![Series 90 InsulKor Feature](https://www.lbpwindows.com/wp-content/uploads/2016/05/series-90-insulkor.jpg)
Series 90 InsulKor™ Technology
InsulKor™ technology is a system of sash and frame enhancements that dramatically improves the performance of Series 90 windows. Our exclusive InsulKor fiberglass-enriched polyurethane sash reinforcement yields better energy efficiency while maintaining the structural integrity of traditional metal reinforcement.
![Series 90 Special Features](https://www.lbpwindows.com/wp-content/uploads/2016/05/series-90-features.jpg)
Series 90 Special Features
- Optional InsulKor multi-cavity foam-filled frame injections.
- Super Spacer® sealant system (standard with Series 90 triple-pane glass options).
- Triple-pane, R-5 compliant glass.
![Lansing Warranty Feature Image](https://www.lbpwindows.com/wp-content/uploads/2017/01/warranty-feature-img-round.jpg)
The Lansing Warranty
Every Lansing window and patio door is backed by a limited lifetime warranty on vinyl, glass and all working parts. Each product is individually registered with a product identification number, making ordering replacement parts throughout the warranty period easy and efficient.
![Lansing Care and Maintenance Guide](https://www.lbpwindows.com/wp-content/uploads/2016/05/care-guide-feature-img-round.jpg)
Lansing Product Care
Lansing windows and doors are designed for easy care and maintenance. Click the button below to download Lansing’s window and door care and maintenance guide.