Top Reasons You Want These Flashings in Your Corner

Flashco corner flashings
April 27, 2022 at 6:00 a.m.

By FlashCo. 

Reduce installation costs and time with these Universal Corner flashings designed to fit better than a field flashing. 

FlashCo® FlashAccessory Molded TPO Universal Corner Flashings are ideal for your next roofing detail project. Contractors can quickly flash interior or exterior corners by cutting at the top or bottom of the 3” riser portion. 

Each FlashAccessory Molded Corner is designed to use on single-ply roofing systems, comprising of 60-mil, injection-grade, weldable TPO. 


Here’s what to expect during the installation process. Your contractor will: 

  1. Prepare all welding surfaces by cleaning with TPO membrane cleaner.  

  2. Center the corner where both vertical faces meet and intersect the roof deck. 

  3. Begin welding at the centermost point, progressively working outwards. 

  4. Probe the edge of the membrane on all three faces. 


  • Saves up to 60% of labor compared to field fabrication. 

  • Better fit and more uniform appearance than field flashing. 

  • Do more with less – one part with inside and outside corner capabilities. 

  • Contractors get off the roof sooner. 

  • Reduced install costs. 

Have a question? AskARoofer.   

Find your local roofing contractor in the RoofersCoffeeShop® Contractor Directory. 

Original article source: FlashCo  

About FlashCo 

Founded in Sonoma County, California, FlashCo has grown to be one of the largest manufacturers of roof flashings and accessories in North America with seven plant locations in the U.S. For over 20 years, FlashCo has been a trusted source for dependable pre-fabricated accessories for the immediate needs of roofing contractors, distributors, and industry-leading roofing material manufacturers. A reliable partner who delivers quality products with responsive support, FlashCo prides itself in delivering a timely and dependable experience. 

Trusted by major manufacturers for use as part of full system warranties, FlashCo manufactures standard and custom flashings for roofing contractors installing TPO, PVC, BUR, shingle, and clay tile roofing systems. Contractors can find FlashCo products at hundreds of roofing supply distributors located throughout the U.S. and Canada. 

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