Flexim Roof Mortar – The Smart Choice for Reclaimed Tile Repairs
Flexim is a pre-mixed, storm-resistant roofing adhesive that remains permanently flexible. Since its introduction to the U.S. market in 1997, it has earned a strong reputation as a reliable, high-performance alternative to traditional cement mortar.
Ready To Use Right Out Of The Box
Available Colors - $160 per box
Black
Dark Brown
Gray
Green ($10 Extra)
Light Brown \ Rust
Terra Cotta - Out of Stock
Key Features
- Box Size: 20" x 18" x 4"
- Strip Size: 20" x 4" x 1"
- Weight Per Box 20 lbs
- Estimated Coverage: 15' to 20' of hip and ridge, both sides
- Shipping: Up to 15 boxes via UPS. More than 15 LTL
- Made in The Netherlands
- Flexim International BV Established 1985
We ship Flexim straight to your door from our warehouse
via UPS—anywhere in the U.S. or Canada
(sorry, we can't ship to Florida due to local testing requirement).
Contact Us
To Get A Quote
Some of the Benefits of Flexim Roof Mortar \ Putty
Flexim Roof Mortar for Repairs & Reclaimed Tile Roofs
Perfect for Tile Repairs and Restoration
Flexim Roof Mortar is ideal for repairing, resealing, or maintaining reclaimed and aged tile roofs. Whether you’re fixing loose ridge caps, re-bedding hips, or sealing gaps between reclaimed tiles, Flexim provides a strong, flexible bond without the need for traditional mortar mixing.
No Mess, No Mixing
Delivered in ready-to-use strips, Flexim eliminates the hassle of sand and cement. Just apply directly from the package — no tools, no water, and no cleanup required. Any unused strips can be stored for future repairs.
Compatible with Reclaimed Clay and Concrete Tiles
Flexim adheres securely to both reclaimed and new tiles, making it perfect for restoration work. It’s also suitable for handmade, weathered, or irregularly shaped tiles, where conventional mortar often fails to create a tight seal.
Resists Cracking and Movement
Because it stays permanently flexible, Flexim won’t crack, shrink, or separate — even as older roofs expand, shift, or settle over time. This helps extend the lifespan of reclaimed tiles and protects historic rooflines from further damage.
Instant Waterproof and Pest-Resistant
Once applied, Flexim forms an immediate waterproof seal and helps keep out birds, rodents, and insects that often nest beneath loose tiles. The outer surface hardens, while the interior remains soft enough to self-seal if disturbed.
Eco-Friendly and Sustainable
Made with natural linseed oil, Flexim is a non-toxic, sustainable alternative to cement mortar — aligning perfectly with the spirit of reusing reclaimed materials and preserving historic structures.
About Flexim International BV
About the Manufacturer
Founded in 1985, Flexim International BV of Heerhugowaard, Netherlands, is the original manufacturer of Flexim Roof Mortar—a trusted solution used by roofing professionals and restoration experts worldwide.
For nearly four decades, Flexim has been relied upon for roof maintenance, historic renovation, and repair projects where traditional sand-and-cement mortar isn’t practical. Its long-lasting performance and eco-friendly formulation make it especially valuable for reclaimed tile roofs and heritage structures that demand both strength and flexibility.
Made primarily from natural linseed oil, Flexim offers a sustainable, ready-to-use alternative to conventional mortar—eliminating the need for mixing, curing, or heavy cleanup. As of 2022, Flexim has been installed on over 4 million roofs worldwide. All production, packaging, and international shipping are handled with care at the company’s Dutch headquarters, ensuring consistent quality and reliability across every project.
Flexim Roof Mortar FAQ
Have questions about Flexim? We’ve got answers.
Perfect for Tile Repairs and Restoration
Flexim Roof Mortar is ideal for repairing, resealing, or maintaining reclaimed and aged tile roofs. Whether you’re fixing loose ridge caps, re-bedding hips, or sealing gaps between reclaimed tiles, Flexim provides a strong, flexible bond without the need for traditional mortar mixing.
No Mess, No Mixing
Delivered in ready-to-use strips, Flexim eliminates the hassle of sand and cement. Just apply directly from the package — no tools, no water, and no cleanup required. Any unused strips can be stored for future repairs.
Compatible with Reclaimed Clay and Concrete Tiles
Flexim adheres securely to both reclaimed and new tiles, making it perfect for restoration work. It’s also suitable for handmade, weathered, or irregularly shaped tiles, where conventional mortar often fails to create a tight seal.
Resists Cracking and Movement
Because it stays permanently flexible, Flexim won’t crack, shrink, or separate — even as older roofs expand, shift, or settle over time. This helps extend the lifespan of reclaimed tiles and protects historic rooflines from further damage.
Instant Waterproof and Pest-Resistant
Once applied, Flexim forms an immediate waterproof seal and helps keep out birds, rodents, and insects that often nest beneath loose tiles. The outer surface hardens, while the interior remains soft enough to self-seal if disturbed.
Eco-Friendly and Sustainable
Made with natural linseed oil, Flexim is a non-toxic, sustainable alternative to cement mortar — aligning perfectly with the spirit of reusing reclaimed materials and preserving historic structures.