Advanced Building Technologies

The SRM Waterproofing Membranes Advantages:

• The mechanism prevents the membrane from being torn or frazzled by  limiting the transformation of shear and tensile stresses caused by the substrate movements. In practice, the device locates the presence of a movement caused by a widening crack. It responds automatically and immediately to any movement in its vicinity and responds actively to the appearance of a new crack in a substrate which had maintained its integrity earlier on.
  
• The new sealing membranes are totally unaffected by all types of physical failures of the substrate, mainly: cracks, giant cracks and fractures, and moving spaces between constructive elements. The sheet enables continuous sheeting above expansion joints or above any vigorous movement of the substrate whilst preventing the possibility of water penetrating and accumulating between the upper sheet and the substrate. Doing so, the sheet demonstrates the same benefits of a firmly, fully adhered/welded membrane, together with high freedom from stresses, achieved by the standard free floating membrane (mechanically attached systems, paver/stone ballasted system or concrete covered).
  
• The new sheet provides a new, better, more reliable and simple attachment against wind up-lift elevation forces,   but, with no additional weight to the roof nor the mechanical perforating of the membrane.
  
• Ensuring that in case of a flaw or tear in the membrane - no flood will occur between the membrane and the substrate.  
  
• The new system enables the manufacturer to increase  the warranty period.
  
• The new combined sheet has a shape of a membrane, for both polymeric and bituminous versions.  
  
• New standard of bridging ability: tests with different embodiments have proven tremendous bridging ability above widening new cracks that grow up to even more than 55 mm width  ! (on variable widening speeds). (lab' tests procedures were video and stills documented).
  
• No elongation properties and no additional thickness are required for the main membrane in order to achieve all of these mentioned properties.
  
• Prefab double - panels for external walls can be low-cost sealed protected from the inside, against any size of a crack by a bituminous improved membrane of no more than 1.5 mm thick. With tensile strength of even 30-40 kg per 5 cm, or by only 0.25 mm thick of polymeric (e.g., TPO / PVC) membrane.
  
• Perfectly seals any type of moving substrate upon crack, widening spaces or mechanical defect in the substrate by a fully attached, low thickness membrane.
  
• Increase in the continuous sealing reliability.
  
• A significant increase in the membrane's life-span.
  The life span of the sealing is assured even when the sheet loses its elasticity or most of it’s flexibility, as long as reasonable breaking strength (for roofing - above about 40-60 kgs per 5 cm) survives.
  
• The new mechanism demonstrates a preferable alternative to the property of elongation. There is no need for substantial elongation, the sheet must be reinforced or with quite high module of elasticity.
  
• Prevention of the risk of inundation under the sheet.
  
• Improved cost-effectiveness:

1. The concept enables reduction of main membrane thickness wherever thickness is required for improving mechanical resistance.
   
2. Saving the under sheet geotechnical protections.
   
3. For the TPO and other thermoplastic and thermoset, drastic lowering the costs of all the attachment and bonding  measures compared with the prior-art conventional membranes.
   
4. For the bituminous version - a new, beneficial improvement in cost effectiveness.
   
5. Enables an extreme low cost strait-attachment of the TPO-SRM membranes above bituminous substrate.

• Obviating the necessity for screws, weights or concrete to anchor the sheet.
  
• Simplification of the sealing application.
  
• Substantial reduction in local stresses as a result of thermal shrinkage.
  
• The new device will ensure much improved performance and resistance at extreme low temperatures.
  
• The sheeting enables sealing between two layers of concrete e.g. in concrete tunnels, parking areas or under foundations or in a wall section or in a section of any structural element, wherever cracking is anticipated in the section, to ensure continuous sealing despite shearing stresses in the cross-section caused by cracking and movements, the membrane will retain its integrity.
  
• The device is constructed of environmental-friendly materials.
  
• The device is most endurable and in the high-grade versions its qualities can be assured for a generation or longer.
  
• All the attachments /welding process and installations had been proven   and  successfully tested.
  
• All the tests relating to weatherability, aging resistance, water absorption, fireproofing, wind and heat resistance, color durability etc. are according to the usual standards.
  
• Logistical simplicity and convenience in supplying the product, its mobility and storage.

Uses:    The new sheets are designed to seal all types of substrate, especially: roofs, subterranean walls, subterranean elements, sealing of foundations, sealing of tanks and containers, cells, piping and various applications in civil engineering.

For civil engineering - many kinds of cabin, containers, pipes, aircrafts, etc. and for preventing transmission of fluid under pressure from inside - outside and vice versa as a result of any crack in the construction.