If you’re considering aluminium windows for your home, you’re likely to have lots of questions you’d like answered. One of the questions might be: Are they compliant with Building Regulations? The short answer is yes, but there are some important considerations to bear in mind.
In this blog, we’ll look at the Building Regulations that windows need to comply with. We’ll also look at what you need to know, and common pitfalls to avoid.
What are Building Regulations and why do they matter?
Building Regulations provide a set of minimum standards for the design, construction and alteration of buildings. They help ensure that buildings are safe, healthy and energy efficient.
Building Regulations are divided into ‘documents’ which each cover a different aspect of a building. The documents that may apply to windows are:
- Document L, which covers energy efficiency and thermal performance.
- Document B, which covers fire safety
- Document F, which covers ventilation
- Document K, which covers protection from falling
- Document M, which covers accessibility and ease of use
- Document Q, which covers security.
How easy is it for aluminium windows to comply with Building Regulations?
Building Regulations are often straightforward at first glance.
For example, replacement windows must have a U value of at least 1.4 W/m²K to comply with the thermal efficiency requirements of Document L of Building Regulations.
However, complex calculations and an in-depth understanding of different types of material are often needed to ensure a window meets (or exceeds) the minimum requirements.
When it comes to U values, it’s important to know that glass is a better insulator than any frame material. Bigger windows have a bigger glass to frame ratio, so they’re more thermally efficient and have a better U value.
On the other hand, smaller windows have a smaller glass to frame ratio, so a more insulating type of glass might be needed, or different thermal break technology in the frame if they are to achieve a U value of 1.4 W/m²K.
What’s more, the way a window is installed can also make a difference. For example, a window’s hinges, locks and handles might all meet the requirements of Document Q on paper. However, poor installation techniques could mean they don’t meet the required standards.
Why your choice of window company is vital to ensure your aluminium windows comply with Building Regulations
Because complying with Building Regulations can be very complex, it is vital to choose your window company with care. You need to be confident that the people designing, manufacturing and installing your aluminium windows know what they are doing. They must have a detailed understanding of Building Regulations and be experienced in ensuring their installations meet all the requirements.
At a minimum, look for a company that is FENSA-registered.
FENSA is a government-authorised scheme that monitors building regulation compliance for replacement windows and doors. Every FENSA Approved Installer is regularly assessed to ensure its standards are continually maintained.
When you choose a FENSA-registered company you’ll receive a FENSA certificate. This certificate is proof that your window installation:
- complies with Building Regulations (which is required by law)
- is registered with the local council (which is required by law)
- is backed by guarantee insurance (in case anything goes wrong).
The certificate will give you peace of mind. You’ll also need to have it to hand if you sell your property in future. It provides the new owners with the reassurances they need too.
Choosing Capital Windows as your aluminium window installer
Here at Capital Windows, we’re proud to be FENSA-registered. We’ve been manufacturing and installing windows for over 40 years, which gives us a depth of experience few other companies can match.
When you choose Capital Windows to manufacture and install your aluminium windows, you can be sure you’re in safe hands. Contact us today.