LR 420Casement Window
An impact-rated outward-opening casement window developed for controlled ventilation, strong sealing and dependable coastal performance.
- Wide outward opening supports maximum controlled ventilation
- Triple-gasket construction improves air and water sealing
- Multi-point locking enhances security and structural stability
Fresh air. Maximum control.
LR 420 combines wide casement opening, triple-gasket sealing, secure locking and a slim contemporary profile.
Wide Casement Opening
The outward-opening sash provides generous ventilation without compromising clear exterior views.
Triple-Gasket Sealing
Three sealing levels improve water resistance, air tightness and overall weather performance.
Multi-Point Locking
Integrated locking hardware supports security, structural stability and dependable daily operation.
Slim Architectural Profile
Minimal aluminum sightlines maximize glass visibility and complement contemporary façades.
LR 420 Technical Details
TECHNICAL SPECIFICATIONS
- Frame Depth3″
- Jamb Height3 7/16″
- Maximum Size42″ × 90″
- Maximum Design Pressure±62 / TI3
- SealingTriple-Gasket System
- System DetailsFlush Frame Adaptor / Clipless Mull
- OperationOperator Handle / Multi-Point Lock
- Glass Options7/16″ / 9/16″ / 15/16″
Final dimensions, glazing composition and available configurations should be confirmed according to project requirements and the applicable Florida Product Approval documentation.
Technical Resource
LR 420 Installation Guide
Review the recommended installation sequence, preparation requirements and key application details before beginning installation.
Engineered to resist impact.
LR 420 combines controlled casement ventilation with impact-rated construction for residential projects in demanding coastal environments. The applicable Florida Product Approval document is available for technical review.
Impact-Rated Glass Options
Laminated and insulated laminated configurations support impact protection and project-specific performance requirements.
7/16″ Laminated
Available with either a PVB or SGP interlayer for impact-rated protection.
PVB or SGP9/16″ Laminated
Available with either a PVB or SGP interlayer for added strength and performance.
PVB or SGP15/16″ Insulated Laminated
Insulated laminated construction for improved comfort and project-specific performance.
Insulated laminatedGlass composition, coatings and interlayers should be selected according to project requirements and applicable approval documentation. Contact our team for configuration guidance.
Architectural details, clearly defined.
Colonial Configurations
Decorative muntin layouts are available to coordinate the casement window with different residential styles.
Glazing Beads
Square and ogee profile options provide a more tailored architectural expression.
Specify LR 420 for your next casement-window project.
Connect with our team for sizing, glazing, finish, hardware and configuration guidance—or learn how to work with Linea Rossa Design as a dealer.