Wall Sheathing 101: Choosing the Right Material for Strength and Airtightness
By Graham Mann | Published: 11/24/2025
Explore essential factors in selecting wall sheathing materials for strength, moisture resistance, and energy efficiency in your home.
Wall Sheathing 101: Choosing the Right Material for Strength and Airtightness Wall sheathing is the backbone of your home’s exterior, impacting both durability and energy efficiency. The best material depends on your project’s needs, climate, and budget. Here’s a quick breakdown: - Plywood: Strong, moisture-resistant, costs $1.25–$2.50/sq ft. Needs sealing for airtightness. - OSB: Budget-friendly ($0.75–$1.75/sq ft), good strength, but less moisture-resistant. - ZIP System(https://www.huberwood.com/zip-system) Panels: Combines sheathing with a built-in weather barrier. Great for airtightness, costs $2.25–$3.50/sq ft. - Magnesium Oxide (MgO): Fire and moisture-resistant, durable but pricier. - Rigid Foam Insulation: Boosts thermal performance, not structurally supportive. Key takeaway: For humid climates, plywood or ZIP panels work well. For energy efficiency, consider ZIP or rigid foam. OSB is a cost-effective option for dry areas, while MgO suits extreme conditions. Proper sealing is ...
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