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The "OS-sheets Deaeration System" is a deaeration tube that ensures a continuous deaeration path from the ventilation layer. It has been developed as a deaeration tube that further enhances the benefits of OS-sheets. *Patent obtained! Patent No. 7001280 ★What are OS-sheets? "OS-sheets" are single-layer sheets that have two essential functions (breathability and waterproofing) for waterproof sheets. They are single-layer modified asphalt waterproof sheets that conform to JIS A 6013, possessing the same functions as two-layer sheets while allowing for reductions in materials, processes, and labor, as well as shortening construction periods. *For more details, please refer to the PDF materials or feel free to contact us. *The effectiveness is demonstrated when used with "OS-sheets"! For more information, please check below: 【【Addressing Labor Shortages】10-Year Warranty (extendable) Modified Asphalt Waterproof Sheet 'OS-sheets'】.

The hybrid modified asphalt sheet construction method we handle, 'OS-sheets,' has been recognized for its advancement and registered as a new technology in NETIS on November 30, 2020. The main points registered in NETIS include "shortened construction period," "no need for skilled labor required for torch bonding," and "increased construction speed." This method using our product brings revolutionary changes to the processes outlined in the public building construction standard specifications for "Roof Exposed Waterproof Insulation Construction ASI-T1" and "Roof Exposed Waterproof Insulation Construction AS-T3." [Benefits of Using NETIS Registered Technology] ■ Using new technology (NETIS) in construction → Possible to shorten construction period and reduce costs ■ Using new technology (NETIS) in public works, etc. → Points added in comprehensive evaluation method ■ Proposals for utilizing new technology from contractors → Eligible for additional points in construction performance evaluation *For more details, please refer to the PDF materials or feel free to contact us.

The modified asphalt waterproof sheet "OS-sheets" is a modified asphalt sheet using a cold self-adhesive method, which excels in adhesion to the substrate and breathability. The joints and edges of the sheet are fused using a torch burner. It is a hybrid type modified asphalt sheet that combines the advantages of the self-adhesive method and the waterproofing of the torch method, reducing the heat generation during installation to below 10% compared to conventional torch methods. It is also environmentally friendly and offers economic benefits. 【Features】 ■ Hybrid sheet combining the advantages of cold self-adhesive and torch methods ■ Excellent adhesion to the substrate and breathability ■ Reduces heat generation to about 10% ■ Environmentally friendly and labor-saving ■ Shortens construction period ■ Addresses labor shortages ■ Economic benefits 【Specifications】 Modified asphalt sheet (synthetic fiber non-woven fabric + modified asphalt) 1.0m × 8.0m, thickness 4.0mm, surface with sand granules, back with partial adhesive layer 【Other Features】 ■ The partial adhesive layer on the back allows for adhesion to the substrate, providing both breathability and waterproof performance with a single sheet. ■ The sheet joints are fused through heating with a torch burner, ensuring complete integration and waterproofing. ■ Installation is possible even over large areas using only a handheld torch burner.

The "Waterproofing Construction System" is a system that leverages the strengths of "waterproof sheets (OS-sheets)," "small burners (OS-Hand Burner)," and "coating waterproofing (O-PHALT)" to create synergistic effects. It demonstrates effectiveness through the combination of easy-to-install waterproof sheets (OS-sheets) and small burners (OS-Hand Burner), and can accommodate various shapes with the use of coating waterproofing (O-PHALT). 【Are you facing any of these issues?】 ■ Even if you can receive construction orders, there are no workers available... ■ You want to shorten the construction period to start the next project... ■ You want to fill propane gas, but obtaining gas is difficult... ■ Can you guarantee leak-proofing for 10 years? ⇒ These problems can be solved with the 'OS-sheets Waterproofing System'! Additionally, by only heating the joint areas during installation, CO2 emissions are significantly reduced. With the excellent functionality of OS-sheets, we are considering the environment and achieving improved productivity. *For more details, please refer to the PDF materials or feel free to contact us.