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249 posts

Master Geek
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Topic # 223949 25-Oct-2017 16:11
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Hi all, I have a 1970s house with Decramatic roof tiles that need rechipping. I just rang for a quote and got told I need to get the tiles tested for asbestos?. I have had a few freinds that have had similar roofs rechipped and sprayed but didn't require an asbestos check. Has anyone come across this before is it a new legal requirement?

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2676 posts

Uber Geek
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  Reply # 1889383 25-Oct-2017 16:27
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Laws around working with asbestos got tightened in 2016,  So I'm guessing they want to know there is none there before they are prepared to do the work......

 

http://www.stuff.co.nz/business/78415349/removing-that-old-stippled-ceiling-is-about-to-get-a-lot-more-expensive

 

 




249 posts

Master Geek
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  Reply # 1889386 25-Oct-2017 16:43
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Wow thank you didn't know it was external roofs as well. There are thousands of 1970 houses with these roofs on NZ. Mabey cheaper for me to get a new roof

 
 
 
 


430 posts

Ultimate Geek
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  Reply # 1889431 25-Oct-2017 17:07
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www.fibres.co.nz will test for you from anywhere in NZ. 




249 posts

Master Geek
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  Reply # 1889435 25-Oct-2017 17:27
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Thank you, how do I get a sample do I cut part of the tile?.

430 posts

Ultimate Geek
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  Reply # 1889481 25-Oct-2017 18:27
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Break a small section about size of old 50c piece from area won't cause leaking

181 posts

Master Geek
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  Reply # 1889484 25-Oct-2017 18:39
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With the Decramatic tiles the asbestos is in the glue that holds down the chip. There was a article in the ranz magazine recently about it.



249 posts

Master Geek
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  Reply # 1889486 25-Oct-2017 18:46
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Hi Rick , thank you just looking on their site, do you have to be a member to view magazines?, if it’s the glue do I still take a tile sample for testing?

181 posts

Master Geek
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  Reply # 1889487 25-Oct-2017 18:51
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Yes you have to be a member to view the articles, I’ve found the following that you should be able to view the following: https://www.masterplumbers.org.nz/assets/Uploads/AHI-Asbestos-notice.pdf



249 posts

Master Geek
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  Reply # 1889496 25-Oct-2017 19:13
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Thank you appreciate the article , have another roofer coming around this week, will see what the options are

181 posts

Master Geek
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  Reply # 1889497 25-Oct-2017 19:18
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If it is asbestos, my recommendation would be a reroof as after November next year your house will have to have a scaffold shrink wrapped tent assembled around and over it before anyone will be legally able to undertake any work on it which will cost a lot.



249 posts

Master Geek
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  Reply # 1889504 25-Oct-2017 19:46
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Thanks Rick and Quinny wish I had rechipped before the change in the health and safety changes

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Master Geek
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  Reply # 1889522 25-Oct-2017 20:37
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RickW: If it is asbestos, my recommendation would be a reroof as after November next year your house will have to have a scaffold shrink wrapped tent assembled around and over it before anyone will be legally able to undertake any work on it which will cost a lot.

 

^^^ Source?


181 posts

Master Geek
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  Reply # 1889573 25-Oct-2017 21:33
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Have a read through the following, you currently have the choice of waiting until the neighbours or people in the area arnt home or the preferred method of isolation of the area being worked on. This is changing to having to isolate the area. The amount of reroofs happening and especially in the commercial market is crazy at the moment because of this. http://www.worksafe.govt.nz/worksafe/information-guidance/guidance-by-hazard-type/asbestos/licensing/documents-and-forms/technical-bulletin-management-removal-asbestos.pdf



249 posts

Master Geek
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  Reply # 1889644 26-Oct-2017 06:49
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This is really crazy massive costs , the suburb I live in is build 1970s,80s I would say 70% of houses have these tile types . What I have read is that its fine if careful all I need to to is respray throw some chip on. Not water blast it off which will cause damage :)

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Uber Geek
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  Reply # 1889677 26-Oct-2017 08:39
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RickW: If it is asbestos, my recommendation would be a reroof as after November next year your house will have to have a scaffold shrink wrapped tent assembled around and over it before anyone will be legally able to undertake any work on it which will cost a lot.


That seems an extreme approach. I can't think of anything less friable. An asbestos sheet roof just sitting there would be releasing more fibres into the neighbourhood. When the high rise building at 61 Molesworth was being demolished and asbestos was a possibility the authorities gave the go ahead subject to a water spray that literally looked piddly. Obviously small jobs are easier to overkill.

From elsewhere "Just hang fire until worksafe decides if they are going to make a exemption to the category b asbestos rules. At the moment we have to use licensed removalists and they are rorting the prices. Once given the clearance roofers will be able to remove and dispose for about half what they are charging. Should be anytime soon. ( Note that this is for 70's decramastic and Harvey tiles)"

I think the problem with rechipping is that without thorough cleaning (that you can't do) the recoat won't stick properly.

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