The RainBuster LEAK-FREE Window Installation System is a comprehensive leak preventing solution for window installers. It consists of an easy to use catalog of installation procedures and products that can be relied upon for all installation projects. The system combines RainBuster 450 Window & Door Installation Sealant with RainBuster Flashing and RainBuster Installation Procedures. The LEAK-FREE System comes with an industry leading thirty year parts & labor warranty.
View RainBuster LEAK-FREE Window Installation System Procedures
Installation Procedure Catalog Menu (PDF)
View RainBuster Leak Free System Warranty (PDF)
The system consists of the following products:
RainBuster 405
RainBuster 405 Premium Nail on Flashing is an economical plastic-based flashing material that is ideal for flashing window & door perimeters.
Learn More about RainBuster 405
RainBuster 410
RainBuster 410 High Performance Nail On Flashing is our best plastic-based flashing material. Its ultra-heavy duty polyolefin construction provides superior leak prevention. It is ideal for flashing window & door perimeters.
Learn More about RainBuster 410
RainBuster 415
RainBuster 415 Self-Adhered Flashing Membrane is an ultra-high performance flashing material. It is constructed of a high quality rubberized asphalt adhesive and a durable cross-laminated permanent facer. RainBuster 415 is an outstanding choice for flashing window & door perimeters, recessed windows, sill pans, and pot shelves.
Learn More about RainBuster 415
RainBuster 420
RainBuster 420 Nail On Flashing Membrane is an ultra-high performance flashing material. Its unique patented construction allows for easy nail on installation and provides a rubberized asphalt core for self-sealing around penetrating fasteners. It is ideal for window & door installation. When used as part of the
Learn More about RainBuster 420
RainBuster 425
RainBuster 425 Flashing Corners are an effective solution for flashing challenging turns, corners, and transitions in construction. They are proven to prevent leaks in window & door sill pans, recessed windows, pot shelves, parapets, columns, and short/pony walls.
Learn More about RainBuster 425
RainBuster 450
RainBuster 450 Window & Door Sealant is an ultra-high grade polyurethane designed to prevent water intrusion in the most demanding conditions. It is a part of the RainBuster LEAK-FREE Window Installation System and is compatible with RainBuster flashing.
RainBuster 450 uses Green, closed system curing technology to earn LEED and Green Build Credits. Its environmentally friendly formulation is V.O.C. compliant under CARB and AQMD.