LP® TechShield® Radiant Barrier Sheathing can be a cost-effective way to boost a home’s energy efficiency and improve HERS® Index scores. This product helps block heat in the roof panel from emitting into a home’s attic.
Builders and designers often ask: Can LP® TechShield® Radiant Barrier Sheathing be installed over battens?
Yes, LP® TechShield® Radiant Barrier Sheathing can be installed over battens in the instance that:
The attachment method meets structural codes and requirements
Proper ventilation is incorporated into the roof system
Recommended Roof Assembly
When LP® TechShield® Radiant Barrier Sheathing is installed over battens, the roof assembly should be followed in this order:
1. OSB Sheathing Over Rafters or Trusses
This layer provides the primary structural roof deck.
2. Underlayment Over OSB
This provides moisture protection and weather resistance.
3. Battens Must be Aligned with Rafters or Trusses
A minimum 3/4" thickness (nominal 1x lumber) is required for the battens to provide the required minimum air gap between the LP® TechShield® panels and the roof sheathing. The attachment method has to be approved by a building official.
4. LP® TechShield® Radiant Barrier Sheathing Installation
LP® TechShield® Radiant Barrier Sheathing must be installed with the reflective side down over the battens. Fastener length must be sufficient to attach LP® TechShield® panels through battens, existing roof sheathing, and meet required penetration into roof framing or as prescribed by a design professional.
5. Continuous Ventilation from Soffit to Ridge
Ventilation is required to maintain air flow between layers.
6. Secondary Underlayment
Another layer of underlayment is required to be installed over the LP® TechShield® Radiant Barrier Sheathing panels. This will prepare the surface for roofing.
7. Shingles or Roofing Materials
Final roofing materials are installed according to manufacturer specifications and local codes.
Ultimately, installing LP® TechShield® Radiant Barrier Sheathing over battens is possible when the roof assembly is carefully designed and approved by a building official. By following the correct layer sequence, builders can achieve both structural performance and thermal efficiency.
For more information on LP® TechShield® Radiant Barrier Sheathing, visit https://lpcorp.com/products/panels-sheathing/radiant-barrier
