Blanket Insulation Rolls
Get a Free, No Obligation Quote
Blanket insulation rolls are one of the most widely used and effective forms of Loft Insulation in the UK. If your loft or attic space feels cold in winter or overheats in summer, upgrading to modern insulation rolls can make a significant difference to comfort and energy efficiency.
Often referred to as mineral wool rolls, this type of attic insulation is designed to sit between and over joists, helping to reduce heat loss through the roof. In fact, the Energy Saving Trust states that around 25 percent of a home’s heat can be lost through an uninsulated roof.
For homeowners in East Sussex, blanket loft insulation remains one of the most practical and cost-effective ways to improve energy performance without major structural changes.
What Are Blanket Insulation Rolls?
Blanket insulation rolls are large rolls of flexible mineral wool insulation. They are typically supplied in long sheets that can be cut to size and laid across loft joists.
Modern loft insulation recommendations suggest a depth of around 270mm to achieve optimal thermal performance in most UK homes. This usually involves laying insulation between joists first, then adding a second layer across the joists to reduce cold bridging.
This type of attic insulation works by trapping air within the fibres, slowing down heat transfer and helping to maintain a consistent indoor temperature.
Blanket insulation is suitable for most standard pitched roofs and is particularly common in traditional houses across Eastbourne, Hailsham, Seaford, Bexhill and Hastings.
.
How Blanket Loft Insulation Is Installed
Good installation protects against damp, prevents cold spots and ensures insulation performs efficiently for years to come.
If you are planning to board your loft for storage, raised loft boarding systems are often installed above insulation to prevent compression.
Are Blanket Insulation Rolls Compatible with Loft Boarding?
One common concern homeowners have is whether they can still use their loft for storage after upgrading insulation.
The answer is yes, but insulation must not be compressed. Compressing mineral wool reduces its thermal performance and can increase the risk of condensation issues.
The correct solution is raised loft boarding. This creates a platform above the insulation layer, protecting its depth while allowing safe storage.
When Loft Insulation Installers and boarding specialists work together, the result is a loft that is both energy efficient and usable.
Professional Loft Insulation Installers will typically:
Inspect the existing insulation and remove any damaged material
Check ventilation pathways to prevent condensation build-up
Install the first layer of insulation between joists
Add a second layer across joists to reach recommended depth
Maintain airflow near the eaves
Ensure electrical cables are not trapped or compressed
Benefits of Blanket Loft Insulation
There are several reasons blanket insulation remains the most common form of attic insulation in the UK:
- Improves energy efficiency and reduces heat loss
- Suitable for most loft shapes and sizes
- Relatively quick to install
- Works well alongside raised loft boarding
- Long lifespan when properly installed
- Helps reduce heating bills
Blanket rolls are also versatile and easy to work around pipework and wiring when installed by experienced Installers of Loft Insulation.
Limitations of Blanket Loft Insulation
While blanket insulation rolls are suitable for most homes, there are some considerations:
- They require sufficient depth to meet modern standards
- They may not be ideal for extremely low headroom lofts
- Poor installation can lead to ventilation problems
- Older insulation may need upgrading to meet current recommendations
For complex roof shapes or converted lofts, other insulation types may sometimes be more suitable.
Is Blanket Loft Insulation Right for Your Home?
The best way to determine suitability is through a professional assessment. Experienced Installers of Loft Insulation can evaluate your current insulation depth, ventilation and access to ensure the correct solution is recommended. Generally, though, blanket loft insulation is ideal for:
Standard pitched roofs
Homes with accessible loft spaces
Properties where insulation can be topped up to modern depths
Homeowners looking to improve energy efficiency
It may be less suitable where loft height is extremely restricted or where specialist insulation systems are required.
Other Types of Loft Insulation to Consider
Rigid Board Insulation
Ideal for loft conversions or if you need to insulate under a pitched roof. Provides excellent thermal performance and is often used for rafter-level insulation.
Multifoil Insulation
Thin and space-saving with reflective properties. Works well in combination with other insulation types.
Loose-Fill Insulation
Perfect for topping up existing insulation or awkward corners. Lightweight, quick to apply, and great for uneven loft spaces.
Blanket Roll Insulation FAQ’s
How thick should blanket loft insulation be?
Current UK guidance recommends around 270mm total depth for effective Loft Insulation in most homes.
Can new insulation be laid over old insulation?
Yes, provided the existing insulation is dry and in good condition. Many homes benefit from topping up to modern standards.
Will blanket insulation cause damp?
No, when installed correctly with proper ventilation, attic insulation helps reduce condensation rather than cause it.
Can I board over blanket insulation?
Yes, but insulation must not be compressed. Raised boarding systems should be installed above the insulation.
How long does blanket loft insulation last?
Mineral wool insulation can last decades when installed properly and kept dry.
Where Do Loft Invaders Cover?
We proudly serve homes across East Sussex, including Eastbourne, Hastings and the surrounding areas, including Hailsham, Polegate, Seaford, St Leonards-on-Sea, Bexhill, Battle, Rye, Winchelsea, and nearby towns and villages
Whether your loft has no insulation at all or old material that’s no longer effective, our expert installers of loft insulation will assess your space and recommend the best solution. From loft board to space board loft insulation, we make your home energy-efficient quickly and affordably, one of the smartest home improvements you can make.
.