StressFreeTMMembranes - A New Era in Waterproofingwatch images
YSM’s patented StressFreeTMmembrane, or Stress Reducing Mechanism, addresses a key problem in the construction of commercial and residential structures. The waterproofing lifespan of a structure’s roof tends to be relatively short, compared to the other constructive elements, due to substrate movement caused by thermal and other physical stresses resulting in a widening and narrowing of cracks and joints that worsens during the life of the structure.
It is designed to provide a superior bridging solution above any cracks, joints or expansion joint.This unique solution keeps the membrane free from tear and shear stresses despite massive substrate movements while being fully adhered to the substrate.
Although the StressFree membrane is fully adhered, it employs all of the benefits of the free-floating membranes, with none of the disadvantages of these two systems. A detachment mechanism, inside membrane profile, prevents the transfer of tear and shear stresses originating in the substrate from reaching the major waterproofing element.
It is designed to provide a superior bridging solution above any cracks, joints or expansion joint.This unique solution keeps the membrane free from tear and shear stresses despite massive substrate movements while being fully adhered to the substrate.
The waterproofing membrane itself remains unharmed and free from stresses and material fatigue.
The StressFree waterproofing membrane is comprised of two integrated sub-membranes.An upper membrane (TPO or MB) is highly reinforced with improved weathering, aging and traffic resistance.This upper membrane is bonded in a limited strength to a lower, elastic membrane which itself is fully bonded to the substrate.In some configurations, the lower elastic membrane incorporates a pressure sensitive self-adhered thin layer protected with a releasing paper.In other configurations, StressFree is bonded with quick drying, pressure sensitive glue.
Other configurations incorporate a thicker, softer, foamed lower membrane, suitable for specific infrastructures such as rough surface roofs, tunnels, reservoirs, multi-level parking structures (between concrete layers) and more.
Key benefits of YSM’s StressFree membrane include:
Indisputable cost reductions achieved by:
·Annual costs associated with waterproofing maintenance are greatly reduced ·Low labor costs for installation (only one single-ply system; easy to apply) ·Uses ~ 80% less adhesive for adhering to the substrate compared to other systems ·Expansion joint sealing requires no additional installation ·Removal of old sealing is not required
Other advantages: ·Extended lifespan ·Maintains its waterproofing ability and bridges above any scale of cracks or expansion joints ·Practically unlimited bridging ability ·Expansion joint sealing requires no additional installation ·No material fatigue of the waterproofing membrane ·No tears resulting from stresses ·No dependency between failure and elongation ·No under-sheet flooding ·Easily installed ·Hot air overlapping is highly reliable (between sheets) ·Can be applied above any surface: metal, plywood, concrete, old bitumen and more ·Excellent wind up-lift resistance ·No complicated or special details for flashings ·No excessive weight (gravel) on roof required ·No need to perforate the membrane with screws ·No need to use flame or torch on site ·No flammable solvents, no high toxic hazardous solvents during installation ·Available in TPO and Bituminous versions ·Fully adhered system ·Concept and product are patented ·No flammable solvents, no high toxic hazardous solvents during installation ·Available in TPO and Bituminous versions ·Fully adhered system ·Concept and product are patented
Typical Uses: Cracked flat roofs, joints, expansion joints, basements, flat roofs and underground elements under significant constructive movements, tanking, tunnels, tubes, reservoirs, parking lots
