Classic Rib Foam Closure Strips 3ft 9in Rib Profile - Weatherproof

Our review focuses on these classic rib foam closure strips and their fit for residential and light commercial metal roofs. The bottom line is that the 20-pack of 3 ft black corrugated foam strips is a practical, long-lasting way to stop drafts, insects and horizontal rain where panels meet, and the product is especially strong on durability and foam density. In this review the most compelling reason to buy is the simple, interlocking dovetail design combined with a high-density foam that reduces noise and vibration while forming a weatherproof barrier.

Key Features

• Made in the USA: Built to resist heat, UV and moisture so the foam holds up over time on exposed metal roofs.
• Weatherproof sealing: The molded rib profile blocks water, wind, dust and light leaks to keep out drafts and insects beneath panels.
• Bulk coverage: The 20-pack of 3 ft strips supplies continuous length for larger jobs without frequent restocking.
• Noise and vibration reduction: High-density foam helps reduce sound transmission and vibration across metal roof surfaces.
• Interlocking dovetail design: The secure snap-in profile installs quickly and stays in place without relying on adhesive for many installations.

Who It's For

These closure strips are best for homeowners, contractors and hobbyists working with 9 in rib corrugated metal panels who need a durable, lightweight material to seal gaps and improve insulation. They suit roof edges, ridges and places where horizontal rain or insect entry is a concern, and they are convenient on garages, barns, workshops and small commercial buildings.

Those who should look elsewhere include projects that require a pre-applied adhesive backing or specialty chemical resistance beyond typical roofing conditions; adhesives are not included, and a user preferring self-adhesive closures will need to add a compatible product.

Pros & Cons

Pros

• Durable foam that withstands UV, heat and moisture for long-term service.
• Effective sealing against moisture, dust, light and insects when installed properly.
• Bulk 20-pack and 3 ft length make coverage and stock management straightforward.
• Reduces roof noise and vibration in workshops and storage structures.

Cons

• Adhesive is not included and some customers expect a self-adhesive backing, so extra fastening steps may be needed.

Specifications

Brand	Duco Plastics & Supply
Profile	9 in rib corrugated
Strip length	3 ft
Quantity	20 strips per pack
Color	Black
Primary benefits	Weatherproofing, noise reduction, moisture and dust seal

Our Verdict

For anyone installing or repairing 9 in rib metal roofing who needs a reliable, weather-resistant closure, this 20-pack delivers solid value and performance. The durable, high-density foam and dovetail snap-in shape make it a practical choice for reducing drafts, insects and roof noise while covering larger runs without frequent reorders; just plan for adhesive or mechanical fastening if your application requires it.

Frequently Asked Questions

Are adhesives included?
No, adhesives are not included; the dovetail design often snaps into place but some installations will require adhesive or mechanical fasteners.

Will these fit my 9 in rib panels?
Yes, they are molded for a 9 in rib profile and intended to match that panel spacing and shape.

Do they help with roof noise?
Yes, the high-density foam reduces sound transmission and vibration across metal roof surfaces.