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Corner Flash™
GS Flex

Corner Flash™ GS Flex corner flashing is designed to improve the flashing system performance at the corners of window and doors. GS flex may be used to create Membrane Pan® systems for use under windows and doors. GS Flex is especially useful in any Transitional flashing condition. Parapet walls, columns, handrails, roof to wall conditions and recessed window soffit returns are all improved with GS Flex. Additionally, GS Flex may be used to flash recessed window installations. GS Flex is made from flexible PVC. It is injection molded allowing you to save money. GS Flex has dimensions of 4 inches in every direction. GS Flex has additional uses including flashing at soffit returns and parapet wall flashing.

For orders over 2000 pieces or to locate your local distributor of Corner Flash™ GS Flex, please call us at 800.310.7673.

Anywhere in California please visit your local White Cap Construction Supply.

In San Diego, please visit Sunshine Supply.

See a step-by-step installation

So How Does It Work?
View our detailed installation instructions

 

Door Pan Usage
GS Flex "A" piece is placed on top of the concrete slab with sealant. See detailed installation instructions

Door pan is created with Dupont Straight Flash and rear "L" metal. This pan is versatile and cost effective. These pans always fit the rough openings, always less money than metal pans, always effective in protecting the home from water intrusion. See detailed installation instructions


Window Usage
GS Flex "A" piece is designed to reinforce the flashing methods at outside or inside corners. It is especially useful in creating Membrane Pans® See detailed installation instructions

Alternate view of the GS Flex "A" piece. GS Flex improves overall flashing system performance. See detailed installation instructions

GS Flex "A" and "B" pieces are designed to fit together to reinforce the flashing at the most difficult areas of a recessed opening or other transitional flashing area. See detailed installation instructions

GS Flex "B" is designed to reinforce the flashing at inside or outside corners depending on their application. See detailed installation instructions


Parapet Wall Usage
Parapet walls and hand rails present special flashing challenges.

Start process by applying a high quality building paper.

Next, apply the GS Flex Corners. GS Flex "A" pieces are used as inside corners while the GS Flex "B" pieces are used as outside corners.
Water proof membrane is applied starting at the lowest area and moving upwards.

Notice the simple methods and cuts that are used.

No "Origami" cuts and folds; no butterfly strips are necessary.
These corners are beautifully flashed. They are very strong and durable as well.
 

Column Usage

Building paper is applied starting low and working high.
GS Flex "B" corners are applied on all four corners.

GS Flex "B" corners are durable and tough. They protect the outside corners from damage during the course of construction as well as effectively flash difficult areas.

Water proof membrane flashing is applied on top of the GS Flex corners.

This column looks great and is very water proof.

 
 

What are people saying about us?
TLS Laboratories recently helped Centex Homes resolve a large scale window flashing issue at one of our communities. His expert knowledge of windows and flashing systems identified the problem and they assisted in designing a repair that could be implemented with minimum impact on our homeowners. They are reliable, professional and service oriented. I am pleased to offer them a recommendation.
- Shawn Reed
Vice President, Construction Operations
Centex Homes
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