The mandatory requirement for the thermal efficiency of buildings, is set out in “The Building Regulations Approved Documents”- Part L for England and Wales, Part F in Northern Ireland and in Section 6 of the SBSA Technical Handbooks for Scotland. To help ensure that the requirements of these documents are met. 

Sika-Trocal’s range of insulation encompasses products suitable for use in adhered, mechanically fastened and loose laid ballasted applications that have been rigorously tested to establish thermal performance and fire performance, to ensure compliance with regulatory requirements. Also unlike some other manufacturers Sika test for wind uplift too, which is critical in adhered applications. 

Sika-Trocal can offer Sikatherm GT a foil faced insulation board for mechanically fastened systems and Sikatherm AL a mineral faced insulation board for adhered systems. Both Sikatherm GT and Sikatherm AL are a high performance rigid thermoset polyisocyanurate (PIR), manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). Sikatherm GT and Sikatherm AL are both available as flat or tapered variants.  Sika-Trocal can also provide enhanced acoustic and fire performance solutions with mineral fibre insulation and specialist sound reducing products.  

Sika-Trocal also provides technical advice for U values, condensation risk and tapered scheme design, which takes the worry out of getting the insulation solution for the project right. Furthermore the products are covered by the Sika-Trocal guarantee, which eliminates the risk of ‘split’ liability between the waterproofing manufacturer and the thermal insulation manufacturer.

Sikatherm AL

Sikatherm AL is a rigid insulation board, faced on both sides with an aluminium composite foil, autohesively bonded to the insulation core during the manfacturing process. The core of the Sikatherm AL is a high performance CFC/HCFC - free rigid urethane insulant with a typical density of 32 kg/m³.



Sikatherm AL thermal insulation for use beneath mechanically attacched S/SG waterproofing membrane

Sikatherm GT

Sikatherm GT is a rigid instulation board, faced on both sides with a wet lay coated glass fibre tissue, autohesively bonded to the insulation core during the manufacturing process. The core of Innobond is a high performance CFC /HCFC – free rigid urethane insulant with a typical density of 32 kg/m3.



Sikatherm GT thermal insulation for use beneath adhered SGK waterproofing membrane. 

Sikatherm MW DD

Sikatherm MW DD is an insulation board, faced with a mineral fibre tissue, bonded to the insulation core during the manufacturing process.
The core of Sikatherm is high performance mineral wool with a typical density of 220kg/m3 (top layer).

Sikatherm MW DD has an excellent fire performance  - Class A EN 13501-1, and is ideal for sound/noise reduction.


Sikatherm MW DD thermal insulation is for use beneath all Sika-Trocal waterproofing membranes.