Redefining easy to install
Installed in minutes, not days.
Spantherm is an insulated, precast concrete unit (IPCU) flooring system designed specifically for residential and commercial ground floors. By producing high performance insulated structural concrete units off-site we have redefined the speed of installing a fully insulated ground floor. This is the next generation of structural flooring systems designed as the efficient alternative to labour intensive beam and block installations.
Spantherm is BBA & NSAI certified.
Why Choose Spantherm?
- No additional site works or laying out required
- A typical 90m² ground floor is installed in just 90 minutes
- Provides level base without camber for timber frame or block construction
- Installation is not affected by adverse weather conditions
- Secondary screeds with extended drying times are not required
- Service openings are precast for efficiency on-site
- Zero waste on site
- Zero storage of materials on site when using the supply and fit option
- On-site labour radically reduced
- "No void" option can significantly reduce extraction and spoil removal
- Fully compliant with Part L 2022 regulations
- Excellent U values with a choice of 3 performace options
- Enhanced Psi values for use in SAP calculations
- Reduced thermal bridging
- Factory made for guaranteed on-site quality detailing
- Eliminates variances in on-site labour and materials
- Potential project savings within Part L
- No hidden costs
- Zero stock loss
- Reduced site working - aids social distancing
- Reduced manual handling of beams and blocks
- Reduced exposure to wet concrete on-site
- Reduced material deliveries / vehicular movements on-site
- Secure working platform established quickly
Quality & Certification
- Manufactured in factory conditions under a quality system certified to ISO 9001
- All systems are BBA certified and CE marked
- Accepted for use on NHBC registered sites
- Factory build removes site variations of insulation detailing
- Designed to all relevant BS EN standards
"The use of Spantherm on this site has brought many advantages for us over traditional construction methods. The speed of installation was a huge benefit with 1 plot being installed in under 1 hour, this meant that we could get the follow-on trades onto site quicker. There was zero waste or storage, the labour was reduced as Creagh arrived onsite and fitted the Spantherm for us. This lead to a safer site as there was no manual handling and a secure working platform was established quickly. We have now used this system on various sites with different clients and would recommend Spantherm over the traditional beam and block – we will definitely be using it again on our new sites."Paul Begley, Managing Director, East Midlands Civil Engineering Ltd.
""Patrick Dowling, MD, Dowling Civil Engineering Ltd
"I want to express my thanks and appreciation on today's installation at our site in Bridgend. The planning, transport and installation went extremely well, and your installers were of a high standard with a no fuss can do attitude. I have absolutely no hesitation in recommending you and Spantherm and have asked our commercial team to use your services wherever possible."Andrew Collins, Contracts Manager, Hale Construction
"Having never used this system before, we were extremely impressed; not only with the product but with the timely, hassle free nature it was installed. This ultimately saved us valuable resources on alternative materials, labour and meeting our deadlines. The whole process was extremely professional and ran without a hitch, which is invaluable to us on this scheme."Richard Bracegirdle, Senior Project Manager, FBJ Construction Ltd
"We chose Spantherm because one of the things that we are looking for as a business is to improve efficiencies, reduce costs, reduce labour and time on site and when you’ve got a difficult site, where you’re struggling for storage, that’s exactly where Spantherm is perfect!"Adam Moody, Contracts Manager, NRI Civils
"Spantherm is labour saving, quick, efficient and clean. Block and beam takes so much longer to lay and still leaves a lot of work for the bricklayers to do on the floor. With Spantherm we are straight in and building off it. I will definitely use it again - the service has been great!"Malcolm Flinn, Director, Stapleford Oaks
"From a site management point of view its been really good, Creagh have been very responsive and the production timescales and installation has been quick and painless. We would definitely use Spantherm again, brilliant product, well managed and well run."Shaun Wormall, Site Manager, Geda Construction
"It was a simple decision for us. The flooring was installed quickly and without any hassle. Homeowners are demanding a fast installation of their home, and Spantherm goes a long way to achieving this. It was an obvious choice!"Graham Donnan, Managing Director of Rock Homes & Turkington
Outstanding Thermal Performance
Spantherm is a fabric first solution, integrating structural concrete with expanded polystyrene insulation. The tightly butted units lock in the thermal performance efficiently across the slab.
Part L 2022 Compliance
Spantherm is available in 3 performance options designed to boost your building’s performance within SAP.
Please refer to our table for floor performance based on actual Perimeter/ Area ratios.
Achieve U-value as low as 0.10W/m²K
Spantherm Plus based on a P/A ratio of 0.4
Reduced Cold Bridging
Spantherm is designed to reduce cold bridging at wall/ floor junctions making an important contribution to Part L performance.
The Psi values offer improvement over both the default and approved values within table K1 SAP 2012.
Typical Psi value* 0.11W/m²k
We offer 2 CPD's
"Developments in Offsite Concrete Technology" &
"Precast Concrete Flooring"
Book a lunchtime CPD at your premises (lunch is on us!)
Thermal calculations have been carried out for a range of typical perimeter / area ratios in accordance with BS EN ISO 6946 and BS EN ISO 13370.
Floor Element U Value 0.163 W/m²K
U Value of 0.13W/m²K
based on a P/A ratio of 0.4
U Value (W/m²K)
|Perimeter / Area Ratio||Spantherm Advance 90/90 = 0.038W/m²K|
Floor element U Value 0.135 W/m2K
U Value of 0.10W/m2K
based on a P/A ratio of 0.4
U Value (W/m²K)
|Perimeter / Area Ratio||Spantherm Plus 90/90 = 0.031W/m²K|
Spantherm enquiry? Contact Us.
Spantherm Load Spans
|Domestic Live Load of
|Floor Finish||Maximum Clear Span (MM)|
|100mm Concrete Screed||6150||5850||5000|
|75mm Concrete Screed||6400||6050||5100|
|50mm Concrete Screed||6650||6250||5200|
|25mm Concrete Screed||6850||6500||5300|
|10mm self levelling compound*||6400||6050||5250|
Note: based on unfactored domestic live load of 1.5kNm2 *Deflection is the limiting factor in this instance.
Spantherm requires a bearing of 100mm on masonry. Units must be supported as per the construction detail provided for each project.
Partitions can be be built off the floor, when provided for in the design. Generally 6kN/m blockwork walls run parallel to span (load shared between ribs of adjacent units). Walls to be built off the floor will be indicated on layout drawings.
Garage Floors: to comply with the distributed load of 2.5kN/m2 or concentrated load of 9.0kN required for a domestic garage, Spantherm requires a minimum 50mm screed with a compressive strength of 25N/mm2 reinforced with A142 steel mesh applied directly.
Grout is used to bond the units together (C25/30 concrete with max aggregate size 10mm).
Please contact us for commerical load span details at spanthermGB@creaghconcrete.com
Psi Value Performance - Spantherm Plus
Psi value performance varies according to the wall configuration.
|Detail Reference||Thermal Transmittance PSI Value (ψ)||Surface Temperature||Temperature Factor (F)||Temperature Factor (Pass/Fail)|
|Masonry (perpendicular)||0.109 (0.11)||17.65o||0.88||Pass|
|Masonry (parallel)||0.112 (0.11)||17.39o||0.87||Pass|
|Timber frame (perpendicular)||0.144 (0.14)||17.05o||0.85||Pass|
|Timber frame (parallel)||0.157 (0.16)||16.66o||0.83||Pass|