Call Us At

+353 57 910 6004

Get a Free Quote

Open Cell Spray Foam Insulation

Open Cell Spray Foam Insulation

The Breathable, Airtight Solution for Warmer, Healthier Homes

Open cell spray foam insulation is designed for residential spaces where breathability, comfort, and long-term energy savings matter most. Expanding to over 200 times its size, it fills every hidden gap, corner, and void — creating a superior airtight seal while still allowing moisture vapour to escape safely. This balance makes it ideal for attics, walls, floors, and timber frame structures. Backed by NSAI-certified materials and professional installation, our open cell spray foam helps homeowners reduce heat loss, prevent dampness, and create a healthier living environment.

Key Advantages of Spray Foam

Airtight Performance

Seals small gaps, delivering airtightness that cuts heat loss and enhances comfort.

Safe for Residential Use

Perfect for attics, frames, walls, and floors, maintaining the required air gap for roof safety.

Breathable & Moisture-Safe

Allows vapour to pass through, preventing condensation, mould, and timber decay.

Energy Efficient Savings

Reduces heating demand, and helps cut annual energy bills by up to 50%.

Professional Open Cell Foam Installation Done Right

We deliver high-quality, certified installations using NSAI-approved products from CPI Foam and Synthesia Technology. Our team is trained, insured, and experienced in working on all types of residential structures. Each project is assessed carefully to ensure proper ventilation, compliance, and the highest performance standards.

01

Attic Heat Protection

We insulate the underside of your roof to stop heat loss, increase comfort, and protect the structure from moisture.

02

Full Timber Frame Coverage

Open cell foam is ideal for timber frames, providing airtightness while allowing vapour to escape, protecting the build long-term.

03

Wall Cavity Filling

Creates a seamless insulation layer that eliminates draughts, boosts energy efficiency, and improves acoustic comfort.

04

Breathable Vent-Card System

We install a 50mm ventilation gap as required by Irish building regulations to ensure safe roof ventilation and structure protection.

05

Breathable Vent-Card System

We install a 50mm ventilation gap as required by Irish building regulations to ensure safe roof ventilation and structure protection.

06

Sound Dampening Qualities

Absorbs airborne noise and reduces sound transfer between rooms, contributing to a quieter home environment.

07

Moisture & Damp Prevention

Allows vapour to move through the insulation, reducing risks of mould, mildew, and condensation buildup.

08

Nationwide Certified Installers

Our NSAI-trained team serves Offaly, Dublin, Tipperary, Westmeath, Clare, Laois, and surrounding counties with professional, reliable installation.
Ready to Improve Comfort & Reduce Energy Costs?

Get Your Free Property Assessment & Insulation Quote

Our team will visit your property, assess your current insulation levels, identify areas of energy loss, and provide a clear, transparent quotation. No pressure. No obligation. Just expert guidance and real savings you can feel.

  • Fast, clean installation
  • 4.9★ rated customer service
  • NSAI-certified insulation products
  • Nationwide service available
Request a Free Quote

Get Your Free Consultation

FAQ

Spray Foam Insulation FAQs

Find answers to common questions about spray foam insulation.

The R-value depends on the type of spray foam used:

Open-cell spray foam: R-3.5 to R-4 per inch

Closed-cell spray foam: R-6 to R-7 per inch
Closed-cell foam offers almost double the insulation performance per inch, making it ideal for roofs, walls, and external applications.

Yes. Open-cell spray foam is especially effective for sound reduction because of its soft, flexible, and air-absorbing structure. It helps reduce airborne noise such as voices, TVs, traffic sound, and machinery.
Closed-cell foam also reduces noise but is primarily designed for thermal performance and structural strength.Closed-cell foam also reduces noise but is primarily designed for thermal performance and structural strength.

Closed-Cell Foam:

Higher R-value (R-6 to R-7 per inch)

Acts as a vapour barrier

Adds structural strength

Best for roofs, external walls, metal buildings, sheds, and commercial units

Open-Cell Foam:

Lower R-value (R-3.5 to R-4 per inch)

Excellent soundproofing

More cost-effective

Ideal for attics, interior walls, ceilings, and residential spaces

Each type is chosen based on the building requirements and conditions.

Yes. There are two primary types:

  1. Open-Cell Spray Foam

    • Soft, breathable, expands greatly

    • Best for attics, ceilings, residential interior spaces

  2. Closed-Cell Spray Foam

    • Dense, rigid, moisture-resistant

    • Suitable for roofs, walls, floors, sheds, containers, and commercial/agricultural buildings

Both types use NSAI-certified, Agrément-approved products.

No. Spray foam insulation should only be installed by trained, certified professionals.
The equipment, chemical handling, ventilation requirements, and correct application techniques are specialised and must meet Irish building regulations.
DIY installation can lead to health risks, poor performance, or damage to the property.

Have Any Other Question?

Get in Touch, We're Here to Help

We’re available to answer your questions and provide expert advice.

Say Hello