathertight Warranties.
- Suitable for zinc and copper.
1.5" Mechanical Seam
- With this 24 GA, 16″ wide panel engineering, you may opt to use heavier gauge coil and narrower width panels. Clip spacing will not change.
- For slopes lower than 2/12 roof pitch, contact Walnut Creek Metals for further installation direction and requirements
- This panel uses a 20″ coil. Maximum width coil of 20″.
- This panel uses 4″ of material to form the panel.
- If you take the square footage of the roof and multiply that by 1.25, the total will be the amount of coil needed to manufacture the panels.
- This panel is approved for Weathertight Warranties.
Steel:
- Plywood: SMI 1.5″ MS UL 580 & UL 1897 Uplift Tests (PDF)
- B-Deck: SMI 1.5″ MS UL 580 & UL 1897 Uplift Tests (PDF)
- B-Deck with ISO: SMI 1.5″ MS UL 580 & UL 1897 Uplift Tests (PDF)
Aluminum:
- Plywood: SMI 1.5″ MS UL 580 & UL 1897 Uplift Tests (PDF)
- B-Deck: SMI 1.5″ MS UL 580 & UL 1897 Uplift Tests (PDF)
- B-Deck with ISO: SMI 1.5″ MS UL 580 & UL 1897 Uplift Tests (PDF)
- SMI 1.5″ MS UL 90 Test – Construction No. 605 (PDF)
16″ Wide 24 GA 16 OZ Copper Over Plywood - SMI 1.5″ MS UL 90 Test – Construction No. 603 (PDF)
20″ Wide .032 Embossed Aluminum Over Plywood - SMI 1.5″ MS UL 90 Test – Construction No. 554 (PDF)
90° Seam 16” Wide 24 GA Over Plywood
Steel:
- Plywood: SMI 1.5″ MS ASTM E 1680 Air Infiltration Tests (PDF)
- B-Deck: SMI 1.5″ MS ASTM E 1680 Air Infiltration Tests (PDF)
- B-Deck with ISO: SMI 1.5″ MS ASTM E 1680 Air Infiltration Tests (PDF)
Aluminum:
- All Substrates: SMI 1.5″ MS ASTM E 1680 Air Infiltration Tests (PDF)
Steel:
- Plywood: SMI 1.5″ MS ASTM E 1646 Water Penetration Tests (PDF)
- B-Deck: SMI 1.5″ MS ASTM E 1646 Water Penetration Tests (PDF)
- B-Deck with ISO: SMI 1.5″ MS ASTM E 1646 Water Penetration Tests (PDF)
Aluminum:
- All Substrates: SMI 1.5″ MS ASTM E 1646 Water Penetration Tests (PDF)
Steel:
- Plywood: SMI 1.5″ MS Over Plywood TDI Approval (PDF)
- B-Deck: SMI 1.5″ MS Over B-Deck TDI Approval (PDF)
- B-Deck with ISO: SMI 1.5″ MS Over B-Deck with ISO TDI Approval (PDF)
Limited Warranty Samples:
- 5-Year Weathertight Limited Warranty Sample (PDF)
- 10-Year Weathertight Limited Warranty Sample (PDF)
- 15-Year Weathertight Limited Warranty Sample (PDF)
- 20-Year Weathertight Limited Warranty Sample (PDF)
- 25-Year Weathertight Limited Warranty Sample (PDF)
- 30-Year Weathertight Limited Warranty Sample (PDF)
- 35-Year Weathertight Limited Warranty Sample (PDF)
Limited Warranty Samples:
- 5-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 10-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 15-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 20-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 25-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 30-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 35-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
Weathertight Warranty Submittal Package
Weathertight Warranty Procedures
Plywood Details
Metal Deck Details
Metal Deck with ISO Details
1.5" SnapLock
- With this 24 GA, 16″ wide panel engineering, you may opt to use heavier gauge coil and narrower width panels. Clip spacing will not change.
- For slopes lower than 2/12 roof pitch, contact Walnut Creek Metals for further installation direction and requirements
- This panel uses a 20″ coil. Maximum width coil of 20″.
- This panel uses 4″ of material to form the panel.
- If you take the square footage of the roof and multiply that by 1.25, the total will be the amount of coil needed to manufacture the panels.
- This panel is approved for Weathertight Warranties.
- SMI 1.5″ SL 450 SL UL 90 Test – Construction No. 589 (PDF)
16″ Wide 24 GA Panel Over Plywood
Limited Warranty Samples:
- 5-Year Weathertight Limited Warranty Sample (PDF)
- 10-Year Weathertight Limited Warranty Sample (PDF)
- 15-Year Weathertight Limited Warranty Sample (PDF)
- 20-Year Weathertight Limited Warranty Sample (PDF)
- 25-Year Weathertight Limited Warranty Sample (PDF)
- 30-Year Weathertight Limited Warranty Sample (PDF)
- 35-Year Weathertight Limited Warranty Sample (PDF)
Limited Warranty Samples:
- 5-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 10-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 15-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 20-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 25-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 30-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
- 35-Year No Dollar Limit Weathertight Limited Warranty Sample (PDF)
Weathertight Warranty Submittal Package
Weathertight Warranty Procedures
Plywood Details
See Our Work
Standing Seam Metal Roofing
Our vision has always been to create a roof that is above the rest, while providing the best customer service. Come take a look at a few of our recent standing seam metal roof projects.
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We at Walnut Creek Metals are homeowners ourselves and have worked with homeowners for more than 20 years. We’re here to help you make a decision about your home that’s right for you.