How Lacuna Bifold Doors are Changing the Game

Who is Lacuna?

Lacuna is a Danish company located in the small town of Langeskov on the island of Funen in Denmark who specialise in the design and manufacture of high-end timber bi-fold doors. Henrik Brunsø founded the company in 2008, as a result of him wanting a new bi-fold door for his own house renovation. Henrik was looking for a door which was sustainable; made from good materials; required low maintenance; was airtight; offered good insulation and looked stylish in his home. But he could not find anything in the Danish or European market which fitted these requirements.

After finding this gap in the market, he sat down with his old friend Lars Holm. First, they used their combined knowledge of timber, joinery, design and engineering to create the very first Lacuna bi-fold door. And the rest is history! After only a few years, Lacuna has become well-known, both in Denmark and abroad, for the quality and design of their products. That is to say, Lacuna are popular in countries as diverse as Canada, Switzerland, Austria, Germany, Spain, Norway, Iceland, Sweden and, of course, the UK – where they are supplied by Enlightened Windows.

Why would I want Lacuna bi-fold doors?

First off, you need to forget everything you think you know about bi-fold doors. Lacuna has completely rewritten the rules with its new approach. Crafted from the highest quality timber by Danish experts, Lacuna bi-fold doors truly open up your home to the outside and let nature in, whilst never compromising on performance.
One of the reasons we were excited to add Lacuna bi-fold doors to our ever increasing range of products at Enlightened Windows was due to the incredible performance of the product which equals that found in our existing German ranges.

Top marks for performance

Stories of leaky and draughty bifold doors may be an issue for other manufacturers…but not so for the Danish brand. Lacuna deliver products that are Class 4 airtight, watertight to class E1200 level, and are made from class 1 durability timber. Together with employing only the highest quality ironmongery complements the frame perfectly. All of their hardware is made from Danish marine-grade materials.

Superb insulation is also on offer from these bi-fold windows; the U-values are typically around 0.9 W/m² K with triple glazing. When you buy a Lacuna bi-fold door, you can rest easy knowing that you are investing in a product which is made from the best possible materials, will perform at the highest possible level and which will also stand the test of time.

Testing, testing!

But don’t just take our word for it! As part of their ongoing development process, Lacuna’s bi-fold doors have regularly undergone thorough testing for different aspects including security, airtightness and water tightness by organisations such as the Danish Technological Institute and the ift Rosenheim to ensure that the product is at the highest possible quality.

In one regular test carried out in-house by the company, Lacuna pull their TMT composite (heat treated beech) door frame out of salt water after being fully submerged for four months. After this full submersion, the paint had not cracked and it had only expanded by 0.4mm. In short, this demonstrates the unique durability of Lacuna’s products.

Beautifully tailor-made for your home

Appearance matters, we all know this. Lacuna bi-fold doors look fantastic and architects are sitting up and taking notice as a consequence. Lacuna bi-fold doors have the slimmest profile of any timber bi-fold door on the market. But the factory still manufacture up to a metre wide per leaf. Bespoke for each individual project, the doors can be built up to a generous 2.8 metres in height and nearly 6 metres in width.

At Enlightened Windows, we offer a very attractive range of configurations to best suit your home. For all types of Lacuna bi-fold doors, there is a choice between outward and inward folding, with outward going doors recommended for exposed areas. In terms of materials, the Lacuna bi-fold doors are available in a range of timbers including the extremely durable German-made beech, mahogany and oak. Choose beech timber for a painted finished product inside and out. And on the other hand, choose oak or mahogany for a natural wood appearance.

With the design fastidiously refined by the founder, Brunsø himself, until it was just perfect, there are also some very attractive possible design additions such as built-in blinds with excellent functionality. Lacuna finish the doors in any colour from the RAL Classic range. And you can choose from double, triple, obscure and solar glazing. Of course, timing is everything and, in terms of getting your new door to your home, you won’t have long to wait. A typical lead time is 5-7 weeks from order to delivery and installation itself is only a matter of hours.

Low maintenance all the way

When you buy a new door, maintenance is always a key consideration. And here, again, Lacuna truly steps above the mark. Thanks to the use of specialised German heat-treated timber, Lacuna bifold doors often don’t need any further treatment for 20-30 years. Sadly, most timber bifold doors are not usually associated with durability.
As an added bonus, thanks to the top-hung design, there is no need for a track in the threshold. As a result, everyday dirt has nowhere to collect and cannot jam the mechanism – ruining the smoothness of the sliding door. Of course, this also makes cleaning the threshold incredibly easy. Also, this reinforces the Lacuna bi-fold door’s status as a truly low-maintenance product.

A green machine: Lacuna doors are sustainable

Finally, in today’s increasingly eco-conscious world, mention must be made of Lacuna’s environmental credentials.
From the start of production through to testing of the seals during final installation, the company only uses environmentally friendly materials of the highest possible quality. As a result, the Lacuna bifold doors are not only sustainable but also offer the highest-ranking tightness and insulation.
For its doors, Lacuna only uses wood from trees grown in forests certified by the Forest Stewardship Council; the FSC make sure that they do not take more from nature than can be replaced. As well as their official environmental certificate showing that their products meet exacting safety, health and environmental requirements, Lacuna has also been shortlisted for the Danish Construction Association’s annual Energy Award on numerous occasions.

Want to learn more?

To find out more about the range of top-quality, bespoke bi-fold doors from Lacuna, simply download their product brochure. You can also visit the company’s website to browse their range of products online.
Written by Georgia Tindale