Key Product Features
The beauty of Accoya and hardwood is hard to replicate in any other material; KJM offers a full range of European Redwood, Larch, Sapele and European oak windows and doors. An environmentally friendly alternative to hardwood is our Accoya softwood.
Accoya® is the world’s leading high technology wood. Created from sustainably sourced softwood, Accoya matches and exceeds the best tropical hardwoods’ durability, stability and beauty of the very best tropical hardwoods. The production process takes fast growing softwood and makes it as durable as hardwood. By reacting the wood with acetic anhydride (known as vinegar when diluted), this changes the chemical structure of the wood, making the wood’s ability to absorb water much less.
The science and 21st century technology behind Accoya is based on acetylation, a process that has been studied by scientists around the world. Acetylation effectively changes the free hydroxyls within the wood into acetyl groups. This is done by reacting the wood with acetic anhydride, which comes from acetic acid.
When the free hydroxyl group is transformed to an acetyl group, the ability of the wood to absorb water is greatly reduced, rendering the wood more dimensionally stable and extremely durable. When Accoya wood is cut or jointed there are no exposed non-acetylated surfaces, unlike pressure treated timber that would require the cuts to be retreated.
Accoya & Hardwood Options
Tailor made by experienced craftsmen, we install timber window products that will give you years of trouble free pleasure. Our supplier manufactures high quality timber windows based on a high quality design. The beauty of timber is unsurpassable and if looked after will last for many generations.
Carrying accreditations for thermal performance, security and weather tightness, our windows can meet the most demanding specifications. We can supply stormproof windows, flush casements, mock sash windows and traditional sliding sash windows with weights and pulleys or spring spiral balances to homes throughout Andover and Hampshire areas.CONTACT US
Accoya Windows & Doors Benefits
This new high performance wood can be specified on our range of cladding, windows, doors and conservatories. The wood is guaranteed for 50 years in exterior use and 25 years when used in the ground. With various of benefits you can use our beautiful hardwood and Accoya to add stunning visuals and features to your home today.
All of our timber products are coated using the Teknos water-based paint system.
The paint or stain finish applied to our Dempsey product range is of an exceptionally high standard. Our timber products undergo a 4 step finishing process. The assembled product is treated to protect endgrains from moisture ingress and a base coat is applied by flowcoater and two top coats are applied to the correct micron thickness by a controlled spray line.
Our paint system protects the wood in three ways: from harmful ultra-violet rays which can cause greying and coarsing of the wood, from water ingress, and being microporous allows excess moisture to escape and it is flexible and it can therefore expand and contract naturally with the timber
Accoya & Hardwood Prices Andover & Hampshire
Our windows and doors can be customised with our beautiful Accoya and hardwood. If you have considered this material for installation, we are here to help you complete your dream project and specifications.
As projects vary in specifications and requirements, we don’t have standard costs on our window options. If you’re looking for a bespoke Accoya or hardwood quote, contact us today using our contact form, we will be happy to help discuss quotations with you.
Frequently Asked Questions
What is Accoya softwood?
Accoya® is not timber; it’s a process to preserve the wood. There is no Accoya tree; in the same way, there is a Pine tree or an Oak tree. Accoya is the name given to the process applied to timber to preserve it. This particular timber is made using a fast growing, sustainably forested Radiata pine.
How is Accoya softwood made?
The production process takes fast growing softwood and makes it as durable as hardwood. This is done by reacting the wood with acetic anhydride (known as vinegar when diluted); this changes the wood’s chemical structure, making the wood’s ability to absorb water much less.
What benefits do Accoya and hardwood offer?
Designed to reduce swelling and shrinkage by more than 75%, our Accoya wood is an excellent way to provide durability and lasting benefits to your windows and doors. Accoya, which can be painted and hardwood which can be stained, are highly customisable by image and finish to provide a rot and insect barrier.
How does the paint system protect Accoya and hardwood?
Our paint system protects the wood in three ways: they save it from harmful ultraviolet rays, which can cause greying and coarsening. Alternatively, they protect the wood from water ingress, and being microporous allows excess moisture to escape. Finally, they are flexible and expand and contract naturally with the timber.
Are Accoya and hardwood options sustainable and recyclable?
Throughout testing and manufacturing, we ensure our Accoya and hardwood options positively impact the Andover and Hampshire environment even until the end of life. Manufactured from sustainable sources such as Rediata pine, our Accoya and hardwood can be 100% recycled at the end of its lifespan.
What is the science behind Accoya softwood?
The science and technology behind Accoya is based on acetylation, a process studied by scientists worldwide for many years. Acetylation effectively changes the free hydroxyls within the wood into acetyl groups. This process is forced throughout the wood, so when Accoya wood is cut or jointed, there are no exposed non acetylated surfaces.