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Why Spray Foam Insulation?

why spray foam insulation

Spray foam insulation helps to reduce heat loss from your property, and also reduces the risk of potential moisture related problems as well. These are just two of the many reasons why spray foam insulation is such a wise investment to make.

This particular type of insulation is totally suitable for all domestic, commercial and public buildings – regardless of the size or complexity of shape. This includes: schools, hospitals and offices. Rather remarkably, spray foam can also be used to insulate vehicles, such as camper vans and public buses.

Nevertheless, you are more than likely to find spray foam insulation within a loft space, usually at joist or rafter level. This is by far one of the most effective methods of insulating your home, available on the market today.

Considering the fact that over 25% of all heat loss escapes through your roof, ensuring your property possesses adequate insulation in the loftspace should be your top priority!

Spray foam keeps your home warm during colder months, and cool during the hotter months of Summer.

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The Reason Why Spray Foam Insulation Works So Well

Below you’ll find a list of reasons why spray foam insulation works so well. Once you spray this material onto the area of application, the chemical mixture begins to expand rapidly, filling every available space.

This change in size ensures all holes and crevices are covered, providing an effective blanket of thermal insulation, that will perform for the life of the building.

Once installed, spray foam will prevent heat from escaping through your roof, without affecting your building’s ability to ventilate.

This is why spray foam insulation is so effective, providing one of the most economical and environmentally friendly methods of insulation available.

The Technical Description

So now you know how it works and why it’s effective, you’re probably wondering what Home Logic Spray Foam is made from. This open cell foam is a 100% water-blown product, consisting of a polyol resin, and an MDI catalyst.

It is available in 3 different forms (each suited to different applications):

  • Home Logic Spray Foam LD-C-50: This rapidly expanding foam is used for insulating your walls, roofs and floors.
  • Home Logic Spray Foam LD-C-70: We employ this version when higher foam density is required.
  • Home Logic Spray Foam LD-P-50: This product contains less catalyst than LD-C-50, which produces a slow rising foam-ideal for filling cavities in sensitive structures.

How Much Heat are You Losing?

Just how much heat is your property losing year on year? Did you know that a quarter of an uninsulated property’s heat is lost through the roof? That’s over 25% of your entire internal heat quality!

This is why spray foam insulation is so tremendously important, enabling you to save hundreds of pounds on your annual energy costs each year.

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Use Spray Foam to Reduce Heat Loss: Here’s How

Heat escapes via both conduction and convection, leaving your home, and dispersing into the cold air outside. Installing loft insulation will prevent this heat from escaping, and significantly reduce the amount of heat that passes through your ceiling.

Warm air will not be allowed to enter your loft, and, therefore, it cannot escape through your roof tiles. Perfect result – proving why spray foam insulation is superior once again!

The layer of spray foam insulation physically traps heat inside your home, keeping it contained within the rooms below. This allows the warm air within your property to stay warmer for much longer, than if your property was inadequately insulated.

It also prevents cold air from outside from infiltrating your home. This means you do not have to manually heat your home, or rely on your thermostat as often, saving you thousands across your lifetime!

Spray Foam Insulation Certification

  • Agrément certificate 08/4598. Icynene LD-C-50
  • Irish Agrément Board 09/0333 Icynene LD-C-50
  • Agrément certificate Pending. Icynene LD-C-70
  • European Technical Approval ETA-08/0018 (VTT)
  • Component chemicals manufactured to ISO 9001
  • AMICA (European Association for Chronic Toxic Injury)
why spray foam insulation

How Well Does Spray Foam Perform?

Structural Performance

Spray foam insulation is self-supporting, meaning it does not slump or sag over time.

It is also incredibly flexible, allowing differential movement of the materials to which it is bonded.

Chemical Performance

Home Logic Spray Foam can be sprayed right onto zinc materials, without causing corrosion.

This product is compatible with most common chemicals, especially those that occur frequently during construction work.

Fire Retardant

Like the vast majority of spray foam products available on the market today, this product does not propagate flames, and does not drip, with excellent self-extinguishing properties.

When installed in a timber construction behind 12mm plasterboard, you can attain a fire rating of B-s1, d0.

Air Tightness

Spray foam insulation is completely airtight, forming an effective air barrier, and impressively impenetrable seal.

This ensures adequate ventilation, without letting cool/warm air transmit through your roof and walls.

Biological Performance

Home Logic Spray Foam does not support the growth of mould, fungus or micro-organisms.

It also repels rodents and insects, offering no place for them to nest, or gain access to your home.


Our Home Logic Spray Foam insulation product is expected to last for the entire life cycle of your building.

It is extremely durable and hard wearing, with very little maintenance required whatsoever.

Does Spray Foam Seal Out Water?

Open-cell spray foam is a little bit different. This type of insulation does not have the same level of resistance to water. Nevertheless, the material is not damaged by water in any way. Once it is wet it does not stay wet forever.

Open-cell spray foam insulation will dry out completely, no matter how many times it becomes wet.

Is Spray Foam Safe to Breathe?

Spray foam has excellent ventilation qualities without compromising on thermal efficiency. The product prevents heat from escaping your home, but it does not prevent the building from being able to breathe.

This is incredibly important, as allowing water vapour to leave the house will prevent issues caused by condensation and other moisture related problems.

Fire Proof Qualities

In many cases, spray foam is protected behind a layer of fire resistant material, unless used within an unoccupied loft space. In this case, the existing ceiling will provide sufficient protection.

If you are planning on insulating an area that is habitable, then a protective layer of fire resistant material is recommended.

Fire resistant material can include a 12.5mm piece of plasterboard, with the joints supported and sealed. We highly recommend that you keep your spray foam application away from heat producing appliances and flue pipes.


Why Spray Foam Insulation Over Fibreglass?

Fibreglass insulation can be found in many homes across the UK, as this was traditionally the main method of insulating a home, before alternatives became available.

At one point in time, many years ago, almost all industry specialists would have suggested that this was the most effective insulation material around. That is why millions of households across the country feature this type of insulation in their loft spaces.

Thankfully, times have changed, and the industry has become a lot more sophisticated in terms of the products on offer, and the procedures used to apply them.

Fibreglass is rapidly becoming outdated, and a lot less effective in comparison with the modern spray foam approach. This is one of the reasons why the use of spray foam is becoming more and more widespread, with more and more people realising the long-term benefits it provides.

But which is better? Take a look at our comparisons below to find out!


Spray foam expands up to 100 times its original size, providing an impenetrable barrier against moisture, mould and mildew.  The expansion process enables this material to fill every nook and cranny with consummate ease.

This creates unbeatable coverage, enabling you to effectively insulate even the most challenging areas of your property.

In comparison, fibreglass insulation is incredibly difficult to work with, as it is supplied in pre-cut shapes and sizes.

Thermal Qualities

As mentioned previously, the thermal quality of spray foam is virtually unmatchable by any other product on the market.

The barrier it creates prevents air from escaping though your ceiling, and stops cold air from coming inside. This creates a more comfortable space for you and your family to enjoy.

Fibreglass acts more like a woolly-jumper, allowing air to pass through the fibres with ease. Air leakage can cause an unnecessary spike in your energy costs!


Fibreglass insulation is known to contain formaldehyde. Although a rarity, in some instances, it has been known to contain asbestos related substances.

The point is, this form of insulation is not the safest product on offer, and can cause harm to you and your family. Spray foam is completely safe to be around, and poses no risk to human health.


Fibreglass material can settle over long periods of time, and may need to be upgraded or completely replaced. This causes maintenance nightmares, and unnecessary expenses-both of which are best avoided.

Spray foam does not settle overtime, and, therefore, you can enjoy the benefits for years and years to come! This is incredibly useful for those who wish to avoid future renovations etc.

We believe this comparison proves just how effective spray foam is in comparison to traditional materials, and why this is always the better option. Spray foam insulation wins hands down, every single time. 

Here at Home Logic, we swear by the sprayed-on approach to insulation, and highly recommend this product as as the best option for saving money on your energy bills overall.

why spray foam insulation

D.I.Y Insulation Problems

Are you thinking about installing new insulation yourself? For some projects, a D.I.Y mentality enables you to save a considerable amount of cash, as it allows you to improve the visual and performance quality of your home, without paying someone to do the job on your behalf.

However, when it comes to insulation, we highly recommend that you leave this to the professionals. Otherwise, you may not obtain the highest level of accuracy or results.

It is extremely unlikely that you will have the same level of training and experience we have here at Home Logic. Therefore, we strongly advise you to leave the task to us! Trust us, we’ve done this job thousands of times before!

So put your feet up, avoid the hassle, and let us satisfy your insulation requirements on your behalf.

Benefits of Hiring Professionals

  • Achieve accurate and effective results
  • Do not lift a finger throughout the entire process
  • Improve your property’s thermal and insulation qualities
  • Enjoy the benefits for years to come
  • Total safety is assured throughout installation
  • Obtain professional advice on management and maintenance
  • Save cash on high-spec equipment and materials

Spray Foam Insulation Advantages

The advantages of spray foam are almost endless, proving time and time again why spray foam insulation is the best way forward. You can book a free site survey today to find out how this product can benefit your home as well!

We can provide a personalised list of benefits, requirements and solutions to fit your every insulation management request.

Without further ado, here is our list of reasons why spray foam insulation is your best available choice:

Increased Level of Comfort

A sealed, warmer home environment is a lot more comfortable for all of the inhabitants inside. Spray foam can make draughts and cold spots a thing of the past in next to no time at all.

All of the gaps, crevices and holes within your area of application will be taken care of, and covered effectively. This will contribute towards a consistent temperature, all year round.

Save Money on Energy Bills

This consistent temperature will help make a significant cut in your energy bills, by reducing the level of manual heat required within your home.

This can lead to potential savings that reach triple figures over the course of a year. This is especially true during extended periods of cold weather.

Create an Effective Sound Barrier

Spray foam insulation also provides an effective sound barrier, blocking unwanted noises from entering your home. It also helps to improve your internal acoustics, so less noise leaves your house too!

This level of sound control further contributes towards the comfort and relaxation of your property.

Protect Against Moisture

Moisture can be a huge issue if it is allowed to wreak havoc in your home. The presence of excessive moisture in the air can lead to seriously ill effects on your property, causing damage to your structure and interior décor.

Spray foam insulation prevents heat escaping from your home, but it does not stand in the way of moisture or water vapour. This allows your property to breathe properly, as well as ensuring adequate ventilation, effectively combating moisture build-up and related problems.

Health Benefits

Airborne pollutants can have negative effects on many people suffering with conditions, such as asthma and bronchitis. Pollutants may include: dust, carbon monoxide and many other airborne particles.

This can also exacerbate a number of existing allergies, creating an uncomfortable environment for sufferers within your home. You can effectively seal your home off, and protect it from these pollutants, with the use of Home Logic Spray Foam.

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Where Can You Use Spray Foam Insulation?

New Build Properties

Home Logic Spray Foam is the perfect solution for insulating walls and roofs in new buildings. This is why spray foam insulation is being used more and more often with new build projects across the UK.

This product provides a high-quality thermal insulation, whilst also minimising air leakage from your home. As mentioned above, spray foam also reduces transmission of contaminants, as well as reducing the levels of noise entering from outside.

This product will flex and move with the rest of your construction, therefore improving the long-term airtightness, and reducing the energy use of your building.

You can insulate timber or steel frame walls; the material does not really matter. You can also insulate cavity walls as well as solid walls, in order to preserve their existing insulating qualities.

Because our product expands when sprayed in to place, it is ridiculously easy to form a continuous layer of insulation. This is true even in the most challenging of spaces!

Refurbished Properties

Home Logic Spray Foam can also be used to upgrade existing walls, by insulating internally. The internal face needs to be battened out to the required depth, before our product is sprayed to the depth of the battens, and then trimmed.

Plasterboard is then applied to finish the job, covering the insulating material completely.

Condensation risk analysis should be conducted before any work is carried out, as insulating the inner face may change the temperature profile through the wall. Analysis will determine if a vapour control layer is required.

Refurbished Floors

Suspended timber floors can often suffer from heat loss, caused by conduction to the underfloor void. If you have sub-floor ventilation in place to prevent damp, this can also result in draughts between the boards, and at the floor perimeter.

Spray foam can be used on the underside of these boards and to fill the space between your joists.

This application of insulation will lower the level of conduction heat loss through the floor, making your floorboards a little warmer underneath your feet. This will also eliminate air infiltration through the deck and the perimeter.

Refurbished Roofs

Home Logic Spray Foam can also be sprayed on the underside of your roof tiles and roof slates, in order to upgrade the thermal quality and performance of your existing pitched roof.

In some cases, it may be necessary to fix cross battens to the underside of the rafters, increasing the depth of spray foam. If the loft is going to be used as an occupied space, then the foam materials should be protected with a fire-resistant covering. This could include pieces of 12.5mm plasterboard.

Contact Home Logic Today

Would you like some more information on why spray foam insulation works so well? Please do not hesitate to get in touch – we are here to help, regardless of your insulation requirements, and no matter how extensive your project may be.

We can provide expert advice, some general tips and pointers, or simply suggest a tailored solution to solve your insulation management requests.

Just give us a call on 800 1700 636 for more details on why spray foam insulation is best for your application needs. One of our friendly and approachable customer service members is waiting to take your call.

Are you trying to contact us outside of our usual operating hours? Not a problem! You can send us an email instead.

Simply send a message along to survey@homelogic.co.uk and we’ll pick it up as soon as we are back in the office! Remember, the only stupid question is the one you do not ask, so get in touch today!