Though everybody's favourite insulation material has for years been fibreglass, new alternatives are also entering the market to push fibreglass off its throne. Spray foam insulation is one of them. This insulation material consists of polyurethan and is installed through a small nozzle as a liquid, which will expand after contact with air.

It has several advantages before fibreglass insulation; we will list some of them here:

-         as installing fibreglass leaves  a lot of fibre dust flying around which may irritate your respiratory system, plastic foam will harden and not leave any dust;

-         plastic foam is fire- and water-resistant and is not affected by humidity or insects;

-         plastic foam is thicker in consistence than other insulation materials and therefore provides better protection from cold air and humidity;

-         as the foam expands after spraying, it will fill the smallest holes and gaps in the process.

-         After applying foam, the excessive foam can be cut or rasped so the surface of the insulation would level with wall panels or corners.

However, you need a professional to install your spray foam insulation as special instruments and machinery are needed.