Best Furring Strips for Metal Roofing: A Practical Guide to Sealing, Insulation and Moss Prevention
When choosing furring strips, foam closure strips, and flashing for metal roofing, look for materials that seal gaps, reduce noise, prevent moss and stains, and offer durable weather resistance. This guide highlights five well-suited options for American homeowners, DIYers, and professional roofers. The following products are selected for their compatibility with standard metal roof panels, ease of installation, and clear use cases. A quick buyer’s table helps compare key specs at a glance.
| Product | Brand | Approx. Size | Best For |
|---|---|---|---|
| Fixirons 2 Pack Zinc Metal Strip | Fixirons | 55 ft x 2.5 in | Moss prevention and stain reduction on zinc-coated roofs |
| Yaocom White Aluminum Flashing Roll | Yaocom | 10 in x 10 ft | Wide coverage for flashing and weatherproofing |
| Rawolp 9 in Foam Closure Strips | Rawolp | 3 ft long each (9 in wide, 10 pcs) | Insulation and sealing for corrugated panels |
| KEOHOLI 20Pcs 36″ Foam Closure Strips | KEOHOLI | 36 in per strip, 20 pieces | Bulk sealing and weatherproofing for large projects |
| SuperDi 9 in Classic Rib Closure Strips | SuperDi | 3 ft long (10 Pcs) | R panel compatibility and sound dampening |
Fixirons 2 Pack Zinc Metal Strip for Roof and Moss Control
Best for: DIY homeowners tackling roof moss and staining on zinc-coated metal roofs. Why selected: This zinc sheet metal roll (99.9% zinc) provides superior waterproof and corrosion resistance with easy-cutting versatility. The roll is long enough for multiple runs, and its 2.5-inch width suits standard rakes and ridge lines. Use to prevent staining and moss growth, especially on exposed metal surfaces. Caution: The thickness is thin (0.1 mm); ensure precise trimming and secure fastening to avoid gaps in high-wind areas.
Pushglossy 30 Pcs Metal Roof Foam Closure Strips
Best for: Insulating and sealing outside textured rib profiles. Why selected: A 30-piece pack of 36-inch foam strips provides ample coverage to block vapor and reduce outdoor noise along rib panels. The foam is designed to withstand extreme temperatures with minimal cracking or shrinking. Caution: The product is foam-based; avoid compression from heavy equipment or direct friction against sharp metal edges which could degrade the strip over time.
Yaocom White Aluminum Flashing Roll
Best for: Wide-coverage flashing to weatherproof roof edges and openings. Why selected: This 10 inch by 10 ft aluminum flashing roll offers durable, corrosion-resistant coverage with a bright white finish that blends with many roofing materials. The surface is designed for easy cutting and shaping, aligning with DIY and professional projects. Caution: Size may require more than one roll for larger roofs; plan layout to minimize seams.
KEOHOLI 20Pcs Foam Closure Strips
Best for: Large projects needing bulk sealing and weatherproofing. Why selected: This 20-piece kit provides 36-inch foam closure strips with integrated self-adhesive, enabling quick, clean installations for multiple panels. The closed-cell PE foam resists moisture and reduces heat transfer while staying durable under varied weather. Caution: Self-adhesive backing may require surface preparation to maximize adhesion on glossy or fragile panels.
Pushglossy 35 Pcs 9 in Foam Closure Strips (Interior)
Best for: Interior sealing and insulation along rib profiles. Why selected: This bulk pack of 35 pieces (3 ft each) is designed for interior applications, providing heat insulation, moisture control, and sound dampening. The interior orientation helps to create a quiet, energy-efficient indoor environment. Caution: Interior use may require complementary exterior closures for complete moisture control on certain roof assemblies.
Buying Guide: Key Purchase Considerations
- Material compatibility: Choose zinc, aluminum, or foam closures based on your roof material and exposure to moss, staining, or moisture.
- Size and coverage: Confirm strip length, width, and thickness match your panel profiles (R, U, or classic rib) and the roof slope.
- Weather resistance: Favor corrosion-resistant metals and closed-cell foam that resist moisture, UV exposure, and temperature swings.
- Adhesion and installation: Self-adhesive backings simplify installation but ensure surface cleanliness for strong adhesion.
- Noise and insulation: Foam closures can dampen noise and reduce heat transfer; interior options help when exterior noise control is the priority.
- Bulk quantity: For larger roofs, select bulk packs to minimize interruptions and ensure consistent seal across panels.
Frequently Asked Questions
- What is a foam closure strip used for on metal roofs? Answer: It seals gaps between panels, reduces air leakage, and dampens noise for improved energy efficiency and comfort.
- Can metal flashing prevent moss on metal roofs? Answer: Yes, flashing helps direct water away and can minimize moss exposure when combined with moss-prevention treatments.
- Do I need self-adhesive backing on foam closures? Answer: Self-adhesive backs simplify installation, but surface prep improves adhesion on glossy or dirty panels.
- Which product is best for large DIY projects? Answer: Bulk foam closure kits (like KEOHOLI 20Pcs or Pushglossy 35 Pcs) are well-suited for extensive roof work.
- Are foam closures safe for all climates? Answer: High-quality PE foam closures resist moisture and temperature changes, but check product specifications for your climate and roof type.