RotGuard™ Wood Rot Protection
Protect fence posts, deck posts, pergola posts, mailbox posts, agricultural posts, and structural wood from the most common cause of post failure—ground-line rot.
RotGuard™ is a self-adhesive SBS-modified bitumen wood post wrap engineered to protect the critical soil-line zone where moisture, fungi, and decay are most active. By creating a durable moisture barrier around the post, RotGuard™ helps extend service life and reduce premature post replacement.
Whether you’re installing a single fence, building a deck, setting agricultural posts, or working on a large commercial project, RotGuard™ offers a simple and effective way to protect your investment before it goes into the ground.
Choose the Right RotGuard™ Solution
Pre-Cut Post Wraps
- Sized for common 4x4, 5x5, 6x6, and 8x8 posts
- Fast installation with no cutting required
- Ideal for fence, deck, mailbox, and pergola projects
20-Foot Roll Material
- Cut to your own dimensions
- Perfect for rough-sawn timber, custom posts, poles, and unique applications
- Popular with contractors, farms, and commercial projects
Fits Square, Rectangular, and Round Posts
RotGuard™ Post Wraps are designed to fit:
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Standard dimensional lumber
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Nominal lumber sizes
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Square and rectangular posts
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Round wood posts (based on circumference)
Each wrap provides secure ground-line coverage while maintaining tight adhesion around the post surface.
Backed by a 25-Year Warranty Protection
When installed on pressure-treated lumber or heartwood cedar posts, RotGuard™ Post Wraps are backed by a 25-year limited warranty.
Protect your investment before it goes into the ground, not after it fails.
Why Ground-Line Protection Matters
Wood posts most often fail at the soil line due to:
• Constant soil moisture
• Oxygen exposure
• Warm soil temperature
• Freeze–thaw cycles
• Long-term ground contact
Even pressure-treated lumber and naturally rot-resistant cedar can deteriorate without proper ground-contact protection.
Install protection before setting the post, not after it fails.
Engineered Polymer Adhesion - Built to Stay Bonded
RotGuard™ Post Wraps are manufactured using SBS-modified bitumen, a polymer-enhanced waterproofing membrane engineered for flexibility and long-term adhesion.
SBS (Styrene-Butadiene-Styrene) transforms traditional asphalt into a rubberized, elastic membrane that cold-bonds directly to wood fibers — without requiring heat or torch application.
This cold-flow bonding performance allows the wrap to:
• Conform tightly to dimensional lumber
• Embed into the wood grain
• Maintain consistent soil-line contact
• Move with natural seasonal expansion and contraction
Unlike heat-shrink or torch-applied sleeves that can stiffen or separate over time, SBS-modified membranes remain flexible, helping the barrier stay sealed where protection matters most.
This is precision ground-line protection engineered to stay bonded, not just coated.