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External Wall Spray Foam Insulation
Seal and protect your walls with rigid, closed cell spray foam insulation.
North +447340781054 or South +353871128539
External Wall Spray Foam Insulation
Improve thermal performance, stop cold bridging, and dramatically reduce heat loss with closed cell spray foam insulation — applied externally to walls, roofs, and structural surfaces.
At Ireland Spray Foam Insulation, we use NSAI-certified closed cell foam systems for agricultural, industrial, and specialist external applications across Ireland.
Note: For full-home external wrap (rendered finish), see our sister brand Xulate
What Is External Spray Foam Used For?
Closed cell foam is ideal for exposed, uninsulated, or metal-based structures. It’s applied directly to surfaces, expanding into a rigid, water-resistant insulation layer.
Perfect for:
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🏗️ Metal and concrete walls
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🚜 Agricultural buildings, tanks, sheds
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🏢 Commercial & prefab structures
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🛻 Shipping containers or mobile units
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🧱 Hard-to-insulate walls or exposed roofing systems
Benefits of External Spray Foam Insulation
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✅ Water-resistant & airtight
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✅ Adds rigidity to walls, cladding & sheds
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✅ High R-value per inch
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✅ Fast application on-site
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✅ Protects against rust and damp
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✅ Compatible with metal, concrete, timber, and render bases
🔗 Compare foam types
🔗 Used in farm insulation & shed insulation
🔗 Used for garage insulation & container insulation -
What Foam Do We Use?
We apply closed cell HFO spray foam, certified by NSAI and compliant with Irish regulations.
It provides:
A thermal barrier
Vapour control
Resistance to wind-driven rain
Adhesion to external surfaces
Need external render?
🔗 Visit Xulate for full external wall systems
Certified & Compliant
All installations are done by our NSAI-certified team, using tested acoustic-rated open cell foam systems.
Spray foam also contributes to improved airtightness and BER ratings in residential projects.
Available Across Ireland
Our teams provide external foam insulation for walls and structures across every county.
Get a Free Quote or Site Survey
Every project starts with a no-obligation quote and expert advice.
🔗 Request a quote
📞 North: +44 7340 781054
📞 South: +353 87 112 8539
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Professional Service
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Registered Insulators
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Experienced Fitters
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Certified Products
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Quality Products
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Excellent Value
Professional Contractors
Experienced professional contractors! We are an Irish owned company that uses NSAI Approved insulation at all times.
