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nickb800
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  #2575637 29-Sep-2020 06:27
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Handle9:

 

nickb800:

 

Regardless of cladding, I'd suggest that using a cavity system (and ideally eaves too) is a good step to make the house less prone to defective workmanship in installing the cladding. 

 

 

Isn't it pretty much impossible to build without a cavity now?

 

 

Not at all, it's determined by the 'E2 risk matrix' - if your typical 'state house' with 450mm eaves was built today, it would perfectly fine to have direct fix cladding. Eaves, parapets, height, wind zone, cladding junctions, etc all factor in to determine whether a cavity is required.

 

I think cavity+eaves is a good idea, but even direct fix claddings have come a long way since the 50s/60s - now installed with head flashings, wall wrap, etc which make it lower risk than before


alasta
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  #2575645 29-Sep-2020 08:38
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Monolithic cladding still requires a cavity system though, doesn't it?

 

I seem to recall a lot of leaky homes being affected by monolithic cladding being installed without a cavity system despite the manufacturer's instructions that it must be included. 


 
 
 
 


nickb800
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  #2575715 29-Sep-2020 10:18
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alasta:

 

Monolithic cladding still requires a cavity system though, doesn't it?

 

I seem to recall a lot of leaky homes being affected by monolithic cladding being installed without a cavity system despite the manufacturer's instructions that it must be included. 

 

 

Yes, monolithic claddings require a cavity regardless of risk matrix score


MikeAqua
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  #2575720 29-Sep-2020 10:31
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Jase2985:

 

mattwnz:

 

We still hear it. Have R6 insulation in the ceiling, IC lights, and the steel roof trays are also sitting on 21 mm ply. But can still hear rain on the roof. Not as loud as a typical roof.

 

 

i have less insulation but my ceiling is 12mm ply on noise reducing rondo clips and battens. its quiet as.

 

the roof connected the the 21mm ply wont be helping things

 

 

Ours was a 1950s house (older, heavier roof steel, with multiple layers of paint).  There were old, thin batts (presumably installed during 1970s extension) in the gaps between the ceiling framing.  We rolled the thickest wool blanket insulation we could buy over the framing and the existing batts.

 

The first time it rained after installation it was weird how quiet it was.

 

 





Mike


ermat
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  #2579046 4-Oct-2020 15:00
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Hopefully I'm on topic here, I'm also in the process of building a new home, we want brick cladding, I was hoping for clay bricks but have found a colour we like in a concrete brick. Have heard of concrete bricks cracking on occasion but I'm assuming that would be a fault in construction rather than the brick. Any views out there on concrete bricks ?

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