LP® TopNotch® High Performance Sub-Flooring
When you work in severe weather conditions or build custom homes, you need extra help. That means LP’s TopNotch High Performance Sub-Flooring.
Like the original TopNotch, TopNotch HP uses patented vertical notches to quickly drain away surface water, but it also features our most advanced formula to reduce edge swell, increase moisture resistance and improve overall performance.
The higher-density TopNotch High Performance provides superior stiffness and strength, and it’s backed by an industry leading 200-day, No-Sand Warranty and a 50-year transferable limited warranty.
When you want the best, nothing less than LP TopNotch High Performance Sub-Flooring will do.