Spray Foam Loft Insulation (Coming Soon)

What is Spray Foam Insulation?

Spray foam insulation is a versatile form of insulation that can be used as an alternative to fibreglass, foam board, mineral wool or others. Also known as polyurethane foam insulation, it is sprayed as a liquid onto a surface where it reacts and expands in size. Hardening into a rigid substance, it forms a barrier that prevents heat exchange, as well as being waterproof and providing additional structural support.

Spray foam has been used as a form of insulation for decades (with Foam Spray at the forefront of its developments since the beginning!) and its popularity is growing. Now widely recognised as one of the most efficient forms of insulation, more and more people want to know what it is and why it’s so great.


Spray foam insulation is a form of polyurethane. For the chemists out there, polyurethane consists of organic units (largely hydrocarbons) joined by urethane groups. A urethane group is formed by the reaction of a polyol with an isocyanate. For the rest of us, polyurethane describes material made up of a specific chemical structure. It results in different substances according to the exact chemical makeup of each kind of polyurethane. It includes material used in sponges, tyres, foam seals and, in our case, insulation.

Polyurethane is created when two materials, polyol resin and isocyanate, are combined. They react together and expand from a liquid into a solid to create the insulation.

This video below shows the impact and developments provided by this service.

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