You can have an excellent paint product, but if you don’ t apply it properly, it won’ t perform as it should. Companies need to take a comprehensive approach incorporating a raft of processes to ensure the paint performs at optimum levels.
It starts with the timber. Manufacturers such as George Barnsdale use engineered timber because it is more stable and provides an excellent base for the coatings
When the frames arrive at the paint shop, they go through a unique four stage process starting with two preservative coats applied with a flowcoater. This method ensures the coating gets into all the hard-to-reach areas.
Once the preservative has been applied, it is time to paint. George Barnsdale was the first manufacturer to use a robot to apply a high film build base spray coat and a top coat.
Whilst the material preparation and the paint processes are critical to the performance of the paints, in order to ensure a window or door will last 60 years or more, you have to build in good design too.
George Barnsdale has been at the forefront of research into joint designs with the BRE and was the first UK manufacturer to use internal beading in the 1990s. Processes like end grain sealing ensure that the timber is protected in the unlikely event the joint fails.
WHAT’ S THE DIFFERENCE BETWEEN PAINTS AND COATINGS?
coatings are non-toxic, water-based, microporous, and extremely durable. They must adhere to EN927 which considers durability, performance, and environmental impact. It also covers methods for measuring the thickness of coatings.
HOW ENVIRONMENTALLY FRIENDLY ARE MODERN COATINGS?
There is no getting away from the fact that modern coatings contain plastic. However, this is what gives them longevity, meaning windows made to BWF standards like George Barnsdale’ s will last 60 + years with minimal maintenance.
By extending the life of a painted surface, less repainting is required, reducing the environmental footprint associated with manufacturing, transportation, and disposal of paint. In addition, there is the positive environmental( and financial) impact of not having to repaint every few years, hiring scaffolding, manpower, materials etc.
Of course, extending the life of the painted surface also extends the life of the window or door which also saves valuable resources over time as they need replacing far less frequently.
Architects and builders can help to increase the durability of timber windows by designing the building to reduce exposure to extreme weather. One of the ways of doing this is to follow the Victorians’ example and set windows in reveal. This doesn’ t have to be old-fashioned. You can make a design feature of it, as the architect did with the Orseh Kaneh building in Tehran.
Other ways to promote longevity of timber windows is to set them on stone, tile or aluminium and to avoid extended cills where possible.
FAITH RESTORED?
Global warming is a huge concern, architects are well aware of the need to design environmentally friendly buildings. Timber is the most sustainable choice and the concerns around durability are addressed by specifying high-performance windows from companies like George Barnsdale. Hopefully, this article has helped restore faith in timber windows and doors.
DOORS, WINDOWS & FITTINGS
The terms“ paints” and“ coatings” are often used interchangeably. However, for the most part, paints are considered to be used primarily for aesthetics, while coatings are used principally to prevent substrate deterioration or for corrosion protection.
Modern coatings are nothing like the paints and stains of old. Unlike the lead paints of the past, today’ s
" You can have an excellent paint product, but if you don’ t apply it properly, it won’ t perform as it should."
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