Go back
Spray Foam Insulation

Spray Foam Insulation UK

spray foam insulation uk

One of the most popular types of spray foam insulation UK in the past years is Icynene. Suitable for domestic, commercial, and public buildings, spray foam insulation can also be used to insulate vehicles like camper vans and buses.

So without further ado, let us introduce you to this marvellously, multi-purpose product, and reveal what spray foam can do for you and your home. Let’s begin..

A Short History of Spray Foam

Spray foam insulation was developed some 30 years ago. Back then, spray foam was developed as a safe alternative to urea formaldehyde insulation.

Until today, spray foam remains the only 100% water-blown insulation in the world.

Icynene spray foam insulation is a two-part foam, consisting of MDI catalyst and polyol resin. You can get it in three types. Your contractor is your best consultant for which type to choose.

The first type if Icyenene LD-C-50, a rapidly expanding foam for spraying onto surfaces and insulating walls, floors, and roofs.

The second is LD-C-70, a rapidly expanding foam product for surfaces where higher density is required. The LD-P-50 contains less catalyst, which results in a slow rise foam. This product is ideal for filling cavities in sensitive structures.

spray foam insulation uk

The best part about spray foam insulation is that it provides adequate airtightness all round. The biggest reason for heat loss from buildings is air leakage. When applied by a professional, spray foam provides an airtight barrier, reducing air movement between the building’s interior, and outside

Performance

In terms of thermal insulation, spray foam reduces heat loss by conduction through the building fabric. The foam forms a continuous layer of insulation, and prevents gaps and breaks within it. Unlike rigid insulation boards, spray foam does not allow any gaps.

In addition to this, its innate flexibility, enables it to accommodate differential movement produced by drying out, and temperature fluctuations.

In terms of condensation, this forms when high concentrations of water vapour form behind impermeable layers on the cold side of the thermal insulation. This causes decay and rust of building materials.

The eventual result is structural damage, and reduction of thermal performance. Before installing spray foam, you need to ensure water vapour is extracted from the space.

Spray Foam: Additional Benefits

Speaking of water, spray foam will not “wick” water. However, it is not a fully waterproof measure, and will not prevent passage of liquid water. However, when wetted, the foam retains its shape without distorting or shrinking. Once dry, the product regains its performance.

In other words, open cell spray foam is vapour permeable. This makes the product great for “breathing wall” constructions, which rely on materials of low vapour resistance.

The best part about spray foam insulation is that it provides adequate airtightness all round. The biggest reason for heat loss from buildings is air leakage.

When applied by a professional, spray foam provides an airtight barrier, reducing air movement between the building’s interior, and outside.

You can also apply spray foam to the underside of the roof, reducing transmission of external noise into the building.

In terms of acoustic performance, spray foam does help with transmission of sound between rooms in buildings, and into buildings from outside. This prevents disturbance to the occupants of the home.

spray foam insulation uk

The best part about spray foam insulation is that it provides adequate airtightness all round. The biggest reason for heat loss from buildings is air leakage. When applied by a professional, spray foam provides an airtight barrier, reducing air movement between the building’s interior, and outside

Advantages of Spray Foam Insulation

Now that we’ve looked at the performances, let’s summarise the benefits of using spray foam insulation.  Spray foam is superior to common products like fiberglass and cellulose, and creates a thermal envelope controlling the air inside of the building.

No other insulation product can do the same. Here are some of the main advantages of using this marvellously multi-purpose material:

  • Helps you reduce your energy bills by up to 50% per year
  • Reduces air and moisture infiltration.
  • Reduces the wear and tear on heating, ventilating, and air conditioning products (HVAC)
  • The R-value of spray foam remains stable over time. Spray foam will not shrink or sag
  • Reduces noise, making your home cosy and comfortable
  • Reduces the likelihood of mould and mildew
  • Performs for the life of the building
  • Reduces dust and pollen infiltration

Disadvantages of Spray Foam Insulation

There are also some disadvantages of using spray foam insulation. However, the pros vastly outweigh the cons of using spray foam insulation in the UK.

  • The upfront cost is higher than fiberglass and cellulose insulation. However, you will get back your investment shortly, thanks to the reduced cost of energy bills
  • The process can be messy. Cleaning is a must after installing spray foam insulation

spray foam insulation uk

The eventual result is structural damage, and reduction of thermal performance. Before installing spray foam, you need to ensure water vapour is extracted from the space

Common Questions Regarding Spray Foam Insulation

In order to better understand the qualities and benefits of spray foam insulation UK, let’s try and answer some of the common questions.

– Why is spray foam better than fiberglass?

The primary reason why spray foam performs better than fiberglass is due to its ability to provide an air-tight seal. The sealing properties of spray foam are superior over fiberglass. No matter how well you insulate, fiberglass will never provide an air barrier. That means air will always be able to move through it.

As a result, there is condensation inside the walls, and eventually, mould appears.

– Is there a difference between open and closed cell spray foam insulation UK?

Yes, there is a difference. Both are great insulators, and both provide a thermal and air barrier. The difference is closed-cell spray foam is waterproof, while open-cell allows water to move through and dry. Now, the thing is, insulation should not stop water. Instead, water needs to be able to dry out.

– Should you ventilate the attic once spray foam is installed?

No, once you apply spray foam to the underside of the roof deck, you create conditioned space in the attic area with a much lower temperature. In other words, your attic becomes a fully habitable room.

– Is spray foam better for sound insulation?

In addition to providing an air barrier, spray foam also can block out noise from outside. Spray foam has properties that attenuate sound more effectively than any other insulation type. Much of that is because of the density of spray foam

– Can you install spray foam in an existing home?

Of course. Spray foam is usually installed in new buildings during the building process. However, you can also use spray foam for renovation and refurbishing projects as well.

spray foam insulation uk

Exterior uses for spray foam include: electrical and gas penetrations, wall joints in the garage ceiling, around exterior faucets, stone wall repair, water feature fillers, the spot where siding and foundation meet, and many more!

Spray Foam: Priority Areas To Insulate

Now that we know the benefits of spray foam insulation UK, let’s take a look at some popular places for installing insulation. Put simply, you can add spray foam insulation to almost any place in your home. Here’s a selection of spray foam tips and tricks:

  • Install spray foam in the basement to seal pipes, plumbing, cracks, framing, and sills. You can use spray foam in the same spirit in the crawl space.
  • Use spray foam for your heating, ventilation, and air conditioning to optimise the performance of the heating and cooling system. Use spray foam around the pipes, floor registers, and condensers.
  • Exterior uses for spray foam include: electrical and gas penetrations, wall joints in the garage ceiling, around exterior faucets, stone wall repair, water feature fillers, the spot where siding and foundation meet, and many more.

Ready to take the next step? Request your free roof inspection today by calling 0800 1700 636, or by simply clicking the button below!