Does Boarding A Loft Insulate It?

Loft Insulation

There's a common misconception that boarding a loft will insulate it. While loft boarding provides a range of benefits, it is not a replacement for proper insulation. Here, we'll explore the relationship between loft boarding Leicester and insulation, and why both are essential to a functional and energy-efficient home.

Understanding Loft Insulation

Loft insulation works by slowing the transfer of heat between your home's interior and the outside environment. Insulation is typically placed between and over the joists in your loft, forming a thermal barrier. A well-insulated loft can significantly reduce energy bills by keeping your home warmer in winter and cooler in summer.

Role of Loft Boarding

Loft boarding, on the other hand, serves a different purpose. By laying sturdy boards over the joists, you can create a robust and usable storage space. Boarding your loft does not insulate it, but it can complement the insulation, provided it's installed correctly.

Combining Loft Boarding with Insulation

When installing loft boards, it's vital to avoid compressing the insulation. Compressed insulation cannot trap air effectively, reducing its thermal resistance and overall effectiveness. Traditional loft boarding installed directly onto joists can often lead to compressed insulation.

Many professional loft boarding companies now offer raised loft boarding solutions. By installing a raised frame over your existing insulation, they ensure the insulation is not compromised while creating a safe, robust storage platform above.

Enhanced Energy Efficiency

When combined with proper insulation, loft boarding can contribute indirectly to a property's overall energy efficiency. It creates a protective layer over the insulation, helping it remain effective longer. However, it's crucial to remember that boarding itself does not have insulating properties – the benefits to energy efficiency come from the underlying insulation.

Checking the Depth of Your Insulation

Before you consider boarding your loft, it's essential to check the depth and condition of your existing insulation. The recommended depth for mineral wool insulation in a loft is 270mm, but other insulation types may be different. If your insulation is insufficient or deteriorating, it's worthwhile upgrading it before adding loft boarding.

Ventilation and Condensation

Proper ventilation is crucial in preventing condensation, which can dampen insulation and reduce its effectiveness. When boarding a loft, it's important to ensure that adequate ventilation is maintained to allow moisture to escape.


In summary, while loft boarding can make your loft a practical, usable space, it is not a replacement for good quality loft insulation. Boarding should be seen as a companion to insulation, creating a protective layer that can help maintain the insulation's effectiveness over time. However, it is important to remember that the installation needs to be done correctly, with adequate ventilation and without compressing the insulation, to reap the benefits. Professional loft boarding companies can help ensure that both your boarding and insulation work together to provide an effective, energy-efficient solution.


Boarding your loft maximises unused space, creating valuable additional storage.


Significantly enhance safety for movement and item storage in you loft.


Professional loft boarding increases your home's overall energy efficiency.