Did you know that up to 30% of your home's heat is lost through an uninsulated or poorly insulated roof? In the damp, windy climate of Cork, standard insulation often isn't enough.
At Hallmark Roofing, we go beyond simple "roll-and-lay" services. We provide professional attic insulation upgrades that meet 2025 energy standards, significantly reducing your heating bills and improving your BER (Building Energy Rating).
Because we are roofing specialists, we understand the delicate balance between insulation and ventilation. Many general contractors pack insulation into the eaves, blocking airflow and causing black mould and timber rot.
We ensure your attic is "thermally wrapped" while maintaining the essential airflow your roof structure needs to stay healthy.
Call (021) 202 1045 for a Free Attic Insulation Survey & Quote
Real people. Real workmanship. Real results.
The Irish government has set strict targets for home energy efficiency. If your insulation was installed more than 15 years ago, it is likely under-performing, has settled (lost its "loft"), or doesn't meet the current recommended depth of 300mm (12 inches).
Our High-Performance Materials
We use only the highest-rated materials that provide maximum thermal resistance ($U-values$) while being safe and fire-resistant:
Mineral Wool (Knauf Earthwool): Our most popular choice. It is made from recycled materials, is non-combustible, and doesn't itch like traditional fibreglass.
PIR Rigid Insulation Boards: Ideal for "Warm Roof" setups or when you want to insulate the rafters themselves to create a temperature-controlled attic space.
Reflective Foil Layers: Often used in conjunction with wool to reflect radiant heat back into the living spaces.
Under the SEAI (Sustainable Energy Authority of Ireland) Individual Energy Upgrade Grant, most homeowners in Cork are eligible for a grant of €1,500 towards attic insulation.
| Property Type | Potential SEAI Grant | Typical ROI (Years) |
| Apartment / Mid-Terrace | €800 | 1 - 2 Years |
| Semi-Detached | €1,200 | 2 - 3 Years |
| Detached House | €1,500 | 2 - 4 Years |
Hallmark Roofing ensures all our work is compliant with SEAI standards, making your grant application process seamless.
Current building regulations in Ireland recommend a total thickness of 300mm for mineral wool. If you already have 100mm, we can "top up" your attic with an additional 200mm layer laid cross-ways to eliminate gaps.
Yes. High-quality mineral wool like Earthwool has excellent acoustic properties. It will significantly reduce noise from heavy rain on your slates and external traffic.
Yes, but we usually have to lift the old boards, install the insulation (and stilts if you still want storage), and then re-lay the boards. It is a slightly larger job, but the energy savings make it well worth the investment.
Most attic insulation upgrades in Cork are completed in one day. Our team works efficiently to minimize disruption to your home.
Absolutely. The modern Earthwool we use is "Euroclass A1" non-combustible and uses a bio-based binder rather than harsh chemicals like formaldehyde. It is much kinder to the environment and your indoor air quality.
Insulating your attic changes the "climate" of your roof space. A warmer house means a colder attic. To protect your home, every Hallmark installation includes:
Eaves Ventilation: We install "vent cards" to ensure air still flows from your soffits into the attic.
Tank & Pipe Lagging: Because your attic will now be colder, we wrap your water tanks and pipes in heavy-duty lagging to prevent freezing during Cork’s winter snaps.
Insulated Attic Hatch: We seal and insulate your attic door to prevent "thermal bridging" and draughts.
Expert Note: Never insulate your attic without checking your roof felt first. If we find dampness or sagging during our survey, we fix the roof issue before laying the insulation. This is the "Roofer's Advantage."
Hallmark Roofing provides trusted, affordable roofing services across Cork City and County. With over 15 years of experience, our fully trained and insured team delivers high-quality roof repairs, new roofs, flat roofing solutions, guttering, chimney work and more.
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