AIR TERMINATION NETWORK

AIR TERMINATION NETWORK

Air termination network shall consist of a network of vertical and horizontal conductors generally as shown in the Drawings. All salient points of the structure shall be incorporated in the air termination network. All metallic projections, chimneys, ducts, gutters, vent pipes, guard rails, aerial masts, etc. on or above the main surface of the roof of the structure whether shown in the Drawings or not shall be bonded to and form part of the air termination network. Air terminals or vertical finials shall be provided if specified in the Drawings and/or Bills of Quantities. Unless otherwise specified, air termination network other than the air terminals or vertical finials shall be of 25mm x 3mm annealed copper tape. The method and nature of the fixing shall be simple, solid and permanent. The air termination network shall be secured to the structure by means of naval brass purpose made fixings with base phosphor bronze screws at the intervals not exceeding 500mm. Purpose made supports for securing the air termination network onto the roof tiles and ridge tiles shall be used. Bonding clamps shall be of gun-metal and purpose made.
In the case of metal cladding roof, the air termination network shall be secured to the metal roof structures by means of non-metallic purpose made fixings and supports of UV stabilised outdoor grade polypropylene material. Intervals between fixings shall not exceed 300mm.
Air terminals or vertical finials shall be of rounded end and made of copper. Unless specified otherwise in the Drawings and/or Bills of Quantities, they shall be of 300mm in length and 16mm diameter with lock nut. The base for supporting the air terminal or vertical finial on the flat surface or ridges shall be of gunmetal and purposed made. If portions of the structure vary considerably in heights, any necessary air termination network of the lower portions shall, in addition to their own down conductors, be bonded to the down conductors of the taller portions.

38 Responses to “ AIR TERMINATION NETWORK ”

  1. mike tyson says:

    Hz0hXI Informative and precise Its hard to find informative and accurate information but here I found

  2. love anal says:

    YXmHiR Thanks again for the blog.Really looking forward to read more. Fantastic.

  3. Thank you ever so for you article post.Thanks Again. Great.

  4. venue finder says:

    I truly appreciate this post.Really looking forward to read more. Cool.

  5. venue finder says:

    I really liked your article post.Much thanks again. Keep writing.

  6. Hey, thanks for the blog.Thanks Again. Really Great.

  7. Aliyah says:

    Enjoyed every bit of your blog post.Thanks Again. Want more.

  8. Emmaline says:

    I really enjoy the article. Great.

  9. Way cool! Some extremely valid points! I appreciate you penning this article plus the rest of the site is also very good.

  10. There is noticeably a bundle to learn about this. I assume you made sure nice points in features also.

  11. Samsung_S5 says:

    Thanks-a-mundo for the blog post.Really looking forward to read more. Want more.

  12. Iphone_6 says:

    Wow, great blog.Really thank you! Keep writing.

  13. republicans says:

    Sweet blog! I found it while searching on Yahoo

  14. genetics says:

    Just wanna state that this is very helpful , Thanks for taking your time to write this.

  15. You ave made some decent points there. I checked on the net for more information about the issue and found most people will go along with your views on this web site.

  16. I really liked your article.Thanks Again. Cool.

  17. More Help says:

    If you are ready to watch comical videos online then I suggest you to visit this web page, it consists of really thus funny not only videos but also extra data.

  18. More hints says:

    It as in reality a nice and useful piece of info. I am happy that you shared this useful tidbit with us. Please keep us up to date like this. Thanks for sharing.

  19. Way cool! Some very valid points! I appreciate you penning this post and also the rest of the site is also very good.

  20. Perfectly written subject material, Really enjoyed examining.

  21. It as hard to search out knowledgeable folks on this matter, but you sound like you recognize what you are talking about! Thanks

  22. result of concerns relating to your in basic dental remedy?

  23. Informative article, totally what I needed.

  24. That is a great tip especially to those fresh to the blogosphere. Short but very precise information Thank you for sharing this one. A must read article!

  25. v6L9fz Way cool! Some extremely valid points! I appreciate you writing this write-up plus the rest of the site is extremely good.

  26. periodista says:

    Very nice post and right to the point. I am not sure if this is actually the best place to ask but do you guys have any thoughts on where to get some professional writers? Thank you

  27. check this says:

    Im grateful for the article.Much thanks again. Great.

  28. Usually I don at learn article on blogs, but I wish to say that this write-up very compelled me to take a look at and do it! Your writing taste has been surprised me. Thanks, very nice post.

  29. This is one awesome blog post.Really looking forward to read more. Much obliged.

  30. just go to says:

    Im no expert, but I imagine you just made a very good point point. You certainly understand what youre talking about, and I can actually get behind that. Thanks for being so upfront and so genuine.

  31. wonderfully neat, it seemed very useful.

  32. cyprusvillas says:

    What a lovely blog page. I will surely be back. Please maintain writing!

  33. cyprus says:

    Major thankies for the article.Really looking forward to read more. Cool.

  34. Major thankies for the blog post.Much thanks again. Keep writing.

  35. Tattoo says:

    pretty useful stuff, overall I imagine this is well worth a bookmark, thanks

  36. Thanks so much for the blog article.Much thanks again.

  37. Really informative article.Really looking forward to read more. Really Cool.

  38. Sex Videos says:

    I simply want to say I am new to blogging and actually savored your web site. More than likely I am going to bookmark your site. You surely have wonderful writings. Regards for revealing your blog.

Leave a Reply