Attic insulation is one of the best ways to make your home warmer and reduce heating bills in Ireland. In 2026, many Irish homeowners are improving their attic insulation because energy costs are still high and homes need better energy efficiency.
If you are planning to insulate your attic, one of the first questions you may ask is: how much does attic insulation cost per roll in Ireland?
The answer depends on the type of insulation, the thickness, the brand, and the size of the roll. In this guide, we will explain attic insulation roll prices in Ireland for 2026 in simple English.
What Is Attic Insulation Roll?
Attic insulation rolls are large rolls of insulating material placed between and over attic joists. They help stop heat from escaping through the roof.
The most common insulation rolls in Ireland are:
- Glass wool insulation
- Mineral wool insulation
- Rockwool insulation
- Earthwool insulation
These rolls are popular because they are affordable, easy to install, and work well in Irish weather conditions.
Average Attic Insulation Cost Per Roll in Ireland 2026
In 2026, attic insulation rolls in Ireland usually cost between €40 and €80 per roll depending on thickness and brand.
Here are some average prices:
| Insulation Type | Thickness | Average Price Per Roll |
|---|---|---|
| Glass Wool Roll | 100mm | €45 – €55 |
| Glass Wool Roll | 150mm | €48 – €60 |
| Earthwool Roll | 200mm | €45 – €70 |
| Rockwool Roll | 100mm | €50 – €75 |
| Premium Mineral Wool | 200mm | €65 – €90 |
Many suppliers in Ireland also offer discounts when buying multiple rolls.
Popular Attic Insulation Roll Prices in Ireland
Some real examples from Irish suppliers in 2026 include:
- 100mm Knauf Earthwool Roll (11.09m² coverage) costs around €44.99.
- 200mm Knauf Attic Insulation Roll (5.50m² coverage) costs around €44.99.
- 150mm Isover Insulation Roll costs around €47.90 including VAT.
- Isover Spacesaver G3 100mm Roll costs around €65.50 from some builders’ merchants.
Prices may change depending on delivery costs, stock availability, and your location in Ireland.
How Many Rolls Do You Need?
The number of rolls needed depends on your attic size and the insulation thickness required.
A typical Irish semi-detached house attic is around 40–50 square metres.
Usually:
- 4 to 8 rolls may be needed for smaller attics
- 8 to 12 rolls may be needed for medium-sized homes
- Larger detached homes may require 12 to 20 rolls
Many homes in Ireland now aim for 300mm total attic insulation to meet energy efficiency standards.
Cost of DIY Attic Insulation in Ireland
DIY attic insulation is becoming more popular because it saves money on labour costs.
Material-only costs for a standard semi-detached home are usually between €200 and €800 depending on insulation quality and attic size.
DIY installation works best if:
- Your attic is easy to access
- The attic is dry and clean
- You are comfortable working safely in roof spaces
However, safety equipment such as gloves, masks, protective clothing, and attic boards may also be needed.
Professional Installation Costs
Professional attic insulation installation in Ireland usually costs between €1,500 and €2,500 before grants.
This price often includes:
- Insulation materials
- Labour
- Disposal of old insulation
- Attic ventilation checks
- Pipe and tank insulation
Professional installers can also ensure the attic meets SEAI standards.
SEAI Grants for Attic Insulation
The Sustainable Energy Authority of Ireland offers grants for attic insulation upgrades.
In 2026, homeowners may receive grants that significantly reduce the final cost of attic insulation work. According to recent Irish insulation cost guides, attic insulation grants can reduce homeowner costs to a few hundred euro in some cases.
The grant amount depends on:
- Property type
- Age of the home
- Existing insulation level
- Contractor registration
Using an SEAI-registered contractor is usually required for grant approval.
Best Types of Attic Insulation Rolls
Glass Wool Insulation
Glass wool is the most common and affordable attic insulation in Ireland.
Benefits include:
- Low cost
- Easy installation
- Good thermal performance
- Widely available
It is ideal for most standard Irish homes.
Rockwool Insulation
Rockwool is denser and offers better soundproofing and fire resistance.
Benefits include:
- Excellent fire protection
- Better sound insulation
- Durable material
- Moisture resistant
However, it usually costs more than glass wool.
Earthwool Insulation
Earthwool products are popular because they are softer, easier to handle, and made with recycled materials.
Many homeowners choose Earthwool for DIY projects.
Is Rolled Insulation Better Than Blown Insulation?
Both rolled insulation and blown insulation are common in Ireland.
Rolled insulation is usually:
- Easier to maintain
- Cleaner to work with
- Better for future attic access
Blown insulation can work better in awkward or tight attic spaces. Irish homeowners discussing insulation online often prefer rolls for easier maintenance and long-term access.
Tips Before Buying Attic Insulation Rolls
Before purchasing insulation rolls, remember these tips:
- Measure your attic carefully
- Check the insulation coverage per roll
- Compare thickness levels
- Choose trusted brands
- Wear protective clothing during installation
- Ensure proper attic ventilation
Also, avoid compressing insulation rolls because this reduces their performance.
Are Attic Insulation Rolls Worth It?
Yes, attic insulation rolls are one of the best home upgrades in Ireland.
Benefits include:
- Lower heating bills
- Warmer home during winter
- Better BER rating
- Reduced heat loss
- Improved comfort
- Higher property value
Many Irish homeowners save hundreds of euro per year after upgrading attic insulation.
Conclusion
In 2026, attic insulation roll prices in Ireland generally range from €40 to €80 per roll depending on the type and thickness. DIY installation can help reduce costs, while professional installation offers convenience and grant support.
For most Irish homes, mineral wool or glass wool insulation rolls remain the most affordable and practical option. With rising energy prices, attic insulation continues to be a smart investment for homeowners across Ireland.
Whether you choose DIY installation or hire professionals, proper attic insulation can make your home warmer, more energy efficient, and cheaper to heat for many years.
FAQS
1. How much does attic insulation cost per roll in Ireland in 2026?
The average cost of attic insulation rolls in Ireland in 2026 is between €20 and €70 per roll, depending on the thickness, material, and brand. Fibreglass rolls are usually cheaper, while sheep wool and eco-friendly insulation cost more.
2. How many insulation rolls do I need for an attic?
The number of rolls depends on the size of your attic and the thickness required. A standard semi-detached home in Ireland may need around 10 to 20 rolls for proper insulation coverage.
3. Can I install attic insulation myself?
Yes, many homeowners in Ireland install attic insulation themselves, especially roll insulation. However, hiring a professional ensures proper fitting, ventilation, and maximum energy efficiency.
4. Are there grants available for attic insulation in Ireland?
Yes, the Irish government offers home energy upgrade grants through the Sustainable Energy Authority of Ireland for eligible homeowners. These grants can help reduce the overall cost of attic insulation.
5. How much money can attic insulation save on energy bills?
Good attic insulation can reduce heat loss by up to 25% and may save Irish homeowners hundreds of euros every year on heating costs, especially during cold winters.