mountainlake
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New Member
Posts:4
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| 07/09/2009 12:44 AM |
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| Hi,
I am new to DIY but want to learn.
I have a couple questions about Hardie-plank.
1. How to figure out how much we need for the whole house.
2. My house is only 2 years old, the siding is just a T-1-11 I wonder is I can just put hardie-plank on top of T-1-11.
My house is by the road, getting pretty noisy some time. So I thinking maybe hardie plank will help reduce the noise too.
Any advice please feel free.
thank you.
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Dana1
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Advanced Member
Posts:702
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| 07/09/2009 11:26 AM |
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Hardie plank is in fact a bit of a moisture-reservoir like stucco or brick, and as such probably should be back-vented with a rainscreen cavity in most climate zones (installation instructions for Hardie notwithstanding). The back venting cavity need not be more than 3/4" (1x furring strips should be fine.) There have been reports of material interaction with Hardie siding with some broadsheet housewraps (I haven't seen it personally- can't vouch for it) but standard felts should be fine (they're waterproof but vapor permeable, which will allow outward drying of the T1-11.)
It might seem like a PITA, but it'll be worth it in the long run. In many (most?) installations the T1-11 is structural- stripping it isn't an option unless you then apply more sheathing.
Any mass you add to the wall will cut noise, so high mass siding like Hardie should help. How many dB depends a lot on the rest of the structural details though.
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Summers
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New Member
Posts:43
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| 07/09/2009 7:44 PM |
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Mountainlake,
Just to give yourself a factual understanding of the Hardi product and avoid any advice that comes with a caveat, you should probably take a look at this!
Legacy Report NER-405 . Published by ICC Evaluation Services. Just Google NER-405
Everything you ever wanted to know about Hardi is there. Depending on where you live, you need to pay special attention to the nailing instructions if wind speed is going to be an issue for you! Good Luck, Glenn |
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mountainlake
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New Member
Posts:4
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| 07/09/2009 7:56 PM |
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Thank you Dana1 & Summers for your advised. I will have to do my home work.
Thank again. |
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CAE1
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Posts:4
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| 07/15/2009 6:06 PM |
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To answer the question you asked, measure the length by the width by the height. So say as wall is 40' long 10' tall that is 400 sq feet. All exterior materials are measured in squares (10x10) hence 100 sq feet. You can put Hardie over the T1-11 but you will need a WRB, Tyvek, Typar and you must follow the Best Practices manual published by James Hardie, www.jameshardie.com.
Noise reduction is always "iffy" with products, you have windows, doors, and the like that contribute to the issue. I would not replace the siding to help contain noise. That would be a seperate issue.
Jerry H.
www.constructionaheadinc.com |
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Clark
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New Member
Posts:62
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| 07/19/2009 6:45 PM |
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| I recently installed 18 sq. of Hardiboard lap siding on my house. I measured the total surface area of the walls to be covered minus the window and door area and added 10%. I ended up with only 4 full length pieces of siding in the end. My supplier will take back any unused resellable planks, so it wouldn't have hurt me to over estimate a bit. I saved the few leftovers for any future repairs that might be needed. |
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thaas53
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Posts:11
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| 07/20/2009 10:42 AM |
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just curious as to the cost per square?
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CAE1
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Posts:4
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| 07/20/2009 11:42 AM |
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Labor or materials
Subcontractor price or GC price?
What area of the country?
JH |
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thaas53
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New Member
Posts:11
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| 07/21/2009 1:09 PM |
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retail, materials only, northeast. Suppose I could just go ask my local lumber yard
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CAE1
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Posts:4
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| 07/21/2009 1:18 PM |
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No more than 180.00 per sq Color Plus we buy it for around 130 here delivered, Color Plus. Siding only 6" ttw 7.25"x12'
I hope that helps.
JH |
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