Multi-Layer Insulation from NASA

Roofs are built to be open to the air to allow moisture to escape. The tiles or slates are laid on top of each other without being sealed. Unfortunately, this also lets valuable heat escape. It is estimated that 80 percent of heat is lost through the roof.

Heat rises directly, passing through plasterboard ceilings and through the loft space with only 20% stopped by fibreglass insulation. The warm air contains moisture that we have created by cooking, washing or even just breathing.


The warm air, containing moisture will continue to rise until it meets the cold underside of the roof where the valuable warm air will escape through the tiles leaving condensation to form and damage the untreated timbers. With modern living the amount of moisture we create cannot completely escape trapping dangerous condensation on the underside of the roof membrane and damaging roof timbers.

Multi-Layer insulation is a quilt made up of many layers of heat reflecting aluminium and layers of polyethylene webbing that traps warm air within the multi-foil. It is fitted to the underside of the roof and attached to the underside of the roof timbers. This prevents heat from passing through the metal quilt but also allows air from the roof eaves to flow around the back of the quilt keeping the roof timbers dry.

Invented by NASA to keep astronauts safe from the extreme temperatures in space where it can be as low as -100°C and as high as +120°C in low Earth orbit, this remarkable insulation not only prevents heat from escaping it also stops heat entering the property in summer keeping the property cool. It can also get very hot in space. The Space Shuttle exterior would encounter temperatures as high as +1700 degrees Celsius when re-entering Earth orbit. With temperatures rising in the summer months, Multi-Layer insulation will reflect heat away from the roof avoiding the need for costly air-conditioning.

Thermal performance is measured and quoted as a U-Value. The lower the number the better the insulation. 270mm of fibreglass loft insulation has a U-Value of 0.14. Multi-Layer Insulation has a U-value of 0.033 making it 4.2 times greater.

Multi-Layer Insulation is fitted with a moisture control barrier creating a warm roof, preventing condensation forming, protecting your roof and stopping virtually all your heat escaping.

Multi-Layer Insulation provides dual properties within a single product: a vapour control layer and insulation, allowing a reducing in the thickness of the main insulation to achieve the same required U-value. It is designed to be airtight and reduce thermal bridging.

Multi-Layer insulation invented by NASA over 60 years ago to keep astronauts warm in space where it can get as low as -170 degrees Celsius.

The side of the International Space Station pointing away from the Sun can be -150 degrees Celsius whereas the side facing the Sun can reach temperatures as high as +150 degrees Celsius. This unique dual-purpose material will keep the heat in and the heat out.

Sometimes referred to as Space Blanket, this remarkable product is made up of layers of polyethylene between layers of heat reflecting aluminium, creating a product that is capable of keeping the heat in and at the same time keeping the cold or heat out.

It is a product used today by the emergency services to protect the injured in cases of heat stroke where it is vital to lower the body temperature by keeping the heat out or by reversing the material, keeping heat in the body in cases of hypothermia.

Multi-Layer insulation is what our properties need to stop the tremendous loss of valuable heat. NASA invented, affordable and extremely versatile.

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