SKU: 7458002950

GAF Metalastic Aluminum Straight Metal Flange (SMF) Expansion Joint Cover, 4 in. x 50 ft Roll

Sale price$194.90 Regular price$216.56
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Description

GAF Metalastic Aluminum Straight Metal Flange (SMF) Expansion Joint Cover, 4 in. x 50 ft RollMetalastic Aluminum SMF Expansion Joint Cover Durable aluminum straight metal flange expansion joint cover designed for long, continuous runs to minimize leak prone splices. Supplied in a 4 in. x 50 ft roll, it helps reduce installation time and costs for commercial roofing applications. Key Features: Continuous Lengths: Supplied in long runs to eliminate up to 90% of field splices that can leak Leak Resistant Design: Metalastic system helps prevent

Metalastic Aluminum SMF Expansion Joint Cover

Durable aluminum straight metal flange expansion joint cover designed for long, continuous runs to minimize leak-prone splices. Supplied in a 4 in. x 50 ft roll, it helps reduce installation time and costs for commercial roofing applications.


Key Features:

  • Continuous Lengths: Supplied in long runs to eliminate up to 90% of field splices that can leak
  • Leak-Resistant Design: Metalastic system helps prevent water intrusion and reduces call-backs
  • Cost Efficient: Can reduce installed costs by up to 8% versus traditional splice-heavy methods
  • Durable Construction: Aluminum straight metal flange built for commercial roofing environments
  • Convenient Roll Size: 4 in. width x 50 ft length for straightforward handling and installation

Specifications Table:

Specification Details
Product Name Metalastic Aluminum Straight Metal Flange (SMF) Expansion Joint Cover
Brand GAF
SKU 23418
Manufacturer Number EJSMF 4A 050
Product Number GAFSMF4A50
Style Commercial Flashings
Base Material Aluminum
Unit of Measure Roll (RL)
Dimensions 4 in x 50 ft
Item Weight 35 lb
Key Benefit Continuous lengths reduce field splices by up to 90% and installed costs by up to 8%

Frequently Asked Questions (FAQ):

Q: What are the dimensions of this roll?
A: This variant is 4 inches wide by 50 feet long.


Q: What material is the flange made from?
A: The straight metal flange is aluminum.


Q: How does this product help prevent leaks?
A: It is provided in continuous lengths, reducing the number of field splices—one of the most common leak points in expansion joint covers.


Q: Can it help reduce installation costs?
A: Yes, the Metalastic design can reduce installed costs by up to 8% compared to systems with numerous splices.


Q: Is there documentation available?
A: Yes—product brochures and SDS are available via the manufacturer resources linked in the web data.


Streamlined Protection With Architectural Poise

This expansion joint cover brings a clean, tailored silhouette to the roofline, marrying utility with refinement. I love the continuous-run concept—it feels seamless and intentional, reducing visual noise while elevating performance. Pair it with crisp metal edges and matte membranes to create a disciplined, modern profile. It’s a quiet luxury detail that safeguards your investment while keeping the aesthetic impeccably composed.


Choose Metalastic SMF to streamline installation, minimize leaks, and elevate your roof’s performance today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7458002950

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4.4 ★★★★★
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Maryland1
Belleville, US
★★★★★ 4
Nice base in general
Base seemed nice coming out of the box. Good size, though double check it will work for your needs as my mistake it was just a bit too big. Filled with water, it is a decent base to utilize with an umbrella I feel. Not sure if others' bases had this, too, but mine has some kind of object rolling around the side. No way to get it out. Not sure if when the hole is drilled into the top, it's from that? Also, when filling with water, there were unpleasant fumes coming out. Water mixing with the rubber material on the inside? All that said, for the price, this is a good option to consider for an umbrella base.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2025
S
Verified Purchase
S. Ramsey
Birmingham, US
★★★★★ 5
Great Stand!
Color: Black - Fluted
Awesome stand for the umbrella. Works well. Has kept the umbrella in place.
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Reviewed in the United States on April 22, 2026
A
Verified Purchase
Andy Rodriguez
Pawtucket, US
★★★★★ 5
Sturdy, Reliable, and Visually Pleasing - A Must-Have Patio Accessory!
I recently purchased the Best Choice Products 55lb Capacity Fillable Umbrella Base Stand for my backyard patio, and I have to say, I'm absolutely thrilled with this purchase. This umbrella stand has quickly become a reliable and crucial part of our outdoor setup. To start off, the assembly was straightforward and didn't take up much time. The instructions were clear, easy to understand, and within minutes we were able to get it set up. No additional tools or complex steps were necessary, which was a great relief as I'm not exactly a DIY person. I filled it with sand, which brought it to its maximum capacity of 55lbs, and the stability it provides is exceptional. We've had several windy days since I've purchased the stand, and not once has my patio umbrella tilted or tipped. The 2 adjustment knobs on the sides help to secure the umbrella pole firmly, which provides an additional layer of stability. The stand's faux wicker design is another aspect I absolutely love. It beautifully complements my other patio furniture and adds a touch of sophistication to my outdoor decor. The plastic used for the stand is of high quality and convincingly mimics the look of real wicker without the associated maintenance or weathering concerns. Being a round base, it conveniently fits in our patio corner without taking up too much space. Moreover, it's been outside in various weather conditions - from intense sun to rain showers - and it hasn't shown any signs of wear or color fading. The material seems durable and capable of withstanding different weather patterns, which is exactly what I needed. Also, despite being sturdy and heavy when filled, the base is easy to move around when empty. This makes it convenient to store away during the winter or rearrange when we want to change up our patio layout.
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Reviewed in the United States on May 22, 2023
B
Verified Purchase
Brandi L Gannon
Phoenix, US
★★★★★ 5
Umbrella base
Color: Black - Sunburst
Great product!
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Reviewed in the United States on May 15, 2026
T
Verified Purchase
The Andersons
Alexandria, US
★★★★★ 3
Good stand but has issues.
Color: Black - Sunburst
Very sturdy and looks good. But, the part that holds the umbrella is loose and requires a wedge to stop it spinning (I used a plastic knife). Also the screw on the bottom RUSTS and in a BIG way. To solve the rust issue I put an old plastic cutting board under it. We use it with the modifications mentioned.
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Reviewed in the United States on May 7, 2026

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