Frequently Asked Questions About SupaSoft Insulation

SupaSoft is made from recycled PET (polyester) and is extremely durable. Because the binder is made from PET it does not degrade or slump over time. This means that SupaSoft will last many decades so once installed there is no need to replace.  The insulation will last at least as long as typical design lifetimes for new buildings which is 60 years.

SupaSoft has a density of 15.5 kg/m3.

SupaSoft is building insulation made from recycled PET (polyester) that comes from recycled plastic bottles and packaging. Certainly, a great way to use waste single use plastic.

SupaSoft can provide effective sound insulation at thicknesses of 100mm or greater. For thicknesses of less than 100mm we suggest using a denser insulation.

There are approximately 800 recycled plastic bottles in every pack of SupaSoft, so that equates to 136.7 per m2

SupaSoft performs about 10% better than conventional fibreglass loft roll. Find out more – read the factsheets available to download.

The fibres in SupaSoft react to fire by rapidly melting and retreating away from the flame source.

SupaSoft is non-hazardous and is not a controlled substance under the COSHH regulations. However, we can provide a safety data sheet on request.

SupaSoft is made from the same material used to fill jackets, pillows and duvets. SupaSoft is highly unlikely to cause allergies.  However, if you have a specific allergy to polyester you should take care.

For an existing building use 250mm.  For added performance in an existing building or for a new build use 300mm.

Always insulate between joists and over joists wherever possible. The layer over the joists should run crossways.  This will make sure no air gaps run through the insulation from the ceiling level.

SupaSoft can be used in some pitched roof applications. Please contact us for further advice.

SupaSoft is easy to install. Please read “Insulating your loft with SupaSoft”

Firstly, simply do not push the insulation tight against the roofing felt at the eaves level.  Secondly you could insert eaves ventilation trays to maintain a ventilation opening.

Attach the insulation to the inside of the van using either strong double sided carpet tape or contact carpet adhesive.

For a clean cut use a scalloped edge blade such as an insulation saw or scalloped edge kitchen knife.

We fire test our products rather than specific systems. Because a 1-hour fire rated floor is a system of products, you should consult the floor system supplier.

Certainly, as with all insulation, electrical cables should be sufficiently rated and advice taken from a qualified electrician.

We don’t recommend using SupaSoft in masonry cavities.

You can insulate around IC rated recessed lights. For non-IC rated recessed you must ensure a minimum of 75mm gap between the light and insulation. Alternatively, you can protect the light using an appropriate fire rated hood. Ensure all electrical cables are appropriately sited for their rating.

SupaSoft can be used in some wall applications. Please contact us for further advice.

We would recommend installing loft legs over the joists and boarding on top of the loft leg. This ensures that you have an effective depth of insulation. Boarding directly onto joists will significantly reduce the thickness of insulation and therefore the overall performance.

Yes. The amount of additional insulation will depend on how much existing insulation is in place and what condition it is in. For instance, if the insulation is in very poor condition we would recommend adding 250mm of SupaSoft on top. However, if it is in very good condition, add sufficient SupaSoft to achieve a total insulation thickness of 270mm. Check under and around existing insulation for any signs of damp or water damage.

Because we do not install the insulation, we are unable to offer a guarantee.

Insulation prevents heat loss which in turn reduces the amount of energy used to heat your home and the amount it costs to heat your home. Insulation does many other things such as preventing your home from getting too hot in the summer and helps reduce the impact of sound.

The best thing to do with off-cuts is to lay them on top of existing insulation.  The off cuts will help improve the insulation in the areas they are laid on because they increase insulation thickness.

Install SupaSoft to help reduce the amount of energy used to heat your home. What’s more SupaSoft is made from recycled PET that comes from recycled bottles and packaging. SupaSoft take waste single use plastic and puts it to a durable end use, taking it out of circulation for many decades. Because SupaSoft lasts the life of the building, the impact of replacing and disposing of insulation is greatly reduced. Click here to download our verified Environmental Product Declaration (EPD).

SupaSoft is more expensive than glass fibre but less expensive than rock fibre insulation.

There are approximately 800 recycled plastic bottles in every pack of SupaSoft, so that equates to 136.7 per m2

Noise movement can be a very complex problem to solve. However, specialist acoustic consultants can help. Use SupaSoft as part of noise reducing measures in a building.

A number of measures are required to reduce noise one of which is to install an absorbent insulation between the joists. Use SupaSoft as an effective absorbent material for depths of greater than 100mm.

Attach the insulation to the inside of the van using either strong double sided carpet tape or contact carpet adhesive.

The availability of grants depends on your circumstances and what is available in a particular area at the time.  We suggest you contact the Energy Savings Trust for further information.

Yes. SupaSoft is made from the same material as a plastic bottle, and it can be recycled in the same way.

We would recommend installing loft legs over the joists and boarding on top of the loft leg. This ensures that you have an effective depth of insulation. Boarding directly onto joists will significantly reduce the thickness of insulation and therefore the overall performance.