FLEXIM ROOF MORTAR

Roofing Made Simple

Ready-to-use, flexible roof mortar for ridge, hip, and roof tile repairs.

No mixing. Short curing time. Professional results.

Roofer positioning a clay ridge tile on a terracotta roof during Flexim Roof Putty installation.
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How Flexim Works
Icon representing waterproof
Flexim does not require any mixing on site. It's ready to go out of the box
Flexim works in a huge temperature range

Immediately Weatherproof

Ready to Use

Stays Flexible

What Are You Trying to Repair?

Cracked Ridge Mortar - Old cement mortar cracking or breaking away from your ridge tiles?

Loose Ridge or Hip Tiles - Repair and secure loose ridge and hip tiles without mixing traditional mortar.

Installing New Ridge or Hip Tiles
Use a ready-to-use flexible mortar for new clay or concrete roof tile installations.

Gaps Around Roof Tiles
Fill gaps around ridge and hip tiles while maintaining a weatherproof finish.

Flexim Roof Mortar installed on Spanish Hip Tiles

Lightweight and Easy to Handle

Flexim Roof Mortar used on Gable Tiles

Permanently Flexibile

Red clay roof tiles and ridge caps with a light covering of snow in winter. Flexim roof mortar works great in all weather conditions

For All Climates

Flexim Mortar vs. Traditional Cement Mortar

Traditional Sand & Cement

  • Requires on-site mixing

  • Becomes rigid once cured

  • Can crack or shrink over time

  • Heavier and more labor intensive

Flexim Roof Mortar (Flexim Putty)

  • Ready to use — no mixing

  • Remains flexible

  • Resists cracking

  • Instantly waterproof

  • Lightweight and easier to handle

View Colors & Pricing

Colors and Pricing

Flexim is available in multiple colors to complement clay roof tiles and architectural styles.

All boxes ship via UPS Ground across the United States and Canada.

Available Colors: Black, Gray, Dark Brown, Rust/Light Brown, Terra Cotta & Green

Sample of Black Flexim

Black

Sample of Gray Flexim

Gray

Sample of Dark Brown Flexim

Dark Brown

Sample of Rust Light Brown Flexim

Rust / Light Brown

Sample of Terra Cotta Flexim mortar

Terra Cotta

Sample of green flexim roof mortar

Green

Standard Colors

$160 per box plus UPS Ground shipping

Specialty Colors

$170 per box - Green Only

Each box contains 10 individually wrapped strips that are ready to use.

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an open box of Flexim showing the 10 individually wrapped sticks

Simple Installation in 3 Steps

1. Unpack

Remove old mortar and debris. Ensure the surface is clean.

Flexim installed on a ridge line before attaching the roof tile

2. Apply

Position the Flexim strips along the ridge or hip.

Flexim used to install a ridge tile

3. Secure

Press the ridge tile firmly into place and smooth the excess.

View Detailed Installation Guide

Technical & Performance Details

Performance

  • Instantly waterproof

  • Permanently flexible

  • Resistant to cracking & wind uplift

  • Suitable from -13°F to +140°F

Shield with water droplet and checkmark representing waterproof roof protection.

Coverage

  • 15–20 linear feet of ridge or hip per box (both sides)

  • Includes 10 strips
    (20” x 4” x 1”)

Stacked strips representing Flexim Roof Mortar packaging and coverage.

Installation

  • Ready to use

  • Lightweight

  • For ridges and hips

Crossed tools representing roof ridge and hip installation.

Environmental & Warranty

  • Natural linseed oil

  • No harmful ingredients

  • Limited warranty

Two leaves representing the natural linseed oil used in Flexim Roof Mortar.
View technical specs

Ready to Order Flexim Roof Mortar?

Tell us your ZIP or postal code, preferred color, and quantity. We’ll confirm pricing and UPS shipping

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Trusted on clay roof installations since 1997.