Bleached and Burned Cedar Looks Better Than New

This architecturally designed home in Titirangi is the perfect example of a well-designed Cedar home, with few soffits or overhangs for most of the structure.

This allows the sun to weather the boards evenly, making ongoing maintenance more straightforward and cost-effective.

The western face at the rear does have an overhang, and you can clearly see the uneven effect it can have on Cedar. Uneven weathering usually requires restoration as opposed to maintenance.

This Cedar was installed 10 years ago, with little more than a light oil to protect the timber against the harsh UV. That coating has long since burned off, leaving the Cedar exposed to the sun.

Thankfully, Cedar is such a resilient timber that a deep clean and oil can work wonders.

Maintenance Timeline

The customer first contacted us on the 15th of November, 2024.

21st November 2024 – Initial onsite assessment completed.
25th November 2024 – Quote sent.
6th January 2025 – Team arrived onsite to start the job.
21st January 2025 – Job completed.

Cedar Restoration Process

The initial assessment showed that the Cedar was in good overall condition, but the northern and western faces had been burned by the sun and were very dry.

Whatever protective application they initially used did not have any pigment, leaving the Cedar to turn grey over time.

The Cedar also had mould and bacteria growing on the outside, which happens when the harsh UV rays break down the surface of the timber. To remove the organic matter, we deep clean the Cedar using a biodegradable cleaning solution that is safe for pets and does not harm any surrounding plant life.

Once the timber is clean and dry, we can start to apply the oil.

The customer chose Wood-X Kauri Gum to give the Cedar a natural look, closely resembling wet Cedar. This is a mineral oil that soaks into the timber, leaving pigment on the surface to protect against the UV rays.

The northern face of the house runs long up the side of the property and is the first thing you see upon arrival.

The top of the cladding has been bleached by the sun. This was extremely dry and sucked up a lot of oil, around 4 square meters per litre.

If you look under the window frame, you can see where the windows have been cleaned with a brush. Cedar is very structurally sound, but the surface can be easily damaged if you are not careful.

The darker sections at the bottom are mould and pollen, which have been exacerbated by the surrounding bush. Sometimes the trees can protect the timber if they are nestled in tight, but the number of trees here added to the amount of pollen on the timber.

Cedar Restoration Challenges

There were two main challenges for this job: access issues and uneven weathering.

The southern face of the house has high walls and two large water tanks at the base. Without ground access we could not use ladders or mobile scaffolding. To gain safe access to this area, we used fixed scaffolding.

Both the southern and northern faces have uneven ground, with limited access, and required careful use of ladders.

The dormer situated on the roof at the back of the house also needed rope and harness to be done safely.

Souwest on roof wash .5 oil 1 plus .5 rope and harness

As mentioned before, it’s best not to have any soffits or overhangs on Cedar homes. While they do protect the timber from the sun, the effect can be aesthetically unpleasant, as seen here on the western face.

In the photo below, there is a line just below the overhang where the Cedar was shaded from the sun. To fix uneven weathering, our team needs to strip back the surface to an even finish and then apply oil.

The western face also had some black areas above the window which had been burned by the sun. Below the window, there were even darker areas caused by the rain hitting the concrete and bouncing back, causing dust and muck to accumulate.

The front of the house, which faces east, had a section of timber above the front door that had not been exposed to the sun and appeared orange (the natural colour of the Cedar), in stark contrast to the grey timber to either side. This required an expert touch to even up the colour, which can be seen below.

Ongoing Maintenance Requirements

Our recommendation is to recoat the northern and western faces within 3 months. If you look at the top of the walls in the after photos, the oil is already soaking in and appears lighter. And we used a lot of oil on this wall.

The recoat isn’t critical, but topping up the pockets in the Cedar with oil will provide maximum protection and make sure the colour remains consistent.

After that, the house will fall into a regular maintenance schedule, with sun exposed areas needing a recoat every 2-3 summers.

Final Thoughts

The customer was knocked back by the transformation. The years of grime and dirt were washed away and replaced by glistening Cedar that looked better than the day it was installed.

The contrast between the Kauri Gum tint and the black joinery looks amazing. We even washed their skylights while we were up there!

This was a quick job, with the bulk of the work being done in a week by our technicians, Mikey and Lorena. Great work, fantastic results!

Property Details

Year of Build:

2015

Location:

Titirangi

Coating:

Wood-X Kauri Gum

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14 Sep 2023

Commercial Cedar Restoration in the Heart of Hobsonville

Brickworks is large, mixed-use complex spanning an entire block in Hobsonville. The complex is comprised of 4 buildings situated around a central parking court and rain garden, with 60 residential homes and additional commercial units at the street level.

The mixed-use nature of the development was designed to be the commercial heart of the surrounding suburb and the appearance of the building is integral to its success.

Clad in an eye-catching mix of bricks and Cedar, the aesthetic is based on the industrial buildings that were once present on the site and pay tribute to the rich history of the area.

The building was finished in May of 2015. The original intention for the Cedar was to let it weather naturally and give the building a silvered look.

However, the rates at which the Cedar was silvering were inconsistent depending upon the orientation of the timber and the building was starting to look patchy and uneven, with some watermarks on the surface.

Up until then, the body corporate had been getting the Cedar soft washed every year but were unhappy with the results. To show the difference between a soft wash and a deep clean, we first did a demonstration on an isolated wall.

The initial results were striking and TimberTech was awarded the contract to maintain the building over a 10-year period.

Maintenance Timeline

The body corporate for Brickworks first approached TimberTech in March of 2020.

2021, August – Deep clean and recoat the entire building.
2022, May – Recoat the sun-exposed dry faces only.
2024, Oct – Soft wash, recoat the sun-exposed northern faces and assess the other faces.

In general, sun-exposed faces should be recoated every 2-3 summers to protect the Cedar against the elements and keep it looking great all year round.

As part of the 10-year maintenance plan, we are scheduled to wash and recoat the entire building in 2026, recoat the sun-exposed dry faces in 2028, then recoat the sun-exposed dry faces and assess the other faces in 2030.

Cedar Maintenance Process

As the original intention had been to let the building silver naturally, the Cedar was in a natural state with no oil or stain.

Upon first inspection, the northern face was dry as a bone. The remaining faces were faring better, but still in need of treatment to protect against future wear and tear.

We started with a deep clean of the entire building to remove the oxidised timber fibres responsible for the Cedars patchy, silvered look. The Oxyclean solution also removes all the dirt, grime and organic matter, restoring the natural timber tones.

Once clean, the timber was treated with a tinted penetrating oil developed by Wood-X.

As the Cedar had not been treated previously, the initial application of oil was quickly absorbed by the dry timber. We then needed to return 6 months later to give the entire building a second application.

Cedar Maintenance Challenges

The main challenges for the project were the height of the buildings, the sheer size of the complex and access management.

Brickworks is four stories high, and most of the apartments have Cedar balconies that jut out from the main structure. To work safely at this height, we scaffolded whole sections of the building at a time and used a 28-meter knuckle boom for added versatility.

The configuration of the complex – basically a rectangle with one side that runs along a main road, heavy with car and foot traffic – meant that we had to manage traffic and operate in a dynamic environment, following strict health and safety procedures.

Cedar had also been used on the inner faces of the buildings above the gated carpark, which required us to work with the residents to organise ongoing access.

The Final Outcome

The whole job took 6 weeks in total. There was a lockdown midway through the project which pushed the job out, but in ideal conditions a project of this size takes around 4-6 weeks.

The body corporate, residents and shop owners were all amazed by the transformation. This was a prestigious building upon completion and there was no reason for it to age prematurely.

After deep cleaning the Cedar and treating it with oil, the look turned from shabby grey to a golden-brown lustre. With regular maintenance, there is no reason why it can’t look fresh and vibrant for years to come.

Our team was also stoked with the final outcome. This was a complex job with a lot of moving parts, and the team pulled it off flawlessly.

But don’t just take our word, head over to 160 Hobsonville Point Road and see for yourself!

With the rise of Cedar as a preferred cladding for apartments and office buildings, this type of work is only going to grow more specialised. TimberTech has the expertise and the experience to manage any job, no matter the size or the scope.

11 Jul 2023

Tree Nestled Cedar Home Restored to Golden Luster

This contemporary Cedar home, built in 2014, is located in Green Bay and surrounded by trees and leafy green foliage, beautifully accentuating the golden glow of the Cedar.

While the location is very pleasing to the eye, being surrounded by trees can increase the amount of airborne organic matter landing on the Cedar. The property is also north facing and receives plenty of sun throughout the year. These environmental factors make regular maintenance essential for the long-term health of the Cedar and to keep it looking clean and fresh all year round.

Thankfully, the owners of the property were aware of the Cedar maintenance requirements from the start and chose the right products, with the right Cedar maintenance plan.

To understand the benefits of a regular maintenance plan and how it can save you money over the long term, we need to first look at the history of the property.

Maintenance Timeline

In 2015, the homeowner asked us to visit the property and check over the health of the Cedar.

Although they had only moved in one year previous, the Cedar on newly built houses is often installed 3-6 months before the homeowner moves in, so the weathering process is already well under way.

Over the next 5 years, we maintained the house on 3 separate occasions:

2015 – Oxy-wash and recoat of the entire house.
2017 – Oxy-wash and recoat of the northern faces.
2020 – Oxy-wash and recoat of the northern faces.

The photos of the house were taken in 2020, after the last round of maintenance, and the work described below covers the regular maintenance undertaken in that period.

Cedar Maintenance Process

Upon first inspection, the Cedar had silvered in some areas and there was mould sitting around the windows. As the house is surrounded by bush, a build-up of organic matter was always going to be a factor. While the amount of mould and dirt wasn’t significant, the overall effect is unsightly and not great for the long-term health of the timber.

We started with a light oxy-wash to prepare the Cedar for treatment. Once clean of organic material, we recoated the northern faces of the house with a penetrating wood oil that matched the original treatment.

The original treatment used a light, golden-brown coloured oil to give the Cedar a natural finish that ties in with the joinery and the bush setting.

Lighter coloured oils have the same maintenance requirements as darker oils, however, they can help hide some of the natural weathering and make organic matter less noticeable. This can be useful in locations that are exposed to the elements, such as bush or coastal areas.

Cedar Maintenance Challenges

As the Cedar had originally been coated with a penetrating oil, ongoing maintenance was a straightforward process without any unforeseen challenges.

Compared to a film forming product such as a stain, a penetrating oil allows the Cedar to weather evenly and can usually be maintained with just a soft wash and a recoat of sun exposed areas.

As the house has 2 stories, the job also required mobile scaffolding, which was supplied and erected by the Cedar Technicians and included in the overall cost.

Ongoing Maintenance Requirements

Now that the whole house has been treated, ongoing maintenance becomes more affordable as only the sun-exposed faces need maintaining every 2-3 summers. The rest of the house may not need further maintenance for 5-7 years.

The Final Outcome

Over 9 years, the owners have spent less than $15,000 on exterior maintenance costs, which is excellent value for a property of this size.

It’s also worth noting that while the original work we did cost $5680, the recoat we did 3 years later was less than half that cost. Purely from a cost perspective, this is one of the main benefits of regular maintenance.

Looking at the before and after photos, the results speak for themselves. The washed out, dirty timber looks almost brand new after the maintenance, regaining its brown luster.

4 Apr 2023

Stunning Transformation of Lichen-Covered Home

This traditional Cedar home, located in West Harbour, was built in 1989 and has a distinctive red colouring common for the time, a style that has now come full-circle and makes the home feel vibrant and unique.

Upon first inspection, it was evident that the Cedar had not been treated for some years, with significant lichen, mould & dirt present. The north face (the back of the property) was very broken down, with porous boards that had started to cup and had been left 3 or 4 years too long without recoating.

As we needed to erect scaffolding to access the upper stories, the customer also asked if we could refresh their bargeboards with a new coat of paint.

This property is an excellent demonstration of the resilience of Cedar as a superior cladding material. Even after years of neglect, Cedar can be renewed with a wash and recoat, followed by regular maintenance to maintain its natural beauty.

The Maintenance Process

The first step in the maintenance process is a chemical wash from roofline to ground using a penetrating surfactant and soft wash. Particular attention is paid to the cladding, removing all organic material from the timber in preparation for the treatment.

Following the wash, we treated the timber with Resene Woodsman Waterborne stain. Unlike the original stain, the new generation of oil stains are emulsified in water instead of solvents, which is better for the environment, and come in a range of colours.

The south face of the house (which is the front of the property, as seen in the images) was reasonably protected from the sun and just needed a wash, lichen removal and a recoat. The north face required 3 solid coats of stain to bring the boards back up to standard.

To restore the bargeboards, we removed the existing spouting, filled the holes, lightly sanded to prime, then applied 2 coats of 100% acrylic paint.

Challenges with Older Homes

Many older homes are exposed to the sun for extended periods without regular maintenance and require additional treatment. The north face of this property was particularly weathered and required a stronger washing process and more stain applications to bring the Cedar back to life.

Stains produced back in the day were also very strong, almost like a hybrid paint, and were designed to stop the timber aging rather than enhance the natural beauty. This can make it difficult to work with, especially if you want to change the colour or transition to an oil.

The most cost-effective solution is to enhance what is already there, which is the approach we took with this property.

Ongoing Maintenance Requirements

The property is now set for another 2 or 3 summers before needing another recoat on the exposed faces. The southern face can sit comfortably for another 5-7 years with only a light wash to remove airborne pollutants from the surface.

The Final Outcome

The end result was a stunning transformation!

We were able to restore the Cedar to its former glory, while retaining the unique look of the red-stained timber. As we were given the opportunity to maintain the whole house, our team was able to take care of even the smallest details, giving the whole property a new lease of life.

We even cleaned up the letterbox and applied the same stain, the finishing touch on a very satisfying job!

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