How to Insulate Your Loft Floor Without Using Fibreglass

Difficulty: Easy • 6 Steps

This How-To-Guide will display how to insulate your loft floor, without the use of Mineral Wool or Fibreglass.

The insulation included in the Loft Floor Insulation Kit is EcoQuilt Expert. EcoQuilt Expert is a 15mm, 6 Layer Multifoil with reflective external layers. The product is thin, flexible, easy to install and does not contain any floating or harmful fibers.

The How-To-Guide is based on a single layer of EcoQuilt Expert. If you wish to proceed with the double layer option, please view the video for more information.

EcoQuilt Expert is equivalent to approx 100mm of Mineral Wool.

SuperQuilt Insulation are the leading UK & European distributor of Multifoil Insulation products. We offer fast next working day delivery to the UK Mainland (Order before 2pm)

Tools

Loft Floor Insulation Kit

Method Steps

Remove Existing Fibreglass / Wool Insulation

Removing the existing loft insulation, such as wool / fibreglass. We would advise that you use a mask and protective clothing to avoid irritating your skin. Also try to remove any dirt, just to make a the taping step (layer) a little easier.
Start the Install

Measure the first length, you can insulate either horizontally or vertically - whatever is best. When you have measured the first length - cut the EcoQuilt so it is manageable and roll it over the joists. You can cut the EcoQuilt Expert Provided by using either our mulitoil scissors or a cutting knife - Both are available in our Multifoil Fitting Kit. When you run your next strip, just ensure that you have overlapped the insulation material by 50mm.
Air Cavity Required

You need an air cavity either side of our product, the optimimum is 25mm. If you are not boarding over the insulation, you can simply just staple directly on to the joists. This way you will have a cavity either side. If you are boarding the loft floor, post insulation. You will need to recess the EcoQuilt so that you are stapling the insulation on to the side of the joists. This will provide you with an air gap behind the board. If your joists are only shallow, you will need to install a batten on your insulation before boarding to create the cavity.
Staple

Staple the Insulation, at 300mm intervals. We do supply the Staple Gun Kit, which includes 5,000 of our 14mm staples - this is included in our Loft Floor Insulation Kit as standard.
Taping & Sealing

Now you just need to seal around all of the edges and joints, to make sure that you have created a vapour control layer. This prevents any cold air entering and helps to keep an ambient internal temperature.
Installing Loft Board

Once 1 Layer of EcoQuilt is installed and tape, and you have created an air gap either by recessing or installing battens, you are ready for the installation of loft boards (if you wish to board). These can be screwed directly into the joists.