If you have a tiled roof and have been told it needs repointing Vs rebedding, it is worth understanding what those terms actually mean.
Although roof repointing and roof rebedding are often mentioned together, they are not the same type of work. They address different parts of the ridge and hip system, and knowing the difference can help you understand what work your roof may actually need.
In simple terms, bedding is the mortar foundation underneath the ridge or hip tiles, while pointing is the visible finishing layer applied over that bedding.
If the pointing has deteriorated but the bedding underneath is still sound, repointing may be enough. If the bedding has also failed, the ridge or hip tiles may need to be lifted, the failed bedding removed, and new bedding installed before the tiles are repointed.
The important thing is not to assume that cracked pointing automatically means the entire ridge needs rebedding. The condition of the underlying bedding needs to be assessed first.
What Is Roof Bedding?
Roof bedding is the mortar layer underneath ridge and hip tiles on a tiled roof.
Its job is to provide a solid base for the ridge or hip tiles and help hold them securely in position. When the bedding is in good condition, the tiles should sit firmly and remain properly supported.
Over time, however, mortar bedding can deteriorate. Canberra roofs are exposed to changing temperatures, frost, rain, strong winds and other weather conditions, and these conditions can contribute to deterioration over the life of a tiled roof.
Bedding can eventually:
- Crack or crumble
- Lose its bond
- Become loose beneath the tiles
- Break away in sections
- Leave gaps underneath ridge or hip tiles
- Stop providing adequate support
When the bedding has failed, simply applying new pointing over the top does not address the underlying problem.
What Is Roof Pointing?
Roof pointing is the visible finishing layer applied over the bedding, generally along the edges of ridge and hip tiles.
Its main purpose is to seal and protect the joint from water penetration and weather exposure while providing a finished appearance.
Pointing can deteriorate independently of the bedding underneath. It may become cracked, powdery, loose or start separating while the underlying bedding remains firm and well bonded.
When this happens, the roof may only require repointing rather than rebedding.
A simple way to remember the difference is:
- Bedding = the foundation underneath the ridge or hip tile.
- Pointing = the protective finish over that bedding.
This distinction is important when assessing an older tiled roof because the correct repair depends on which part has actually failed.
Roof Repointing vs Rebedding: What Is the Difference?
The easiest way to understand the difference is to think of bedding as the supporting base and pointing as the finishing layer.
Roof Repointing
Repointing involves removing deteriorated pointing and applying new pointing where the underlying bedding remains sound.
It may be appropriate when:
- The pointing is cracked or weathered.
- Sections of pointing are loose or missing.
- The mortar joints have started separating.
- Ridge and hip tiles remain firm and stable.
- The existing bedding is still well bonded.
- There is no significant movement of the ridge or hip tiles.
In this situation, removing and replacing the pointing can restore the finished joint without unnecessarily disturbing sound bedding.
Roof Rebedding
Rebedding is more extensive.
It involves lifting the affected ridge or hip tiles, removing the failed bedding, preparing the area and installing new bedding before the tiles are reinstated and repointed.
Rebedding may be necessary when:
- Ridge or hip tiles are loose or unstable.
- The bedding has become crumbly or detached.
- The mortar underneath has lost its bond.
- Sections of bedding are missing.
- There are significant voids underneath the tiles.
- Ridge or hip tiles have shifted or dropped.
- Previous pointing repairs have repeatedly failed because the bedding underneath was unstable.
In these circumstances, the problem is not simply the visible pointing. The supporting mortar underneath has also deteriorated.
Does Cracked Roof Pointing Mean You Need Rebedding?
Not necessarily.
Cracked or deteriorated pointing is one reason a tiled roof may require attention, but it does not automatically mean the bedding underneath has failed.
This is an important distinction because homeowners can sometimes assume that any damaged ridge pointing means the entire ridge needs to be lifted and rebedded.
If the ridge or hip tiles are still firmly supported and the bedding remains intact and well bonded, repointing may be sufficient.
Signs that may indicate repointing only include:
- Cracked or powdery pointing
- Small gaps in the finished mortar joints
- Missing sections of pointing
- Weathered or deteriorated exposed pointing
- Ridge and hip tiles that remain firmly seated
- Bedding that remains intact and bonded
- No substantial movement of the ridge or hip tiles
The condition of the bedding needs to be assessed before deciding whether rebedding is necessary.
What Are the Signs That Roof Bedding Has Failed?
The main indication is that the mortar bedding is no longer providing a solid and stable base for the ridge or hip tiles.
Some signs can be visible, while others become clearer when the existing pointing and affected tiles are properly inspected.
Common indications of failed bedding include:
- Ridge or hip tiles are loose or rocking.
- Tiles can move when professionally checked.
- The mortar underneath has become crumbly.
- Bedding has cracked or detached from the roof surface.
- Sections of bedding are visibly missing.
- There are noticeable gaps underneath the ridge or hip tiles.
- Ridge or hip tiles have shifted or dropped.
- Previous pointing repairs continue to crack or separate.
- Water is entering through areas where the bedding has separated.
- The bedding has lost its bond or strength when exposed during inspection.
If the bedding has lost its structural integrity, simply replacing the visible pointing does not properly address the problem.
Why You Shouldn’t Point Over Failed Bedding
One of the common problems with treating deteriorated pointing without checking the bedding underneath is that the roof can look repaired without the underlying issue actually being fixed.
Fresh pointing applied over unstable or deteriorated bedding may not provide a durable result.
Several problems can occur:
- New pointing can crack or detach prematurely.
- Ridge and hip tiles can remain loose.
- Water can continue entering through gaps underneath the tiles.
- The underlying roof components can remain exposed to moisture.
- Repeated patch repairs can increase the overall cost of maintenance.
- Loose ridge or hip tiles may become displaced during severe weather.
- New material may have poor adhesion if it is applied over loose, contaminated or deteriorated material.
In simple terms, pointing is a finish; it cannot reliably compensate for bedding that has already failed.
If the foundation underneath is unstable, putting a new finishing layer over it does not solve the underlying problem.
Can You Repoint a Roof Without Rebedding?
Yes, where the existing bedding is still sound and the problem is limited to the pointing.
This is why a proper assessment matters.
If the ridge or hip tiles are secure, the bedding remains well bonded and only the exposed pointing has deteriorated, disturbing the bedding unnecessarily may not be appropriate.
On the other hand, if the bedding has failed, repointing alone is unlikely to provide a reliable long-term repair.
The appropriate approach is therefore to determine what has actually failed before deciding what work is required.
This is also why the price of repointing can vary considerably between roofs. The scope may be limited to deteriorated pointing, or the inspection may identify bedding, tile, flashing or other issues that require additional work. You can read more about the factors affecting the price in our guide to roof repointing cost in Canberra.
What Happens During Roof Rebedding and Repointing?
Where both rebedding and repointing are required, the work generally involves addressing the underlying bedding before completing the visible finish.
The exact scope depends on the condition of the roof, but the process can include:
Inspecting the Ridge and Hip Areas
The first step is to assess the condition and stability of the ridge and hip tiles.
This includes looking for loose tiles, deteriorated mortar, gaps, movement and previous repairs.
Removing Failed Materials
Where the bedding has failed, the affected ridge or hip tiles may need to be lifted so the deteriorated mortar can be removed.
Simply covering failed material with new mortar does not resolve the underlying issue.
Installing New Bedding
Once the failed bedding has been removed and the area properly prepared, new bedding can be installed to provide a stable base for the ridge or hip tiles.
Reinstating the Ridge or Hip Tiles
The tiles are then positioned correctly and secured on the new bedding.
Any damaged ridge or hip tiles identified during the work may also need to be replaced.
Applying New Pointing
Once the bedding has been properly addressed and the tiles are secure, the visible pointing can be completed.
This provides the finished weather-resistant joint around the ridge and hip tiles.
Does Rebedding and Repointing Fix the Whole Roof?
No.
Rebedding and repointing specifically address the ridge and hip areas. A tiled roof can have other problems that require attention elsewhere.
During a proper roof assessment, I would also consider the condition of:
- Roof tiles
- Valleys
- Flashings
- Chimneys
- Skylights and other penetrations
- Underlay or sarking where applicable
- Gutters and downpipes
- Roof drainage
- Timber battens and supporting components
- Areas showing evidence of water ingress
- Previous repairs and alterations
For example, if the roof has cracked tiles, deteriorated valleys and damaged flashing as well as failed ridge bedding, completing the ridge work alone would not address the whole roof problem.
This is why I believe a tiled roof should be assessed as a complete system, rather than focusing only on the most obvious visible defect.
When Are Rebedding and Repointing Part of a Larger Roof Restoration?
There are situations where the ridge and hip areas need rebedding and repointing but the roof requires more extensive restoration work.
A larger restoration may be considered when an inspection identifies multiple problems such as:
- Widespread cracked or broken tiles
- Significant tile deterioration
- Deteriorated flashing
- Damaged valley systems
- Poor roof drainage
- Damaged underlay or sarking
- Deteriorated timber battens or supporting components
- Persistent water ingress
- Multiple areas requiring repair
- Previous repairs or alterations that have compromised the roof system
In those circumstances, rebedding and repointing may form one part of the overall restoration rather than being the complete solution.
The objective should be to identify the actual condition of the roof and address the components that are failing, rather than assuming that one particular repair will solve every problem.
For homeowners considering whether an older tiled roof is still suitable for restoration, our guide on whether it is worth restoring an old tile roof in Canberra explains the broader factors to consider.
How Canberra Weather Can Affect Tiled Roofs
Canberra roofs experience a wide range of weather conditions throughout the year.
Cold winters, frost, temperature changes, rain, strong winds, hail and hot summer conditions can all contribute to wear over time.
These conditions can affect different components of a tiled roof in different ways.
For example, mortar bedding and pointing can deteriorate gradually, while tiles may crack or become displaced. Flashings and valleys can also deteriorate independently of the ridge system.
This is one reason an older roof should not be assessed based solely on how the pointing looks from the ground.
A roof can appear relatively good from below while having loose ridge tiles, deteriorated bedding, cracked tiles or problems with flashings and drainage.
Common Mistakes Homeowners Make With Roof Repointing
There are several mistakes I would avoid when deciding whether a tiled roof needs repointing or rebedding.
Assuming Cracked Pointing Means the Bedding Has Failed
Cracked pointing does not automatically mean rebedding is required.
The underlying bedding should be assessed before deciding on the scope of work.
Repointing Without Checking the Bedding
If the bedding has already failed, replacing the visible pointing without addressing it may only provide a temporary-looking repair.
Focusing Only on the Ridge
The ridge may be the most obvious area of deterioration, but the rest of the roof should also be checked for related or separate problems.
Choosing Work Based Only on the Cheapest Quote
Two roofing quotes may describe apparently similar work while covering different scopes.
It is worth understanding whether the quote includes inspection, removal of failed materials, replacement of damaged tiles, rebedding, repointing and any other necessary repairs.
Assuming an Old Roof Automatically Needs Replacement
Age is one factor, but it is not the only factor.
A roof with ageing pointing may still have serviceable tiles and a sound underlying structure. In another case, widespread deterioration may mean that restoration is no longer the most practical option.
The condition of the roof should guide the recommendation.
How a Roofer Determines Whether You Need Repointing or Rebedding
The decision should be based on the condition of the roof rather than simply the appearance of the mortar.
I would generally look at:
- Whether the ridge and hip tiles are stable
- The condition of the visible pointing
- The condition and bond of the underlying bedding
- Whether the bedding has separated from the roof surface
- Whether there are gaps or voids beneath the tiles
- The condition of the ridge and hip tiles themselves
- Evidence of previous repairs
- Signs of water entry
- The condition of other roof components
The aim is to identify whether the problem is limited to the finishing layer or whether the underlying support has also failed.
This approach can help avoid both unnecessary work and inadequate repairs.
Repointing vs Rebedding: Which One Does Your Roof Need?
There is no single answer for every tiled roof.
In general:
Repointing may be appropriate when:
- Pointing has deteriorated.
- Bedding remains sound.
- Ridge and hip tiles are stable.
- There is no significant movement or separation underneath.
Rebedding and repointing may be appropriate when:
- Bedding has failed.
- Ridge or hip tiles are loose.
- Mortar underneath has lost its bond.
- There are significant gaps or missing sections.
- Previous pointing repairs have failed because the underlying bedding was unstable.
A broader roof restoration may be appropriate when:
- Multiple roof components have deteriorated.
- Tiles require widespread repair or replacement.
- Valleys or flashings are failing.
- Drainage is problematic.
- There are persistent leaks or water ingress.
- Other supporting components require attention.
The correct scope should be determined after assessing the actual condition of the roof.
How Regular Roof Maintenance Can Help
Regular maintenance can help identify deterioration before a relatively small problem develops into a more extensive roofing issue.
For Canberra homeowners, this can include checking for:
- Cracked or displaced tiles
- Deteriorated ridge and hip pointing
- Loose ridge caps
- Blocked gutters and valleys
- Damaged flashings
- Signs of water entry
- Vegetation or debris accumulation
- Damage following severe weather
Our roof maintenance checklist for Canberra homeowners provides a broader guide to the areas homeowners can monitor as part of ongoing roof maintenance.
Homeowners should also avoid walking on tiled roofs without the appropriate equipment and experience, as tiles can be damaged if they are walked on incorrectly.
When Should You Have Your Roof Assessed?
If you notice cracked pointing, loose ridge caps, missing mortar or movement around the ridge and hip areas, it is worth having the roof properly assessed.
An inspection can help determine whether the issue is:
- Pointing deterioration
- Failed bedding
- Damaged tiles
- Flashing or valley problems
- A drainage issue
- Or part of a broader roof restoration requirement
If you are unsure what work your roof actually needs, a professional assessment is generally more useful than trying to determine the scope based only on what is visible from ground level.
Agile Roofing provides roofing services in Canberra for homeowners needing roof repairs, restoration and other roofing work.
FAQs about Roof Repointing and Rebedding
Roof bedding is the mortar layer underneath ridge and hip tiles that provides their supporting base. Roof pointing is the visible finishing layer applied over the bedding to seal and protect the joint from weather exposure.
Not necessarily. If the bedding remains sound and the ridge or hip tiles are stable, repointing may be sufficient. If the bedding has also failed, rebedding and repointing may both be required.
Signs can include loose or rocking ridge tiles, crumbly or detached mortar, missing sections of bedding, gaps underneath ridge or hip tiles, shifted tiles and repeated failure of previous pointing repairs.
Yes. Repointing can be appropriate where the existing bedding remains sound and the deterioration is limited to the visible pointing.
The new pointing may crack or detach prematurely because the unstable bedding underneath has not been repaired. Ridge and hip tiles may also remain loose, and water can continue entering through gaps.
Yes. Rebedding involves addressing the mortar foundation underneath the ridge or hip tiles, while repointing generally addresses the visible finishing layer.
No. Age alone does not determine whether rebedding is required. The condition, stability and bond of the existing bedding should be assessed.
No. Rebedding and repointing primarily address ridge and hip areas. Roof restoration can involve a much broader range of work, including tile repairs, flashing, valleys, drainage and other roof components.
The cost depends on factors such as the amount of ridge and hip work, the condition of the existing bedding, access, roof design and whether additional repairs are required. For more information, see our guide to roof repointing cost in Canberra.
It depends on the condition of the complete roof system. A roof with sound tiles and structure may be suitable for restoration, while widespread deterioration, structural problems or extensive component failure may make replacement more appropriate. Age alone should not determine the decision.
Final Thoughts
Roof repointing and rebedding are related but different types of work.
Repointing addresses the visible finishing layer, while rebedding addresses the mortar foundation underneath the ridge and hip tiles.
If the bedding is still sound but the pointing has deteriorated, repointing may be all that is required. If the bedding has failed and the ridge or hip tiles are no longer properly supported, rebedding followed by repointing may be necessary.
The important part is to identify what has actually failed before deciding how much work is required.
In my experience, the most sensible approach is to inspect the roof first, explain what has deteriorated, and then recommend the appropriate level of work. Sometimes that may be straightforward repointing. In other cases, rebedding and repointing may form part of a larger roof restoration.
The goal should be to properly address the underlying roofing problem without recommending more work than the condition of the roof requires.