Go back
Home Logic Article

Pitched Roof Insulation

pitched roof insulation

In terms of energy efficiency, pitched roof insulation is vital. Hot air rises upwards, and without adequate insulation in place, will account for up to 40% of heat loss in a home.

According to the Energy Saving Trust, roof insulation is effective for at least 40 years on average; a statistic which can be furthered by sourcing the right insulation material.

Furthermore, by insulating with a modern material, such as Icynene spray foam, you will reap the rewards of year on year savings on your bills, safe in the knowledge that both your finances and comfort are taken care of for the long-term.

What’s the Difference Between Warm and Cold Insulation for Pitched Roofs?

In general, the main difference between warm and cold insulation concerns the purpose of the room.

The simplest and cheapest choice is cold loft insulation-a perfectly viable option if you’ll be using the space solely for storage.

In this instance, the insulation is placed over and between the wooden joists, above the ceiling of your home’s top floor.

Although it will keep your living space cosy and comfortable, your roof area will remain cold in Winter, and hot during the Summer.

However, if you’re aiming to transform your roof space into a habitable room, warm roof insulation will be required. 

This involves installing the insulation directly under the roof in the plane of the roof’s pitch (slope.)

In this respect, spray foam is the perfect product for this project. Not only does it provide a barrier against heat loss in Winter; it also keeps the space cool and comfortable in Summer-making the room conducive to year-round use.

One word of warning: if installing warm roof insulation, ventilation below the roof tiles is paramount. This prevents moisture from building through and around the tiles, keeping condensation in check.

pitched roof insulation

Although ideal for roof restoration, it should be stressed that broken or misplaced tiles will need repairing before spray foam can be applied

Is Spray Foam Suitable for Pitched Roofs?

Absolutely! In fact, its impressively expansive nature makes it perfect for hard to reach areas, such as the roof space, where issues with accessibility often come to the fore.

Unlike traditional insulation methods, such as fibreglass and cellulose, spray foam expands up to 100 times its original size on impact, accommodating the most niche of constructions with ease.

However, there are several key points to bear in mind regarding pitched roof insulation:

Key Consideration No.1: Will Repairs Be Needed Prior To Application?

Although ideal for roof restoration, it should be stressed that broken or misplaced roof tiles will need repairing before the product can be applied.

Key Consideration No.2: How Can I Ensure Adequate Ventilation?

The ventilation requirements for a pitched roof depend on the type of membrane installed under the roof slates or tiles.

If your roof membrane possesses high resistance to moisture, current building regulations state that a 50mm ventilation gap is required to give your roof adequate room to breathe.

pitched roof insulation

The price of spray foam pitched roof insulation will be determined by 4 fundamental factors: the thickness required, the type of foam that's used (open or closed cell), the size of the area you want to insulate, as well as how the foam itself is installed

Is Spray Foam Pitched Roof Insulation Expensive?

Traditional insulation materials may be considerably cheaper to buy, but this proves to be a false economy long-term.

Fibrous materials, such as cellulose, simply don’t have the same lifespan as spray foam. Although resistant to fire, if your roof has a major leak, its efficacy will be impaired.

In contrast, spray foam will perform for the life of the building, making it an ideal investment if you’re looking at living in your property long-term.

You’ll also benefit from year on year savings on your energy bills, as well as less money being spent on repairing detrimental damage to your roof timbers from damp.

Overall, the cost of spray foam pitched roof insulation will be determined by 4 fundamental factors: the thickness required, the type of foam that’s used (open or closed cell), the size of the area you want to insulate, as well as how the foam itself is installed.

The National Insulation Association suggests a rough guide price of around £20-£50 per square metre, although this is relative.

Every construction is unique; a thorough inspection of your roof will provide a more accurate indication of price. It will also help you assess whether you need to budget for additional repair work, and, if so, how much this will add to the cost.

pitched roof insulation

From increasing your EPC rating, to blocking out airborne pollutants, spray foam is far from a one trick pony-and compares favourably to older materials

What Will Spray Foam Pitched Roof Insulation Offer My Home?

Where to start?! From blocking out airborne pollutants, to protecting your pitched roof from pests, the benefits of spray foam pitched roof insulation are pretty much endless.

So, without further ado, let’s explore each advantage in a little more detail:

Plus Point No.1: It Increases Your EPC Rating

From April 1st this year, it became unlawful to rent a property that does not comply with the minimum energy performance rating (E)

As most heat loss occurs through the roof, insulating this area alone makes sound financial sense-and is one of the easiest ways to improve your EPC rating overall.

Plus Point No.2: It Reduces Rodent Activity In Your Roof

Unfortunately, pitched roofs are the prime stomping grounds for rodents-with many taking up residence for a good few years before homeowners spot the signs.

For older properties, rodents are a very real risk; the roofs are usually packed with a substantial amount of fibreglass-a material which proves perfect for nesting and is a food source for rats and mice.

In contrast, spray foam pitched roof insulation provides an enviably airtight barrier-perfect for pest prevention.

By obstructing the gaps that traditional insulation materials can provide, spray foam insulation can effectively rat proof a room by eliminating their physical access.

What’s more, the chemical composition of spray foam makes it an undesirable snack for pests.

pitched roof insulation

Noisy neighbours leaving you feeling dog tired? Spray foam makes getting a good night's sleep the rule rather than the exception, thanks to its superior soundproofing properties

Plus Point No.3: It Offers Superior Soundproofing Properties

Noise niggles are the number one bugbear among our customers-and it’s easy to see why. 

The success of our whole day depends on the quality of our sleep. Yet if we live near a busy main flight path, or have closet ravers for neighbours, we’re unlikely to achieve our recommended 8 hours.

Thankfully, spray foam pitched roof insulation can assist in this regard as well.

In most instances, it will be applied to the underside of your roof to create a comprehensive barrier of protection against airborne noise pollution. 

Once installed, spray foam provides sound reduction qualities of 40% between frequencies of 100hz and 5000hz.

Plus Point No.4: It Blocks Out Airborne Pollutants

Breathing conditions, such as asthma, are aggravated by airborne allergens, such as dust, dirt, and, in extreme cases, even carbon monoxide.

By selecting spray foam insulation, your pitched roof will be sealed from these pesky pollutants, enabling you to transform your roof into a habitable room-with far healthier conditions inside.

Plus Point No.5: It Helps You Reclaim Your Roof Space

For most homeowners, space is at a premium. As a result, more and more of us are seeking to transform areas resigned to storage, into fully habitable rooms.

A thorough tidy up can certainly help to extend the space, but if the internal temperature fluctuates (a common problem in roofs and lofts), you’re hardly going to want to spend your waking hours in the room.

By tackling temperature fluctuations, spray foam creates ambient conditions inside, reducing your reliance on additional appliances to make up for the shortfall of heat, or in the case of Summer, keep the roof comfortably cool. Perfect!

pitched roof insulation

Unlike other products, which lose their efficacy over time, spray foam performs for the life of the building, providing a refreshingly resilient roof!

Can I Install Pitched Roof Insulation Myself?

Although tempting to go down the D.I.Y route, professional installation is advised for several reasons-with preserving your peace of mind at the very top of the list.

In general, the majority of accredited installers will provide a 25-year warranty with the product. This means that should anything start to go wrong post application, it will be the sole responsibility of the company to resolve it-at no extra expense to yourself.

For homeowners with an inaccessible roof space, hiring professionals is key to success. Applying spray foam correctly is a very exacting science; if applied in the wrong ratio, shrinkage can occur, as the spray foam pulls away from the framing.

The result? Compromised thermal performance that requires professional attention to resolve it.

Can Spray Foam Be Used for Roof Restoration as Well?

For sure! Although broken or missing roof tiles will need to be fixed before the spray foam can be applied, once installed, the product provides substantial support to the roof.

What’s more, unlike other products, which require frequent replacement, spray foam performs for the life of the building, providing a far more resilient roof at a fraction of the cost of a full roof replacement.

Is Spray Foam Suitable for Pitched Roofs?

Absolutely! In fact, its impressively expansive nature makes it perfect for hard to reach areas, such as the roof space, where issues with accessibility often come to the fore.

Unlike traditional insulation methods, such as fibreglass and cellulose, spray foam expands up to 100 times its original size on impact, accommodating the most niche of constructions with ease.

However, there are several key points to bear in mind regarding pitched roof insulation:

Key Consideration No.1: Will Repairs Be Needed Prior To Application?

Although ideal for roof restoration, it should be stressed that broken or misplaced roof tiles will need repairing before the product can be applied.

Key Consideration No.2: How Can I Ensure Adequate Ventilation?

The ventilation requirements for a pitched roof depend on the type of membrane installed under the roof slates or tiles.

If your roof membrane possesses high resistance to moisture, current building regulations state that a 50mm ventilation gap is required to give your roof adequate room to breathe.

pitched-roof-insulation3.jpg

The price of spray foam pitched roof insulation will be determined by 4 fundamental factors: the thickness required, the type of foam that's used (open or closed cell), the size of the area you want to insulate, as well as how the foam itself is installed

 

Is Spray Foam Pitched Roof Insulation Expensive?

Traditional insulation materials may be considerably cheaper to buy, but this proves to be a false economy long-term.

Fibrous materials, such as cellulose, simply don’t have the same lifespan as spray foam. Although resistant to fire, if your roof has a major leak, its efficacy will be impaired.

In contrast, spray foam will perform for the life of the building, making it an ideal investment if you’re looking at living in your property long-term.

You’ll also benefit from year on year savings on your energy bills, as well as less money being spent on repairing detrimental damage to your roof timbers from damp.

Overall, the cost of spray foam pitched roof insulation will be determined by 4 fundamental factors: the thickness required, the type of foam that’s used (open or closed cell), the size of the area you want to insulate, as well as how the foam itself is installed.

The National Insulation Association suggests a rough guide price of around £20-£50 per square metre, although this is relative.

Every construction is unique; a thorough inspection of your roof will provide a more accurate indication of price. It will also help you assess whether you need to budget for additional repair work, and, if so, how much this will add to the cost.

pitched-roof-insulation4.jpg

From increasing your EPC rating, to blocking out airborne pollutants, spray foam is far from a one trick pony-and compares favourably to older materials

What Will Spray Foam Pitched Roof Insulation Offer My Home?

Where to start?! From blocking out airborne pollutants, to protecting your pitched roof from pests, the benefits of spray foam pitched roof insulation are pretty much endless.

So, without further ado, let’s explore each advantage in a little more detail:

Plus Point No.1: It Increases Your EPC Rating

From April 1st this year, it became unlawful to rent a property that does not comply with the minimum energy performance rating (E)

As most heat loss occurs through the roof, insulating this area alone makes sound financial sense-and is one of the easiest ways to improve your EPC rating overall.

Plus Point No.2: It Reduces Rodent Activity In Your Roof

Unfortunately, pitched roofs are the prime stomping grounds for rodents-with many taking up residence for a good few years before homeowners spot the signs.

For older properties, rodents are a very real risk; the roofs are usually packed with a substantial amount of fibreglass-a material which proves perfect for nesting and is a food source for rats and mice.

In contrast, spray foam pitched roof insulation provides an enviably airtight barrier-perfect for pest prevention.

By obstructing the gaps that traditional insulation materials can provide, spray foam insulation can effectively rat proof a room by eliminating their physical access.

What’s more, the chemical composition of spray foam makes it an undesirable snack for pests.

pitched-roof-insulation5.jpg

Noisy neighbours leaving you feeling dog tired? Spray foam makes getting a good night's sleep the rule rather than the exception, thanks to its superior soundproofing properties

Plus Point No.3: It Offers Superior Soundproofing Properties

Noise niggles are the number one bugbear among our customers-and it’s easy to see why. 

The success of our whole day depends on the quality of our sleep. Yet if we live near a busy main flight path, or have closet ravers for neighbours, we’re unlikely to achieve our recommended 8 hours.

Thankfully, spray foam pitched roof insulation can assist in this regard as well.

In most instances, it will be applied to the underside of your roof to create a comprehensive barrier of protection against airborne noise pollution. 

Once installed, spray foam provides sound reduction qualities of 40% between frequencies of 100hz and 5000hz.

Plus Point No.4: It Blocks Out Airborne Pollutants

Breathing conditions, such as asthma, are aggravated by airborne allergens, such as dust, dirt, and, in extreme cases, even carbon monoxide.

By selecting spray foam insulation, your pitched roof will be sealed from these pesky pollutants, enabling you to transform your roof into a habitable room-with far healthier conditions inside.

Plus Point No.5: It Helps You Reclaim Your Roof Space

For most homeowners, space is at a premium. As a result, more and more of us are seeking to transform areas resigned to storage, into fully habitable rooms.

A thorough tidy up can certainly help to extend the space, but if the internal temperature fluctuates (a common problem in roofs and lofts), you’re hardly going to want to spend your waking hours in the room.

By tackling temperature fluctuations, spray foam creates ambient conditions inside, reducing your reliance on additional appliances to make up for the shortfall of heat, or in the case of Summer, keep the roof comfortably cool. Perfect!

pitched-roof-insulation1.jpg

Unlike other products, which lose their efficacy over time, spray foam performs for the life of the building, providing a refreshingly resilient roof!

Can I Install Pitched Roof Insulation Myself?

Although tempting to go down the D.I.Y route, professional installation is advised for several reasons-with preserving your peace of mind at the very top of the list.

In general, the majority of accredited installers will provide a 25-year warranty with the product. This means that should anything start to go wrong post application, it will be the sole responsibility of the company to resolve it-at no extra expense to yourself.

For homeowners with an inaccessible roof space, hiring professionals is key to success. Applying spray foam correctly is a very exacting science; if applied in the wrong ratio, shrinkage can occur, as the spray foam pulls away from the framing.

The result? Compromised thermal performance that requires professional attention to resolve it.

Can Spray Foam Be Used for Roof Restoration as Well?

For sure! Although broken or missing roof tiles will need to be fixed before the spray foam can be applied, once installed, the product provides substantial support to the roof.

What’s more, unlike other products, which require frequent replacement, spray foam performs for the life of the building, providing a far more resilient roof at a fraction of the cost of a full roof replacement.