About

Introducing Thermaseal Spray-On Foam

THERMASEAL LTD. was the first company to start production of this system in Malta in 1991. This sytem was developed in Germany by the world renowned Bayer and satisfies all the rigorous German requirements for building purposes – including energy conservation and constructional physics.

The vital contribution made by the roof to the functional performance and heat balance of a building has necessitated the development of new and efficient techniques, and materials for roof insulation and sealing.  As a result, there had to be a considerable improvement in the quality of the entire roof structure and of the materials used to prevent damage to flat roofs.  This, coupled with the tighter legal requirements in Europe – especially those regarding heat insulation and energy conservation – demanded new and economical methods of carrying out insulation and sealing work.  In this regard, the following criteria had to be met:

• the roof insulating material had to be free of thermal bridges
• technically perfect solutions had to be found to numerous awkward flashing problems
• the roof had to be simultaneously sealed
• the method had to be economical
• business can go on uninterrupted whilst renovation takes place as the foam is applied from the outside.

THERMASEAL spray-on foam for roofs is an on-site polyurethane foaming system which satisfies all the above requirements, and is approved for building purposes in Germany by the Institute of Building Technology in Berlin.

THERMASEAL’s basic raw materials are polyisocyanate and  polyol, and the addition of blowing agents and auxiliaries initiates a chemical reaction which results in a rigid polyurethane foam .

The most important feature of insulating materials based on rigid polyurethane foam is their low thermal conductivity, which is matched by no other insulating material.  These properties remain unchanged for years, even under extreme conditions.

THERMASEAL spray-on foam offers a better alternative to the laying of insulating materials in a laborious sequence of operations.  It represents an in-situ insulation system which can be applied to practically any type of roof, and which satisfies all economic criteria.

The spray-on foam is suitable for any shape of roof and any substrate.  The foam can be applied over irregular, curved surfaces, horizontally and vertically.  It will follow the contours and profiles of the substrates and therefore fulfils the demands of many architects and builders in creating modern designs that could be waterproofed and insulated in one operation.  When applied in several layers on the substrate, the foam has excellent mechanical properties which enable it to withstand foot traffic.

The insulation is completed by the weather-resistant UV-Protective Paint which has excellent adhesion and is easy to apply.

All the above properties have contributed to THERMASEAL’S success in becoming a market leader.  It is suitable for all types of roof structures, including the typical Maltese non-ventilated / ventilated flat roofs.  It is usually sprayed over the concrete structure and then covered with the traditional screed  concrete layer.

Waterproofing and Insulation

The increase in energy costs, mainly due to the alarming decrease in oil reserves has led industrialised countries not only to look for alternative sources of energy but also to investigate ways of making more efficient use of the energy which is consumed – particularly thermal energy.

It is for this major reason that architects and planners are searching more intensively than ever before for an insulating material which:

• provides a solution to all types of insulation problems
• is structurally sound
• is easy to produce, process and install, and
• is economical in the long term

 Application