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Wannabe Geek
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Topic # 191101 23-Jan-2016 14:59
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Hi, I am wanting to build a verandah over my deck. The verandah will run along one side of the house (an old Villa). What is the best way to fix the top bearer to the weatherboards? Can I use 160mm long 12g countersunk "Batten Screws" through the 45mm bearer, weatherboard, and into the studs or do I have to use coach bolts?

 

Also do I have to pack the bearer of the wall by 15mm?  There will be a flashing above the bearer which will tuck under the weatherboard above and cover the top of the polycarbonate sheeting I will use for the verandah roof covering.

 

Cheers.


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Uber Geek
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  Reply # 1477365 23-Jan-2016 15:23
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Are you sure you don't need a building consent for that work, being attached to a dwelling If so you will need to provide them with plans that show all the details like that



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Wannabe Geek
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  Reply # 1477406 23-Jan-2016 16:53
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Thanks mattwnz,

 

That's exactly right. That's why I'm asking the question. So I can draw the detail correctly.


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  Reply # 1477414 23-Jan-2016 17:21
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NZS3604 should help, and specifies the fixings needed. A public libraries should have a copy will have a copy.  The housing NZ website will have the flashing details you need in the NZ building code, think it is E2.




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Wannabe Geek
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  Reply # 1477597 23-Jan-2016 23:52
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smileThanks for that info. Will look for the Housing NZ link tomorrow. The trouble with 3604 it doesn't give options for alternative fixings often. 

 

Cheers


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Ultimate Geek
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  Reply # 1477663 24-Jan-2016 09:18
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You will need to use M12 x 200mm Coach Screws with 3mm thick square washers to fasten the rafter stringer to the house. A trimmed packer is advisable to accommodate the weatherboard profile. You will need EPDM? washers between the weatherboard and the packer (or stringer of you don't use the packer) You are penetrating the exterior wall so must not let water in anywhere. That is one of the reasons you have to go through the council process.

 

 

 

 

 

Edit: Changed Coach Bolts to M12 x 200mm Coach Screws with 3mm thick square washers


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  Reply # 1477690 24-Jan-2016 09:47
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I would be very sure you're allowed to attach to the house. I was told new decks can't attach to the house, they have to sit alongside them with a gap, otherwise in an earthquake they can act like a battering ram and destroy the wall. I could be wrong, this is just what I've been told.





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Ultimate Geek
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  Reply # 1478896 26-Jan-2016 11:33
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timmmay:

 

I would be very sure you're allowed to attach to the house. I was told new decks can't attach to the house, they have to sit alongside them with a gap, otherwise in an earthquake they can act like a battering ram and destroy the wall. I could be wrong, this is just what I've been told.

 

 

From the description the request is about a roof over the deck, not the deck itself.  Sounds like the deck is existing.





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  Reply # 1478905 26-Jan-2016 11:45
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If you're close to the sea you may be required to use 316 stainless steel fasteners rather than galvanised.


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Ultimate Geek
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  Reply # 1478917 26-Jan-2016 12:02
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If it involves water-proofing, roofing or flashings then it's Restricted Building Work, and the council won't accept a consent application unless it has been designed by a Licenced Building Practitioner, and will also be supervised by one.





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  Reply # 1479045 26-Jan-2016 14:12
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Isn't there an owner builder exemption?


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  Reply # 1479085 26-Jan-2016 15:01
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mclean:

If it involves water-proofing, roofing or flashings then it's Restricted Building Work, and the council won't accept a consent application unless it has been designed by a Licenced Building Practitioner, and will also be supervised by one.



Isn't a Building Consent exemption for porches and verandahs under 20m2 that can't take effect because there will be a roof by definition an Alice in Wonderland Mad Queen sort of thing?

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  Reply # 1479163 26-Jan-2016 16:50
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froob:

 

Isn't there an owner builder exemption?

 

That does exist, but you are still required to meet all the current building code regulations. This means submitting for consent if required. You just choose a tick box to state that you are an owner builder rather than being a licensed practitioner. 


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  Reply # 1479193 26-Jan-2016 17:27
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Even if something looks like it may be exempt, it may not be, especially if it involves  interfering with existing cladding on a building. Check with council, and get it in writing that it doesn't need consent. If not it will come back to bite you when selling, and potentially can cost many thousands. I am speaking from first hand experience.


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  Reply # 1479249 26-Jan-2016 18:22
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Disrespective:

 

froob:

 

Isn't there an owner builder exemption?

 

That does exist, but you are still required to meet all the current building code regulations. This means submitting for consent if required. You just choose a tick box to state that you are an owner builder rather than being a licensed practitioner. 

 

 

Just to clarify, I was responding to mclean's comment immediately above mine, that was suggesting the work must be designed and supervised by a licensed building practitioner.

 

It looks like OP is of the view that the work will require a building consent and is intending to apply for one. 

 

For anyone else looking for details of building work that does not require a building consent, it can be found here. It is also a good idea to check resource consent requirements as well.

 

 

 

 

 

 


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