Cold applied roofing membranes


Sika Liquid Plastics liquid applied membranes are high performance polyurethane membranes which become rapidly resistant to rain damage, and can be used on both flat and pitched roofs.

Our liquid applied membranes are cold applied, eliminating the risk of fire in an occupied building during installation and cure to form a seamless waterproof membrane. The advantage of a seamless system when compared to traditional sheet membranes such as felt is that it eliminates the possibility of joint failure through poor workmanship. The system offers outstanding stability and longevity, and can be guaranteed for up to 25 years.

waterproofing flat roofing


Sika Liquid Plastics manufactures a range of quality, seamless, cold applied, liquid systems and coatings for the waterproofing of flat roofs. Sika Liquid Plastics have been manufacturing high performance protection and waterproofing systems for over 50 years. Our roof waterproofing membranes provide long lasting, elastomeric weatherproof protection as well as many advantage over alternative systems.

Our proven track record for developing innovative techniques and problem-solving systems has resulted in an extensive portfolio of products that you can trust, including Decothane our key, flagship product, and Decothane Ultra, our new low odour system designed for sensitive sites such as schools, hospitals and manufacturing plants.

project monitoring


From pre-start to project completion and beyond, our Applications Team is on hand to ensure your project runs smoothly.We consider every member of our team to be a roofing expert and their aim is to offer complete support throughout the works including;

  • Attendance at pre-start meetings
  • Regular comprehensive documented inspection visits
  • A final inspection of the work to ensure that the highest level of workmanship has been reached before a guarantee is issued


Our Applications Team consists of a group of highly skilled roofing experts who all have experience of working 'on the tools'. This unique hands-on experience means they know the best way to overcome most problems faced by contractors on site.