MyFloridaCode.com

[Florida Code Talk] Hardi Plank on CBS
Joe Lstiburek joe at buildingscience.com
Fri Apr 17 16:12:37 EDT 2009


Hardie has a pneumatic nail gun with masonry fasteners they have 
developed just for this application.  I had also thought it would be 
faster to do the furring with tapcon approach, but apparently the 
folks who actually do the work think otherwise.  Go figure.

>This may be a stupid question/comment, but how are they fastening it to the
>block?  Seems to me that furring it out using Tapcons or other masonry
>fastener would be quicker that having to use masonry screws or nails for
>every plank.
>
>Ken
>
>-----Original Message-----
>From: codetalk-bounces at myfloridacode.com
>[mailto:codetalk-bounces at myfloridacode.com] On Behalf Of Joe Lstiburek
>Sent: Friday, April 17, 2009 2:15 PM
>To: Johnson, Don
>Cc: codetalk at myfloridacode.com
>Subject: Re: [Florida Code Talk] Hardi Plank on CBS
>
>Don, you are correct.  No need to be humble about it.  It is my
>understanding that Hardie has done the testing and have the
>approvals.  But I have been known to be wrong - just ask my ex.   I
>have seen several projects in the Tampa area with direct applied
>Hardie.  These were multi-family done under engineering and
>architectural seal and that might have been the path to local code
>acceptance.
>
>And let me once again state for the record, I prefer to see it the
>"old fashioned way" - on furring.  I am only pointing out that Hardie
>does allow/recommend this method of attachment in their literature.
>They had a demo wall with this approach at the IBS when it was last
>held in Orlando.
>
>>LINDA AND JOE,
>>
>>9B-72 FAC,SPECIFICALLY 9B-72.010 (31) 2C. REQUIRES THAT SIDING BE TESTED
>>AND RECEIVE STATE OF FLORIDA PRODUCT APPROVAL. I WOULD REQUEST THAT IT
>>BE SPECIFICALLY INSTALLED AS PER THE CURRENT STATE OF FLORIDA PRODUCT
>>APPROVAL.
>>
>>IMHO,
>>
>>DON JOHNSON
>>SENIOR PLANS EXAMINER
>>CITY OF BOYNTON BEACH
>>
>>-----Original Message-----
>>From: codetalk-bounces at myfloridacode.com
>>[mailto:codetalk-bounces at myfloridacode.com] On Behalf Of Joe Lstiburek
>>Sent: Friday, April 17, 2009 2:39 PM
>>To: Linda Pease Cramer
>>Cc: codetalk at myfloridacode.com
>>Subject: Re: [Florida Code Talk] Hardi Plank on CBS
>>
>>Hardie can be direct applied to blocks.  This is according to
>>Hardie's own instructions.  The structural issues are pretty basic.
>>As part of this application Hardie also recommends (and this is more
>>than a good idea, but a necessity) applying a water resistive coating
>>on the blocks.  In other words, painting the block (or coating the
>>block) with a liquid closed (semi vapor open) coating.
>>
>>I prefer to install the Hardie on furring, not for structural reasons
>>- more for water control reasons.  But it is a preference, not a
>>requirement.
>>
>>
>>>Good afternoon all........Hope things are looking up for those of us
>>>in the biz........Now my question of the day... I have heard from a
>>>couple of Contractors within the past weel that are bidding on a
>>>project I am working on that they DO NOT have to fur out the block
>>>ext walls of this home in order to put the hardi plank on !!!! Since
>>>when ?? I have spec. on the plans for furring as per  hardi plank
>>>instructions and these guys are saying NOPE they dont have to do it
>>>and they can direct apply....Any thoughts Please and Thanks
>>>
>>>Diva
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