KEE-Stone Legacy NF Flashing is a sustainably designed non-fleece backed thermoplastic membrane designed for use as the cap sheet in a multi-ply hybrid system incorporating Garland approved modified base sheets. KEE-Stone Legacy NF Flashing is reinforced with a high-performance polymer-coated, high tensile-strength polyester scrim—engineered using recycled plastic bottles—positioned beneath its bright white surface. This sustainable composition preserves the membrane’s long-term flexibility while providing exceptional tensile strength and superior resistance to punctures and tears.
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| Method | Description |
|---|---|
| Heat-Welded | Immediately set the flashing membrane in place on the wall. Roll the surface with a weighted roller to ensure proper mating on the two surfaces. Once the KEE-Stone Legacy NF Flashing is adhered, heat- weld seams to seal the membranes together. |
| Physical Property | Value |
|---|---|
| Tensile Strength | MD 589 lbf/in (2565 N) |
| Tear Strength | MD 97 lbf (431 N) XD 144 lbf (641 N) |
| Elongation | MD 40% XD 40% |
| Low-Temp Flex | -40°F (Pass) (-40°C) |
| Eco-Fact | Value |
|---|---|
| Solar Reflectance | Initial: 0.87 Aged: 0.75 |
| Solar Emittance | Initial: 0.88 Aged: 0.88 |
| SRI | Initial: 110 Aged: 93 |
| Type | Link |
|---|---|
| Data Sheets | KEE-Stone Legacy Data Sheet |
KEE-Stone Legacy is an advanced roofing membrane formulation that strategically integrates biobased ELVALOYTM and utilizes cutting-edge mass balance technology (MBT). This innovative approach is designed to significantly enhance the sustainability profile of the product by increasing the incorporation of renewable resources. Crucially, while prioritizing environmental responsibility through the use of biobased content, KEE-Stone Legacy rigorously maintains the high standards of product quality, exceptional durability, and proven performance that the KEE-Stone line is known for, ensuring no compromise on the long-term integrity of the roofing system.
KEE-Stone Legacy is a highly sustainable and environmentally conscious roofing membrane solution, distinguished by its composition which incorporates a significant proportion of recycled materials. Specifically, KEE-Stone Legacy boasts an impressive 20% recycled content, a commitment to sustainability that extends to both the core membrane material and the internal reinforcement layer. This intentional inclusion of recycled components plays a vital role in actively reusing materials and diverting substantial waste away from already burdened landfills.
KEE-Stone Legacy contains 20% recycled content in both the membrane and the reinforcement, helping to reuse and divert materials from landfills. The compound below the scrim has a non-phthalate liquid plasticized compound for improved flexibility and enhanced environmental performance.