Yes, you do need closure strips for metal roofing. Closure strips seal the gaps between metal panels and the roof structure. They keep rain, snow, and bugs out of your roof. Without them, water can leak into your attic and cause damage. Most metal roof jobs need closure strips at the eaves, ridges, and valleys.
What Are Closure Strips?
Closure strips are foam or rubber pieces that fit between metal panels. They fill empty spaces where water could get in. Think of them like weatherstripping for a door, but for your roof.
These strips come in different shapes and sizes. Some are flat, and some have bumps that match your metal panels. The bumps help them fit better and seal tighter. Most are made from foam or ethylene propylene diene monomer (EPDM) rubber.
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Where Do You Need Them?
Closure strips go in three main spots on your metal roof.
- Eaves (bottom edges)
- Ridges (top peaks)
- Valleys (where two roof slopes meet)
Without closure strips at these spots, wind-driven rain gets inside. Snow can melt and drip through gaps. Bugs and birds may nest under your metal panels. All of this leads to costly repairs.
How Long Does Metal Roofing Last?
Metal roofs can last 40 to 80 years if installed right. According to RubyHome, metal roofing has a lifespan of 40 to 80 years. This is much longer than asphalt shingles, which last only 20 to 30 years. Proper closure strips help your metal roof reach its full lifespan.
Asphalt shingles typically last about 20 years, while architectural asphalt shingles last around 30 years. But metal roofs with good sealing and closure strips can last decades longer. The investment pays off over time.
Cost and Installation Tips
Metal roof installation costs between $4 and $40 per square foot, according to RubyHome. For a 1,700 square foot roof, costs range from $6,800 to $68,000. Closure strips are a small part of this cost but make a big difference in roof performance.
Hire a professional roofer to install closure strips correctly. They know where gaps hide and how to seal them properly. A skilled roofer will prevent leaks that could cost thousands to fix later. According to the U.S. Bureau of Labor Statistics, roofers earn a median wage of $50,030 per year. Paying for their expertise saves money in the long run.
| Metal Roof Type | Lifespan | Installation Cost (per sq. ft.) |
|---|---|---|
| Standing Seam Metal | 40-80 years | $10.00-$17.05 |
| Corrugated Metal | 40-80 years | $5.50-$11.50 |
| Steel Shingles | 40-80 years | $8.00-$12.65 |
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Contact a qualified roofing solutions for expert guidance on roof repair, replacement, or installation.