Sustainability is more important than ever. It’s no longer an option you can choose to protect or neglect, but an essential factor of today’s construction and refurbishment landscape.
Choosing the right doors can make a significant difference in energy consumption and have a profoundly positive impact on a building’s and business’s carbon output and overall environmental footprint.
Alitherm 400 Doors deliver both the visual appeal and functionality demanded by architects, specifiers and building owners, all while being sustainable and doing their part to help the planet.
Energy Efficiency
Any good door will support sustainability by reducing heat loss, and, in turn, lowering the demand for heating or cooling. Our Alitherm 400 Doors do this expertly. They incorporate a polyamide thermal break into their design, between the inner and outer profile, to significantly reduce thermal transmittance and improve U-value.
By improving the thermal performance of a property’s doors, the space inside will benefit from more than just reduced heating usage. Occupants can expect improved comfort and fewer cold spots as the building becomes more efficient in dealing with external temperature fluctuations.

Long Lifespan & Low Maintenance
Efficiency in doors means nothing if they aren’t durable. Doors can dwindle in performance quickly if they’re created with low-quality materials or poor manufacturing practices.
The longer they last, the less maintenance they require, and they perform at their best for much longer, meaning less frequent replacements. This means that fewer earthly resources are used and less waste is generated.
Alitherm 400 Doors are made with aluminium, which is as strong as it is lightweight, and is highly resistant to warping, corrosion or rot – qualities that cannot be said for common alternatives like uPVC or timber.
Our profiles are powder-coated to finish and manufactured to withstand even the harshest weather conditions that you’ll have become accustomed to living in the United Kingdom, meaning they look the part for many years to come.
Recyclability
Sustainability is important beyond the operational life of a product and extends into what can be done with it in its afterlife. Aluminium is one of the most recyclable materials on the planet and can be reused for new products without any real loss of quality, time and time again.
This, of course, makes our Alitherm 400 Doors very sustainable and ensures they’re not sent straight to landfill at their perceived end of life. Instead, their recyclability and strength see them benefit the environment through their reuse.

Alitherm 400: The Sustainable Solution
The Alitherm 400 Door system from Smart and BDC is the perfect solution for eco-friendly, sustainability-conscious businesses. It delivers on all fronts, with no compromise on performance or durability in its earth-friendly design and manufacturing. If you’d like to find out more about BDC Aluminium’s eco-friendly Alitherm 400 doors, you can click here!