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Dangers Of Spray Foam Insulation: Safety Myths Debunked

Dangers Of Spray Foam Insulation: Myths Debunked | Home Logic Uk

From potential offgassing, to damaging rafters in roofs, spray foam safety myths certainly abound.

In this article, we aim to debunk each one in turn, and reinstate spray foam’s well-deserved reputation as a first-rate insulation solution, that performs for the life of the building. Let’s begin…

Spray Foam Safety: The 4 Main Myths

Landfill Additions

In terms of installation, spray foam is applied in a thin layer, and expands quickly, up to 100 times its original size.

It’s common for a filled area to overflow, and then the extraneous material needs to be sawed off.

What do you do with this surplus? If you need your attic insulated, you can toss it into the surrounding cavities for additional insulation.

Artificial Venting

As spray foam forms a superior, airtight barrier, it can seal a house completely. This is effective in the prevention of heat transfer, but could cause problems in ventilation is a poor quality spray foam substitute is used. We do want some fresh air inside; we just want it there under our own terms.

By choosing an accredited BBA installer, such as Home Logic, you can assure all areas of your installation are covered.

Unpleasant Odours

This is not an issue with the product itself, but with the installation.  Spray foam requires its installers to undergo a training program, to ensure proper procedures are undertaken to ensure no unpleasant odours are left lingering.

In fact, spray foam is so safe that home-owners can sit downstairs with a cup of tea, while the installers spray their loft.

Moisture Problems

Spray foam is a good air barrier, but if the closed-cell variety is chosen, interior water vapour can still pass through it to the underside of the roof, potentially leading to condensation.

For this reason, we use open cell spray foam for our residential projects, which allows moisture to dissipate through it, thereby minimising the chance of damp.

Dangers Of Spray Foam Insulation: Myths Debunked | Home Logic Uk

Spray Foam Insulation: A Safe, Superior Solution

Spray foam insulation, when installed correctly, does not produce a toxic odour and holds many advantages over other common insulation materials, such as:-

  • Spray foam is more effective in stopping air leakage than other insulation materials
  • Spray foam is a modern technology in comparison to fibreglass and other insulation materials
  • Spray foam insulation expands up to 100 times to fill gaps. Achieving the same insulation seal with fibreglass or cellulose is difficult and costly
  • Spray foam insulation drains water rather than holding it. Fibreglass and celluose don’t repel water, causing damp issues
  • Spray foam stays in place – it doesn’t settle or sag, vertically or horizontally unlike other forms of insulation

Spray foam products have a health and safety record that excels other common insulation methods, which spans over 25 years and covers over 350,000 insulation installations.

Why Spray Foam’s Safer Than Other Materials

Spray Foam Insulation has advantages and qualities that are near on impossible to replace. In fact, other insulates such as fibreglass can face homeowners with additional dangers such as flammability, irritants and water retention.

The EPA recommendations on using Spray Foam Insulation can be found here. This will give you government recognised safe approach on using Spray Foam.

If you are a homeowner or building manager or employee in a building in which SPF will be installed, follow EPA’s Steps to Control Exposure.