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Steel Wall Starters Help

 
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Old 05-02-2020, 11:23 AM   #1
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Steel Wall Starters Help


Simple question, where do the steel wall starters start when building a new brick/block wall on a extension.

DPC im guessing? What about bottom of foundation masonry?

Also where does the 'cut out vertical channel in existing wall, to maintain clear cavities' begin?

Cheers.

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Old 05-02-2020, 11:34 AM   #2
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Re: Steel Wall Starters Help


I see you are across the pond.

No idea what you are asking.

Maybe ask a mason.

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Old 05-02-2020, 04:59 PM   #3
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Re: Steel Wall Starters Help


I understood all the words individually.


Strung together into those sentences though I have no idea what they mean.
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Old 05-02-2020, 07:48 PM   #4
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Re: Steel Wall Starters Help


Quote:
Originally Posted by johnharrison96 View Post
Simple question, where do the steel wall starters start when building a new brick/block wall on a extension.

DPC im guessing? What about bottom of foundation masonry?

Also where does the 'cut out vertical channel in existing wall, to maintain clear cavities' begin?

Cheers.
The steel wall starters start at the bottom of the first coarse and go to the top..
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Old 05-02-2020, 09:45 PM   #5
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Re: Steel Wall Starters Help


Based on this and your other thread, I think you would do well with some time in the field, before you move on to estimator.

I know they don't tell you this in school, and they promise to "turn you out at the top of your field in just 3 years of education", but, as you can see, nothing can replace experience.

And I'm sorry, I read both your threads, and I haven't a clue what you are trying to say. Wish I could help.
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Old 05-02-2020, 10:32 PM   #6
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Re: Steel Wall Starters Help


"Steel Wall starters" are the steel ties that are attached to the existing masonry veneer that an addition is being attached to...

Products include patented channels with insert-able wedge anchor straps that are laid in the bed at Code required intervals, screw in wire products bent into question marks, really..

Your local/National code will tell you at what height the first and last Steel starter is required, a longer then minimum starter strip would of course be stronger with its added fasteners.

Here most commercial buildings would use a 50mm X 50mm x 6 mm angle 'iron' bolted to the existing wall with expansion bolts @ 16" Centers, wrapped with tar paper as a bond breaker in two dimensions, Grouted, but still locating the wall in the interior to exterior axis...

Your final Question involves dealing with the now interrupted rainscreen cavity that in the legacy wall allows water into a now interior wall... Again the Building code controls along with common sense, i.e. almost guaranteed call backs after next heavy rain event.

Peruse the Ancon web site using your "steel wall starters" term.
in GB as well as the USA some thing should be done to stop water traveling into the old cavity that is NOW "Indoors... the new wall of course should have some sort of cavity end-piece, possibly flashing to the roof line up the new interface of old & new wall.

Your first sentence should have said, " ...building a new brick / block wall of an extension (we'd say addition in USA) onto an existing Masonry wall?"

hopefully Stuart45 will confirm or correct my answer.
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Old 05-02-2020, 11:47 PM   #7
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Re: Steel Wall Starters Help


Yup,, that's right. It's a bolt on keyway.
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Old 05-03-2020, 05:48 AM   #8
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Re: Steel Wall Starters Help


"building a new brick / block wall of an extension (we'd say addition in USA) onto an existing Masonry wall?" that is correct.

Forgive me for my terminology, I am from the UK plus new to this world.

I have attached an image to further clarify what I am trying to say.
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steel wall starters help-new-cavity.jpg  
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Old 05-03-2020, 06:02 AM   #9
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Re: Steel Wall Starters Help


The DPC has to lap from the new into the existing by at least 4 inches. You need to cut out the bed joint or remove a brick to do this.
The wall starters have to begin just above the DPC as they can't go through it.
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Old 05-03-2020, 07:53 AM   #10
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Re: Steel Wall Starters Help


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Originally Posted by stuart45 View Post
The DPC has to lap from the new into the existing by at least 4 inches. You need to cut out the bed joint or remove a brick to do this.
The wall starters have to begin just above the DPC as they can't go through it.
thanks man, what about the cavity? where does it start
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Old 05-03-2020, 08:08 AM   #11
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Re: Steel Wall Starters Help


The existing cavity will probably have a lean concrete infill 6-9 inches below DPC, so no need to cut out below the infill. Some builders only cut out to DPC level.
Good idea clean out the old cavity will a long piece of roofing batten. Knock any mortar off the ties and rake out any loose from the bottom, at least below DPC.
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Old 05-06-2020, 02:04 AM   #12
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Re: Steel Wall Starters Help


JH66: Get out to an addition every day from start to finish, a picture is worth a thousand words.

Maybe donate on a "Habitat for Humanity" unit from start to finish: you could "donate" your estimating skill for a education on how it all comes together in real life construction.
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Old 05-06-2020, 02:44 AM   #13
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Re: Steel Wall Starters Help


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JH66: Get out to an addition every day from start to finish, a picture is worth a thousand words.

Maybe donate on a "Habitat for Humanity" unit from start to finish: you could "donate" your estimating skill for a education on how it all comes together in real life construction.
Will do man! Gonna try get on site when all this blows over

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