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Roof Replacement Perth Hills

1/7/2025

 
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BEFORE - Low Pitch Cement Tiled Roof
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AFTER - New Colorbond Roof

Another Roof Replacement in the Perth Hills

Low-pitched tiled roofs are significantly more prone to leaks due to their shallow angle, which reduces effective water runoff and increases the risk of water ingress—especially during heavy storms and strong winds. Over time, this can lead to serious damage to the roof structure, insulation, and ceilings, as well as mold growth and expensive repairs.

Replacing a low-pitched tiled roof with a Colorbond roof is a proven long-term solution. Colorbond’s sleek, continuous metal sheets are specifically engineered for low-slope applications, offering superior water resistance, durability, and low maintenance. The result is a modern, weather-resistant roofing system that protects your home for decades.


Our most recent roof replacement in the Perth Hills is a perfect example of why tiles are unsuitable for low-pitch roofs and why conversion to Colorbond was essential. The original tiled roof had a pitch of just 12 degrees—well below the minimum 15 degrees required for tile installation, and far under the 20 degrees we typically recommend. While most new homes in Perth are built with a 25-degree pitch, homes from the 1970s—like this one—often have much shallower designs that simply weren’t built to handle the intense rainfall we’re now seeing more frequently. This particular property also had structural issues, requiring major repairs to level and reinforce the roof, with some areas having sagged as much as 15 cm.

The transformation has delivered a significant improvement—not just in appearance but in performance and peace of mind. The new Colorbond roof will provide long-term protection, remain leak-free, and add real value to the home.

If you have a low-pitched roof and are experiencing issues, feel free to get in touch.
We’ll assess your roof and offer the best solution, backed by years of experience and proven results.


Email [email protected]
or fill in our Online Form to request a complimentary quotation.


How To Choose The Right Roofing Contractor In Perth For Your Roof Repairs, Roof Restorations & Roof Replacements

13/12/2019

 
I recently sent out an electronic season greetings card (no paper waste) to all my previous clients and also to those who I have quoted but may have engaged another company to complete the work. One such customer, who prefers to remain anonymous, chose another roofing contractor who had been referred by a friend. This is usually a good place to start, however as it turns out the contractor was not so great after all. Here is the email I received.

Dear Anthony,
 
Thanks for the festive greetings.
 
Though we've never had the opportunity of using your services - I did receive a quote from you. Unfortunately at the time we elected to use another company to attend to the work required who were recommended by a close friend - How could we go wrong! This will go down in history as the worst decision I (we) have ever made. Anyway - here we sit two years down the track with a roof that although not leaking - the work on the ridge caps looks diabolical. The company in question have been back three times to rectify the mess - but it still looks like something that the "work experience guy" did. Each time I go up on my roof I get more and more frustrated. In frustration and after numerous complaints - I ended up with a bag of clips and two buckets of pointing material. I only wish I'd have looked a little deeper into this. 
 
Anyway, thanks again and I will get you back at some stage to quote on potentially rectifying and finishing the roof restoration.
 
Regards
RM
Roleystone


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Standard of our workmanship. This photo shows Ridge Capping completed by Kalamunda Roof Restorers.

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Fretting Clay Roof Tiles - Roof Replacement In Perth

29/8/2019

 
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Fretting Clay Roof Tiles Perth
The main reason we are called upon to replace a roof is due to tile fretting. This is a condition whereby the clay tiles begin to break down back into flakes and powder. We were recently called to a property in Willagee, Perth with this exact problem and as the photos demonstrate the process of tile fretting was in its latter stages to the point were some tiles were eroded all the way through. The only solution for this problem is to replace the roof and the owners of this property always wanted a Colorbond roof so there was no better time than now.

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Roof Restoration South Perth - An Old War Verteran's Home

5/8/2019

 
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Condition before work commenced
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Restoration complete
The owner of 44 York Street South Perth had recently purchased the property, an old circa 1920’s war veteran’s home, and needed some advice on how best to move forward in terms of restoring or replacing the roof. The property and in particular the roof had been somewhat neglected, with numerous leaks evident on the ceiling. After assessing the roof I was confident the roof could be restored, however the biggest challenge was how brittle the tiles were. With careful planning and ability to source enough spare tiles, we were able to complete the roof restoration and the results surpassed expectations. From a dilapidated roof to a new looking roof, the transformation was incredible.

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Driveway And Paving Painting In Perth

30/1/2019

 
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Driveway Painting / Restoration In High Wycombe, Perth.
The majority of our work here in Perth consists of roof repairs, replacements and restorations, however on occasion we do get asked to paint or seal our clients driveways and pathways.

The process is very similar to restoring a roof however a few extra steps may be required depending on the surface being sealed or painted. Firstly the surface is meticulously prepared to remove oil, dirt and any loose paint if previously coated. For new concrete surfaces an etcher is applied to improve surface porosity and therefore better paint penetration. The driveway or paving must then be left for a few days to dry out completely prior to applying the coatings so the best time of year to do paint a driveway is in the drier months.

Once the driveway or paving is ready for coating, the first coat is applied thinned down as per manufacturers guidelines, as this helps the paint to penetrate the surface of the concrete. After the thinned coat is dry, an additional 2 x top coats of “neat” paint are applied. The surface must then be left to cure for at least 5-7 days before driving or parking a vehicle on top.
 
This is a driveway we recently painted for a client of ours in Perth who also recently had their roof fully restored. With the roof restored and driveway coated the house has been transformed and our clients are very happy with the result. If you live in Perth and would like your roof or driveway painted, please contact the Kalamunda Roof Restorers team on 0422 469 125 or email [email protected] or fill in our Online Form to request a complimentary quotation.

Best Time To Do Roof Repairs, Roof Plumbing, Roof Restorations and Roof Replacements In Perth

13/1/2019

 
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The best time to do any roof work is Perth’s drier months. It is during this time when there is obviously less risk of rainfall and therefore greater opportunity to complete the work uninterrupted. It is also the best time to complete any ridge cap work without risk of rain washing out any fresh pointing and also the best time to paint without delays due to slow drying roof coating times and unpredictable weather patterns common in the wetter months.

The drier months are really when all roofs should be prepared for the wetter months ahead to avoid any surprise roof leaks we commonly see when the first winter storms arrive. We also complete most of our roof plumbing, guttering and downpipe work during in the drier months to avoid the disruptions from winter storms. Not surprisingly, the wetter months are usually our busiest for repairs due to the number of leaks that develop so the drier months are a good time to get in early and complete any roof repairs, roof plumbing, roof restorations and roof replacements before the busy period kicks off.

Ultimately, it’s never too late as long as it’s not too late!
 
Don’t put off having your roof inspected, preventative maintenance is far better than waiting for a breakdown!
 
Call Kalamunda Roof Restorers for an obligation free roof assessment and quote on 0422469125, email [email protected] or fill in our Online Form

Perths Leading Roof Restoration Company

13/1/2019

 
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 Perth Roof Restoration Reviews

Based on the number of testimonials we have received from our perth clients over the years (click here to read) we here at Kalamunda Roof Restorers pride ourselves on knowing that we have served our Perth clients to the highest level possible. Our goal has always been our clients recommendation to their family and friends and the best way we know how to do that is to provide an outstanding service from the moment first contact is made, to the completion of the job and importantly, after care service. We are genuinely here to provide the best roofing service in Perth to our clients and the testimonials we receive are an honest reflection of this commitment.

When you choose Kalamunda Roof Restorers to care for your roof, you are choosing a company that you can trust to complete the work to a high standard, stand behind their warranty, and ensure at the end of the job your expectations are exceeded.

For professional advice and more information about our premium roofing maintenance, roof restorations and roof replacements in Perth, please contact the Kalamunda Roof Restorers team on 0422 469 125, email [email protected] or fill in our Online Form to request a complimentary quotation.

Tiled Roof v's Colorbond Roof

10/9/2018

 
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White Colorbond Roof Sheeting
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Dark Clay Roof Tiles
I am often asked the question, “If I was building a new house in Perth, what type of roofing material would I choose and what are the advantages and disadvantages of each”? Lets start with aesthetics. I personally like the look of clay roof tiles on a classic Hamptons style house and Colorbond on a more modern or even federation style house, but that’s just my opinion. So it really depends on the style of house you choose and your personal preference in color. White roof tiles in my opinion don’t look great, but white Colorbond does and visa versa, black tiles look great but black colorbond doesn’t, which again is my personal opinion. When it comes to the advantages and disadvantages of each roofing material, I think the best way is to just list them in a generalized manner as I have below:

Tiles – Clay

Advantages
  • Roof asthetically looks good
  • Tiles last longer 50-100 years
  • Tile colour doesn’t fade
  • Easier than metal roof to access roof space for electrical/plumbing work
  • Fire resistant
  • Don’t rust
  • Quiet when it rains

Disadvantages
  • Tiles break. Some tiles can break in places that are concealed by tiles next to or above the broken tile making it difficult to find.
    o  Solution - Tiles can be replaced and broken tiles that are concealed can take some investigation, but usually can be found by lifting all the tiles in the leaking area and inspecting each tile.
  • Fretting. Clay breaks down when in contact with salts.
    o  Mainly a problem by the coast or when solar hot water systems, evaporative air conditioners or pool heating leaks onto the roof.
  • Dust and leaves enter roof space.
    o  Solution - Use Sarking under tiles and valley/gutter mesh to prevent leaves entering roof space.
  • More prone to leaking compared to a metal roof.
    o  Usually tiled roofs leak due to neglect and lack of maintenance. A well maintained tiled roof should not leak.
  • Lichen and moss grow on clay tiles and can affect the appearance of the roof, the longevity of the tiles and also contribute to leak issues when the drainage channels / pans are blocked up with this growth.
    o   Solution – Pressure cleaning the roof at 3500psi every 5-10 years should keep the roof looking great. There are also other products that can be sprayed onto the roof every 5 years or so to kill the growth of moss and lichen so the roof continues to look great.
  • Ridge caps need repointing every 15-20 years.
    o   Solution - An unavoidable issue with tiled roofs, but ridge caps can be pressure cleaned and repointed with a flexible acrylic cement to seal up any cracks that have formed and keep moisture from entering the roof space.
  • Sarking. Sarking is the weather proof film that is installed under the tiles to help prevent leaks should there be an issue with the tiles. However, over time the sarking breaks down or gets holes in it from trades accessing the roof space or from vermin chewing holes through it. This then leads to areas where water can enter the roof space onto the ceilings.  When tiled roofs with sarking leak, the cause of the leak may be difficult to pinpoint as the source of the leak may be higher up the roof.
    o   No real solution for this apart from keeping vermin out of the roof by covering valleys and gutters with mesh, and avoiding trades accessing the roof space from the roof, which can be almost impractical when electrical or plumbing work requires access to confined spaces.
  • Heavy. Tiled roofs can weigh a lot, perhaps 10–15 tons for a standard-large 4 x 2 house. The problem arises when the roof carpentry is not done to standard, which then leads to sagging roof timbers and in some cases, in danger of collapse.
    o   Solution – When the roof is being constructed, the roof frame needs to be inspected by the building supervisor to confirm that it meets the building codes for tiled roof frames. It would also be a good opportunity to request additional struts be installed where possible to add support and strength to the roof frame.
  • Tiles cannot be used on low pitch roofs. Tiled roofs should be no less than 15 degrees, below which they are at greater risk of leaking. A good pitch for a tiled roof is around 25 degrees, above which looks great, but becomes more expensive to construct and is also risker to work on.
    o   Solution – ensure roof frame is 20-25 degrees to reduce risk of roof leaks commonly observed in lower pitch roofs. If a lower pitch roof is required a metal roof is recommended.
  • Tiles generally look better in a darker colour. This means they will be hotter in summer, but also warmer in winter.
    o   Solution – All roofs should have some form of insulation, so my recommendation for any tiled roof would be heavy duty sarking, as well as heavy duty ceiling insulation (eg batts). This will help insulate from the heat in summer and help keep the house from losing heat in winter. Also, to help evacuate hot air from the roof space in summer, I would recommend installing some solar exhaust fans or whirly birds.

Tiles - Cement

Advantages
  • Cheaper than clay tiles and can look just as good.
  • Can last just as long (50-100years) if maintained and restored at 20 year intervals.
  • Easier than metal roof to access roof space for electrical/plumbing work.
  • Fire resistant.
  • Don’t rust.
  • Quiet when rains.
  • Don’t fret like clay tiles.
  • Lichen generally doesn’t grow on cement tiles.

Disadvantages
  • Cement tiles generally break and chip easier than clay tiles.
    o  Solution – Broken tiles can be replaced, be careful when walking on the roof to minimise the risk of the weak corners from breaking.
  • Colour on most cement tiles is applied as a painted coating during manufacture and so the colour fades over time, eventually requiring a roof restoration. Some tiles are coloured with oxides in the actual cement, so should keep their colour / appearance over time.
    o  Solution – Cement tiles can be pressure cleaned, sealed and painted to restore their colour and prevent moisture penetration. This is generally required every 20 years and is an opportunity to change the colour of the roof is desired.
  • Dust and leaves enter the roof space.
    o  Solution – Use sarking under tiles and valley / gutter mesh to prevent leaves entering roof space.
  • More prone to leaking compared to a metal roof.
    o  Usually tiled roofs leak due to neglect and lack of maintenance. A well maintained tiled roof should not leak.
  • Moss (but not lichen) grows on cement tiles and can affect the appearance of the roof, the longevity of the tiles and also contribute to leak issues when the drainage channels/pans are blocked up with moss.
    o  Solution – Pressure cleaning the roof at 3500psi will clear away moss and debris, but this is generally only done on cement tiles in preparation for painting. There are products that can be sprayed onto the roof every 5 years or so to kill the moss but pressure cleaning is generally the best way to clean out the drainage channels between tiles. Also, when a cement roof is pressure cleaned, any oxidized paint will also be removed, so unlike a clay tile which doesn’t lose its colour, a painted roof will lose its coating over time and eventually require recoating.
  • Ridge caps need repointing every 15-20 years.
    o  Solution – An unavoidable issue with all tiled roofs, but ridge caps can be pressure cleaned and repointed with a flexible acrylic cement to seal up any cracks that have formed and keep moisture from entering the roof space.
  • Sarking – Sarking is the weather proof film that is installed under the tiles to help prevent leaks should there be an issue with the tiles, however over time the sarking breaks down or gets holes in it from trades accessing the roof space or from vermin chewing holes through it. This leads to areas where water can enter the roof space onto the ceilings.  When tiled roofs with sarking leak, the cause of the leak may be difficult to pinpoint as the source of the leak may be higher up the roof.
    o  No real solution for this apart from keeping vermin out of the roof by covering valleys and gutters with mesh, and avoiding trades accessing the roof space from the roof, which can be almost impractical when electrical or plumbing work requires access to confined spaces.
  • Heavy – Tiled roofs can weigh a lot, perhaps 10 – 15 tons for a standard-large 4 x 2 house. The problem arises when the roof carpentry is not done to standard, which then leads to sagging roof timbers and in some cases, in danger of collapse.
    o  Solution – When the roof is being constructed, the frame needs to be inspected by the building supervisor to confirm that it meets the building codes for tiled roof frames. It would also be a good opportunity to request additional struts be installed where possible to add support strength to the roof frame.
  • Tiles cannot be used on low pitch roofs. Tiled roofs should be no less than 15 degrees, below which they are at greater risk of leaking and cement tiles are more prone to leaking at lower pitch compared to clay tiles. A good pitch for a tiled roof is around 25 degrees, above which looks great, but becomes more expensive and also risker to work on.
    o  Solution – ensure roof frame is 20-25 degrees to reduce risk of roof leaks commonly observed in lower pitch roofs. If a lower pitch roof is required a metal roof is recommended.
  • Tiles generally look better in a darker colour. This means they will be hotter in summer, but also warmer in winter.
    o  Solution – All roofs should have some form of insulation, so my recommendation for a tiled roof would be heavy duty sarking, as well as heavy duty ceiling insulation (eg batts). This will help insulate from the heat in summer and help keep the house from losing heat in winter. Also, to help evacuate hot air from the roof space in summer, I would recommend installing some solar exhaust fans or whirly birds.

Metal roof – Colorbond or Zincalume

Advantages
  • Modern / archituctural look but can be used on older colonial / federation buildings.
  • Fire resistant.
  • Require less maintenance and are less likely to leak compared to a tiled roof.
  • No risk of broken tiles.
  • Anticon is used instead of sarking which adds insulation.
  • No need to repoint ridge caps every 15-20 years like a tiled roof.
  • Lighter in weight compared to a tiled roof so don’t require as much frame support strengthening.
  • Less gaps for leaves and dust to enter roof space.
  • Harder for burglars to break and enter through roof (apparently the roof is commonly used by burglars to enter a building.

Disadvantages
  • Screws require replacing every 20-30 years as the tend to be the first thing to go rusty.
  • Roof sheets corrode on underlap especially in coastal areas.
    o   Solution – This normally takes a long time for this to happen if the correct roof sheeting (eg Colorbond Ultra) is used. Roof sheeting can be replaced fairly easily.
  • Colorbond roofs will fade over time, especially the darker colours and require recoating every 20 years to continue looking good and help protect the metal base material from corrosion.
  • Metal roofs are hard to access the roof space from top (eg for plumbing/electrical work)
    o   Solution – Sheets can be unscrewed and removed for access, it’s just harder than removing a few roof tiles.
  • Lighter in weight - Although being lighter is an advantage, metal roofs must be tied down to the house walls/frame to ensure they don’t lift and blow away in strong winds.
  • Risk of denting - No risk of broken tiles, but risk of denting when people walk on the roof.
    o   Solution – Install heavier gauge sheeting , closer battens, or simply educate people/trades to tread on the screw lines.
  • Gutter guard and valley mesh - Gutter guard and valley mesh require adhesive strip or saddles to secure the mesh – these collect leaves where they join onto the roof.
  • Metal roofs are more noisy when it rains.
    o   Solution - Anticon and ceiling insulation significantly reduce rain noise.

Which Roof Covering Is The Best?

So overall, each roofing system has advantages and disadvantages and the list above should help give an insight into the pros and cons and help you choose what type of roof is best for you. If you are building a new house, you really have a great opportunity to select a roof that best suits your house from an architectural perspective, as well what’s best for your climate and location (eg proximity to coast, ease of access for maintenance etc). Whatever roof you choose, there is no such thing as maintenance free, so expect to spend some money over time to
keep your roof looking great and free from leaks.
For professional advice and more information about our premium roofing maintenance, roof restorations and roof replacements in Perth, please contact the Kalamunda Roof Restorers team on 0422 469 125 or email [email protected] or fill in our Online Form to request a complimentary quotation.

No More Roof Maintenance Problems With A New Roof In Glen Forrest Perth

17/5/2018

 
We have just completed a roof replacement in the Perth Hills suburb of Glen Forrest, changing from cement tiles to Colorbond. The owner no longer wanted the roof maintenance problems associated with broken tiles, cracked ridge caps and subsequent leaks and couldn’t wait to see them off the roof and thrown in the bin (hence the photo of the tiles in the truck!).
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Roof Replacement - Clay Tiles to Tin (Colorbond)

6/2/2018

 
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Swiss Clay Tiled Roof Perth - Major leak problems.
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New Colorbond Roof Perth - Manor Red Colour
Your roof is not meant to leak, period. But when a roof does leak it can cause significant damage to the building in which it is meant to protect.

We have just replaced a section of a tiled roof at Mazenod College in Lesmurdie as they had persistent and ongoing problems with the roof leaking. No matter what they did to address the issues, every year new leaks would appear. The main problem with the roof was the tiles.

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