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  6. Ventilation Pathway Securing Material "Open Board"

Ventilation Pathway Securing Material "Open Board"

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last updated:Aug 26, 2025

日本住環境
日本住環境
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Solving the problem of securing ventilation pathways in the ridge beam. With simple construction, the space that was blocked by the roof sheathing is effectively opened up.

The "Open Board" is a product that allows for easy establishment of ventilation pathways at ridge caps when combined with ventilation components such as ridge vents, roof spacers, and eaves vents. It was developed in response to demands like "I don't want the ventilation layer at the ridge cap to just be an air layer!" and "I want to ensure ventilation pathways while maintaining a typical installation!" No special precuts or complex construction are required, and it effectively opens up closed spaces that were blocked by the roof sheathing. 【Features】 - Ensures ventilation pathways and simplifies troublesome construction - Compatible with 2x4 ridge openings - Supports roof sheathing thickness of 12mm *For more details, please refer to the materials. Feel free to contact us with any inquiries.

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イプロス-オープンボード.jpg

Ventilation Pathway Securing Material "Open Board"

イプロス-オープンボード.jpg
イプロス-オープンボード.jpg
  • Related Link - https://www.njkk.co.jp/product/tabid75.html?pdid=k…
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【Specifications】 Material: Polypropylene Standard dimensions: (Thickness) 12.8mm × (Width) 50mm × (Length) 1250mm Color: Black Effective opening area: 107cm² per piece Quantity: 10 pieces per case *For more details, please refer to the documentation. Feel free to contact us with any inquiries.

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Ventilation Pathway Securing Material "Open Board"

Ventilation Pathway Securing Material "Open Board"

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Corner and flat combined ridge ventilation "W-Vents"

Corner and flat combined ridge ventilation "W-Vents"

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Corner and flat-compatible ridge ventilation component "W-Bentz"

Announcement of the new release of the corner and flat-compatible ridge ventilation component "W Vent."

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The new product "SEV-15FD" will be released on Thursday, June 1! This product is a ventilation component suitable for both flat and hip roofs, with no water leakage even at wind speeds of 40 m/s. It is a versatile ridge ventilation system that can be used not only with flat roofs but also in conjunction with open boards (sold separately) for ventilation at hip roofs. <Product Highlights> ■ Suitable for hip roofs, making it ideal for apartments with partitioned gable roofs ■ Waterproof for peace of mind in strong wind areas ■ Durable with rot-resistant plastic battens ■ Fully guards against insects and animals For more details, please refer to the product page below.

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日本住環境

日本住環境

Building materials, supplies and fixtures manufacturers

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The products and services developed by our company over a quarter of a century are not visible to the people living in them. We believe that our mission at Japan Living Environment Co., Ltd. is to create a comfortable living environment for the main character of the home, "people," from behind the scenes where it is not visible.

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