High nail hole sealing performance of asphalt waterproofing layer! Highly durable roofing that contributes to the long lifespan of homes.
"Kyoku" is a high-performance asphalt roofing that can maintain waterproof performance for a long time, suitable for long-term excellent housing. It has high strength against tension and tearing, making it difficult to tear easily. Moreover, its greatest feature is the high sealing capability of the nail holes in the asphalt waterproof layer. To maintain this nail hole sealing capability over the long term, it is important to suppress the brittleness that occurs due to the aging of the asphalt and to preserve its flexibility. This product uses modified asphalt in the waterproof layer, which can maintain high flexibility over a long period, enabling excellent long-term nail hole sealing capability. 【Features】 ■ Overwhelming product strength ■ Compatible with a wide range of temperature environments ■ Stable dimensional shape unaffected by the environment ■ Long-term maintenance of high nail hole sealing capability *For more details, please refer to the PDF materials or feel free to contact us.
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【Specifications】 ■Dimensions: 18m × 1m ■Thickness: 1.2mm ■Weight: 21.5Kg *For more details, please refer to the PDF document or feel free to contact us.
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The history of asphalt is long and distant. It is said that Noah's Ark, as written in the Old Testament, was waterproofed with asphalt. In ancient Egypt, asphalt-paved roads already existed. Numerous tools and figurines made of asphalt can be found within Mesopotamian civilization. In Japan, it is stated in the Nihon Shoki that during the reign of Emperor Tenji, burnt earth (asphalt) and burnt water (oil) were presented to the court from the Niigata region. Thus, asphalt has been a valuable material used throughout a long history, but there are still many unknown aspects, holding endless possibilities. Shizureki is actively advancing scientific clarification and applied research on asphalt based on years of asphalt processing technology.
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