Terra Cotta Ridge Shingle Tile Roof
Light Brown Hip
Brown Ridge on Concrete
Terra Cotta Hips on a Pan & Cover Roof

Some of the Benefits of Flexim Roof Mortar

Saves Time and Costs
Tests have shown that Flexim Roof Mortar is up to 5 times faster and 50% cheaper to install than traditional mortar systems. There’s no need for any mixing and no washing out needed when the job’s been completed.

Flexim Roof Mortar is supplied in ready-to-use strips making it quick and simple to install. There’s no time-consuming mixing needed and any product not used can be saved until your next project.

Instantly Waterproof
Once installed, Flexim Roof Mortar is instantly water resistant. It is also extremely strong and will withstand all types of weather conditions and temperature extremes.

Permanently Flexible
Unlike traditional sand and cement mortar, Flexim remains flexible throughout its working life. It will not crack or delaminate, and is unaffected by the contraction / expansion of the roof or wind uplift on the tiles.

Health and safety is of paramount importance on any roofing project. The lightweight Flexim strips are easy to transport onto the roof without any heavy lifting, allowing installation to be carried out quickly and, above all, safely.

Choice of Colors
The aesthetics of the roof can be perfectly matched with one of Flexim’s dedicated colors. Available in Terra Cotta, Rust Red, Gray, Light Brown, Dark Brown and Black as standard. Blue and Green are available.  Flexim Roof Mortar is perfectly suited to a range of different roof tiles including concrete, clay and slate. Flexim can also be painted over with an exterior grade oil base paint.


Works Great At Almost Any Temperature
Flexim Roof Mortar can be installed from +140°F (+60°C) down to -13°F (-25°C)

Environmentally Friendly
Flexim Roof Putty contains no harmful ingredients and is formulated using natural linseed oil. It is therefore ideal for use during sustainable building construction.

Pest Control
Flexim is perfect for keeping rodents, birds, bats and other wildlife out of your roof or building. Flexim can be used to quickly fill gaps in buildings or large holes effectively sealing them up. Because Flexim hardens on the outside while staying soft on the inside this means that if an persistent critters try to get in, Flexim will reseal itself. Meaning repeated repairs would not be necessary. For pest control companies a box of Flexim can be easily stored in the shop or van for quick repairs. 

For more answers check out our FAQ or give us a call.

Flexim ships directly to you from a pick & pack warehouse, to anywhere in the United States or Canada.

Available Colors

Terra Cotta
Out of stock until Mid April


Rust/Light Brown

Low Stock -
more in April


Low Stock -
​more in April

Dark Brown
Low Stock -
​more in April

Low Stock -
​more in April

Check out the time lapse video to see just how much time, and therefore money, Flexim Roof Mortar can save you on your job.


Available Colors

The Contents of a box of Flexim

Rust/Light Brown, Gray, Terra Cotta & Black

Each Strip of Flexim is 20"x4"x1.5"

Rust/Light Brown & Terra Cotta

Black & Gray

You might also be interested in the latest addition to our lineup. The HyTile Roof Tile Cutter.

No Dust, No Danger, No Worries. 

The HyTile has been perfected over more than 4 decades and incorporates on going feedback from the roof tilers themselves - the men who actually use the equipment! This has enabled us to design a product which not only reduces back strain, but which gives roof tilers a more productive and longer working life.

Contact Adam for more information
888-725-2529 (Direct) or 888-678-6866 Ext 102 Adam@northernrooftiles.com

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