CDX Plywood Sheathing
- Made with exterior glue.
*Maximum roof span/maximum floor span
Gold Bond eXP Extended Exposure or G-P Dens-Glass Gold Gypsum Sheathing
- Mould-resistant exterior gypsum panel.
- Weather-resistant for up to six months.
- Stock:
Huber Advantech® or L-P TopNotch 450 Series OSB Underlayment
- High-performance structural flooring panel.
- Engineered to provide more water resistance and stability than plywood and conventional OSB.
- Stock:
- 3/4" (23/32) 4x8 T&G/LE 24”*
*Maximum floor span
- 3/4" (23/32) 4x8 T&G/LE 24”*
- Stock:
Oriented Strand Board (OSB)
- Ideal for roof and sidewall sheathing.
- Provides the required strength for uses where plywood of equal thickness is normally used.
*Maximum roof span/maximum floor span
Oriented Strand Board Underlayment
- Designed specifically for single layer floor construction.
- Tongue and grooved long edges.
- Stock:
*Maximum floor span
Plywood Underlayment
- Southern Pine.
- Made with exterior glue.
- Faces plugged and touch sanded.
- Tongue and groove long edges.
- Stock:
*Maximum floor span
Polystyrene Foam Sheathing
- Closed-cell structure minimizes water absorption and maintains high performance insulating quality.
- Smooth skin faces.
- R value = 5.0 per inch at 75° F.
- Stock:
- 1/2" 4x8
- 3/4” 2x8
- 1” 4x8 SSE (square edges, scored so that it can be easily snapped into two 2'x8' pieces)
- 1” 4x8 (tongue & groove edges)
- 1-1/2” 2x8 (slotted long edges for 1x3 furring strips)
- 2” 4x8 SSE (square edges, scored so that it can be easily snapped into two 2'x8' pieces)
- 3” 4x8 SSE (square edges, scored so that it can be easily snapped into two 2'x8' pieces)
- Stock:
Thermax™ Foam Sheathing
- Glass-fiber-reinforced polyisocyanurate foam core with solid aluminum facers on both sides.
- Can be installed exposed to the interior without a thermal barrier.
- Requires no special tools or materials for installation.
- Backed with a 15-year limited thermal warranty.


