Spray Foam For Concrete Soffits
About Spray Foam For Concrete Soffits
Looking for a seamless, thermal insulation solution that can be installed quickly and efficiently?
Nexseal LE and Sucraseal are the perfect products for creating a monolithic layer of insulation to concrete soffits, especially if M&E is already installed and in the way.
Adhesion
Spray Foam forms an exceptionally strong bond with concrete
Fire-Rated
Spray Foam can offer British Class 1 & Class 0 fire resistance
Fast Install
Spray Foam is a fast and effective alternative to traditional materials
Adhesion
Spray Foam forms an exceptionally strong bond with concrete
Fire-Rated
Spray Foam can offer British Class 1 & Class 0 fire resistance
Fast Install
Spray Foam is a fast and effective alternative to traditional materials
Where To Use Spray Foam For Concrete Soffits
Depending on thermal requirements and fire regulations, either Nexseal LE closed cell or Sucraseal open cell insulation may be suitable for concrete soffits. From underground car parks and concrete underpasses to external ceiling soffits, spray foam is guaranteed to give you the peace of mind that the insulation will perform for the life of the substrate due to the spray-applied nature of the material.
External Soffits
Concrete soffit slabs are commonly used in commercial new build developments and can often be exposed to temperature differentials between inside and out. Closed cell spray foam insulation can act as a seamless insulation adhesive to protect the thermal line of the building.
Basement/Car Park Soffits
Cold basement or underground car parks often sit below habitable rooms above, therefore creating the potential for cold bridging between zones. Closed cell spray foam adheres to the slab to remove the cold thermal bridge, therefore protecting the fabric of the building.
Concrete Underpasses
Some residential and office complexes may have rooms sat above an underpass, such as a through road into a parking area. For the rooms immediately above the cold concrete slab, the thermal differentials can cause damp and mould. Closed cell spray foam is the thermal solution.
What Our Clients Say
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We’re proud to work with a range of clients across many industry sectors.
How We Help You
Enquire
Get in touch today to get the ball rolling
Specify
Let us specify the requirements for your project
Pricing
We’ll provide you with a budget price range
Install
Use one of our ThermoFoam-approved installers
Warranty
Once installed, we provide a 25-Year Product Warranty
Gallery
Check out our Gallery where you will find some photographs of installations we’ve completed in the past. Whilst spray foam is insulation and not decoration, our experienced installation teams will always endeavour to provide a neat and tidy finish to the insulation. Nexseal LE closed cell is easier to achieve a neater finish whereas Sucraseal Open Cell expands at a faster rate to leave an undulated finish.
FAQs
Yes – depending on the requirements there are several options to achieve compliance with fire regulations. Both our Nexseal Closed Cell and Sucraseal Open Cell foams achieve a British Class 1 to BS 476 Part 7, uncoated. If a class 0 spread of flame is required, we can apply an intumescent coating to the foam to improve its fire performance.
Yes, closed cell spray foam has an incredibly high tensile strength and cohesive bond to the substrate onto which it’s applied. Open cell spray foam can be subject to cohesive failure when applied to metal substrates but it’s generally fine when applied to concrete. We’d always usually recommend closed cell spray foam for large surface areas as there is a guaranteed adhesion, 25-year guarantee and lifelong performance.
In high humidity or high moisture environments, a good vapour control layer is usually recommended. Closed cell spray foam which has a cured skin on it should, however, act as a vapour barrier and should prevent any moisture from entering the thermal line. The requirement for a VCL can be assessed when conducting a static or dynamic condensation risk analysis calculation. Some paints can be classed as a vapour control layer.
Unlike pre-manufactured insulation, spray foam is manufactured in-situ and bonds to the surface as a liquid before expanding to its finished state. The strong cohesive bond of closed cell spray foam makes a seamless extension to the substrate onto which it’s applied. This leaves no potential for moisture to become trapped between an element of the building make-up, therefore, no ventilation air-gap is required.
No. Once applied, spray foam insulation will not diminish, degrade or peel away from the substrate. It’s finished state will remain constant and therefore it requires no ongoing consideration. It is important not to damage the spray foam insulation when conducting any other works within the insulation zone. We recommend you speak to us should you need to make any building alterations once the spray foam has been applied.
Any form of concrete soffit will benefit from spray foam insulation. No airgaps are needed which is a critical factor when dealing with limited headroom. The speed of installation is far quicker than using traditional, pre-manufactured materials and the strong adhesion to the surface means that no other special fixings are required.
Our Products
Check out our BBA Certified Spray Foams
Our range of open and closed cell spray foams are industry-leading, BBA-Certified, use recycled materials and contain water-based blowing agents.
Nexseal Closed Cell
