Difference between Roof Rebedding & Pointing

Rebedding vs Repointing

Rebedding vs Pointing Tiles: What's the Difference?

Below is a comparison table highlighting the key differences between roof rebedding and roof pointing, two essential components of tiled roof maintenance.

Feature	Roof Rebedding	Roof Pointing
Definition	The process of removing and replacing the mortar beneath ridge tiles.	The application of a flexible compound over the edges of ridge tiles and joints.
Purpose	To provide a strong foundation that holds ridge tiles firmly in place.	To seal gaps and protect the roof from water, wind, and dust.
When It's Needed	When existing bedding mortar is cracked, loose, or damaged.	After rebedding or as part of regular roof maintenance (usually every 8–10 years).
Materials Used	Cement mortar (sand and cement mix).	Flexible pointing compound (polymer or acrylic-based).
Flexibility	Rigid once dry — not designed to handle movement.	Remains flexible after drying, allowing for roof movement.
Weather Resistance	Provides structural support but may degrade over time.	Offers superior weather protection and waterproof sealing.
Visual Impact	Restores alignment and base of ridge tiles.	Gives a smooth, clean finish to the tile edges and joints.
Role in Roof Life	Structural integrity and tile positioning.	Waterproofing, sealing, and extending roof lifespan.

The terms roof rebedding and roof pointing refer to two essential components of tiled roof maintenance. Although often confused, they serve different purposes in the roof repair process. Understanding the distinction between them is key to maintaining a durable, weather-resistant roof.

Roof rebedding is the process of removing old, deteriorated mortar beneath ridge tiles and replacing it with fresh mortar to create a solid foundation. This helps keep the tiles firmly in place and prevents them from shifting or becoming loose over time.

Roof pointing, on the other hand, involves applying a flexible, weatherproof compound to the edges and joints of the ridge tiles. This sealant protects against water penetration, improves the roof’s appearance, and extends its lifespan.

Together, rebedding and pointing work hand in hand to strengthen your roof’s structure and shield it from the elements.

What is Roof Bedding?

Roof bedding involves the installation of mortar beneath the V-shaped tiles on the roof. It serves as the base layer that firmly holds the ridge caps and roof tiles together. Without proper bedding, the roof tiles lack a secure grip and may not stay in place effectively.

Advantages of Roof Bedding:

Long-lasting Waterproofing: Roof bedding ensures the roof remains resistant to water and weather conditions over an extended period.
Prevention of Water-Induced Mold: By providing a secure seal, bedding helps limit the infiltration of water, reducing the risk of mold growth.
Protection Against Wood Structure Weakening: Proper bedding acts as a barrier, preventing water damage that could compromise the strength of wooden structures in the ceiling.
Enhanced Roof Structure Strength: Through the bonding of materials, roof bedding contributes to the added strength of the roof’s overall structure.

What is Roof Pointing?

Roof pointing involves sealing the gaps between bricks or other building materials on a roof. A flexible substance called mortar is used to fill these gaps, preventing water from seeping in. This not only safeguards the roof from water damage but also adds strength to the entire structure. Pointing is like the protective shield for a roof. After roof bedding is done, a layer of mortar is applied on top to enhance both the look and durability of the roof. The roof bedding is vulnerable to developing cracks and with time, undergoes gradual deterioration. This mortar layer, visible around the roof tiles, fills gaps and cracks while securing the tiles. Signs like water leaks or loose tiles indicate it might be time for a pointing touchup.

Advantages of Roof Pointing

Aesthetic Enhancement: Pointing not only looks good but also adds a protective layer that keeps your roof visually appealing for years.
Weather and Water Protection: By layering mortar over the bedding, pointing shields your roof from harsh weather conditions and potential water damage.
Extended Roof Lifespan: A well-done-pointing job significantly prolongs your roof’s life, ensuring lasting comfort in your home.
Protection Against Australian Weather: Pointing offers defense against various Australian weather extremes, including storms, floods, heat waves, and bushfires.
Cost- Effective Roof Maintenance: Investing in pointing reduces long-term roof repair costs, making it a smart and economical choice.
Enhanced Roof Safety: Loose tiles are secured, improving the overall safety of your roof through a thorough pointing job.

Is your roof trying to tell you something?

Here are some signs that it might be time for rebedding or repointing:

Loose or Missing Mortar: Check for gaps between roof tiles. If you spot loose or missing mortar, it’s a red flag.
Visible Wear and Tear: Over time, weather and age can cause mortar to deteriorate. If you notice crumbling or eroded joints, it’s time to take action.
Leaks and Water Damage: Water stains on ceilings or walls may indicate compromised pointing or bedding. Addressing this promptly can prevent further damage.
Moss and Mold Growth: Excessive moss or mold on your roof could signal weakened mortar. Cleaning alone may not be enough; rebedding or repointing might be necessary.
Sagging Roofline: A sagging roofline can be a sign of structural issues, including problems with mortar. Don’t ignore this warning sign.
Interior Temperature Changes: If you notice a sudden change in indoor temperatures, it could be due to compromised mortar, allowing drafts.

Regular roof maintenance is the key to avoiding costly repairs. If you spot any of these signs, it’s advisable to consult with a professional roofing expert to assess and address the situation promptly.

What To Do If Your Bedding or Pointing Need Repair?

Addressing the maintenance of your roof bedding and pointing is essential to prevent major repairs during rough weather. While there’s no fixed timeline for this, consulting a roofing specialist for personalized advice is crucial.

Even with regular efforts, your roof might eventually need rebedding and repointing due to weather and time. The idea of these repairs might be concerning, but it’s of ultimate importance to keep your home dry and mold-free.

For expert roofing solutions, reach out to Rebel Roofing ACT. Ensure the longevity of your roof with our professional services catering to all the roof needs!

Get in Touch

Ready to discuss your roof rebedding and repointing needs? Reach out to Rebel Roofing ACT today. Our friendly team is here to answer questions, address concerns, and ensure your Canberra home gets the top-notch bedding and pointing services it deserves.