Living in the UK is often a cold and wet affair, and having leaks or damp enter your home can be uncomfortable and costly to repair. There’s lots of different forms of insulation, and each has its own range of advantages and drawbacks.
One of the newest materials on the market today is spray foam insulation, which promises a plethora of plus points to homeowners nationwide, including its ability to control airborne moisture. But does spray foam seal out water effectively ? How does it work in practice? We answer all, right here…
A Water-Blown Spray Foam
Spray foam insulation is a non-harmful chemical mixture, blown 50% with water that creates an industrial foam.
It expands when it enters the air, before drying out, and solidifying in its new larger form – which can be up to one hundred times its original size.
Sprayed or Injected
Spray foam can be sprayed directly onto a surface and will adhere to it, or injected through a hole or open area into a cavity, be it wall, ceiling or floor.
A New Building Envelope
The nature of using spray foam insulation over a more traditional panel or stuffing is that its chemical expansion fills the space around it, even if it is awkwardly sized or shaped.
Once dried out, spray foam forms an impressively impenetrable seal, protecting the property and the rooms within it against both thermal and moisture bridging.