Better Screws For Hardibacker?

 
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Old 04-25-2011, 09:15 PM   #1
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Better Screws For Hardibacker?


I just finished prepping a room for tile, hardibacker to the ceiling on 3 walls.
The tile guy said use roofing nails because he didn't want screw heads sticking up. I told him I screw everything and it wouldnt be a problem. I figured my bosch impact would run em in good.
It didnt, in fact I watched the hardibacker lift off of the wall as I ran the screws in. Then the heads arent agressive enough to cut a good countersink.
Also the heads would strip out, I would run a screw in, strip it, back it out grab another. I did this for the 1st 100 screws.

So then I pre-drilled all the holes and then hit them with a titanium counter sink. Took forever, I worked 12 hrs on Easter Sunday

I looked at 3 different brand of screws, all the same chinese junk.
Does GRK or anyone make a good cement board screw?
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Old 04-25-2011, 09:24 PM   #2
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Re: Better Screws For Hardibacker?


I've never had issues with the Hardi screws you get from home cheapo. I also have CBU screw from Senco...no issues.

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Old 04-25-2011, 09:26 PM   #3
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Re: Better Screws For Hardibacker?


Never an issue with the screws from the big ol orange store.
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Old 04-25-2011, 09:28 PM   #4
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Re: Better Screws For Hardibacker?


Sounds like a collated screw gun would have paid for itself that day.
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Old 04-26-2011, 02:43 AM   #5
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Re: Better Screws For Hardibacker?


dewalt impact and a new bit. I can even sink em with the 12v dewalt impact.
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Old 04-26-2011, 05:29 AM   #6
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Re: Better Screws For Hardibacker?


IIRC (It's been a while) I've had that issue where the 1 1/4" wouldn't sink, they'd just strip the wood, so I went and grabbed the 1 5/8" screws. Problem solved.
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Old 04-26-2011, 05:54 AM   #7
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Re: Better Screws For Hardibacker?


I use ring shanked 1 3/8 nails. Or shoot them in with my duofast coil siding nailer with 1 7/8 ss ring shankers. never had a problem.


Make sure if you are installing the hardi on the floor in thinseted and nailed or screwed.
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Old 04-27-2011, 02:06 PM   #8
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Re: Better Screws For Hardibacker?


Since posting I figured something out. I realized the screws I have work great on wonderboard, never been an issue. This was my 1st time installing Hardibacker, apparently there are several brands of screws just for hardi backer (all green in clolor).
Our local supply sells hardibacker and wonderboard but not the screws for Hardibacker. I'll be talking to them about this today.....
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Old 04-27-2011, 02:23 PM   #9
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Re: Better Screws For Hardibacker?


Hardie-screws seem to work on everything. Although I've used the gray Senco collated screws and have not had trouble with them. I rarely use Hardie.
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Old 04-27-2011, 02:48 PM   #10
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Re: Better Screws For Hardibacker?


Angus, Why? I don't know what is a good backer board and what isn't so.......
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Old 04-27-2011, 04:20 PM   #11
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Re: Better Screws For Hardibacker?


It's really personal choice. I just don't like Hardie in general. Maybe for floors but not walls. I'm not impressed with the new gen Durock's flex. I use Permabase when I need CBU. That's just me.
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Old 04-27-2011, 05:21 PM   #12
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Re: Better Screws For Hardibacker?


I don't like Hardi. Its too rigid for me. Not enough give. Permabase IS the best in my opinion. That being said, I usually use Durock anyway as it is easier to handle and bonds to thinset like no ones business. I've never had a problem getting any screws to sink in it either. Also its like $2 a sheet cheaper then Permabase or UltraBacker and they just lowered the price at B-Lowe's on the 5/16" sheets to the same price as the 1/2".

I generally use cheap galvanized 1 5/8" coarse thread screws on the walls in showers. If not Ditra, I'll use 5/16ths CBU on floors bedded in cheap thinset (floor adhesive by name at B-Lowes $5 a bag) and that will get 1 1/4" screws trying not to hit the joists.

PS. - Wonderboard Sucks. I never use that crap.
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Old 04-27-2011, 05:30 PM   #13
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Re: Better Screws For Hardibacker?


I like permabase as well. Easy to cut and screw. I use 1 3/4 floor screws.
I also like the fact I can get 32x60 and 36x60
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Old 04-27-2011, 08:09 PM   #14
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Re: Better Screws For Hardibacker?


i use a drywall screw gun run it in back it out and sink it. Backing it out to me seems like it makes sure the underlayment is tight to the subfloor. screwguns fast and you can bounce the clutch.
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Old 04-27-2011, 08:34 PM   #15
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Re: Better Screws For Hardibacker?


Did you mud under the CBU?
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Old 04-27-2011, 08:38 PM   #16
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Re: Better Screws For Hardibacker?


The square head screws seem to solve the stripping problem, in my case anyway.
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Old 04-28-2011, 09:31 PM   #17
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Re: Better Screws For Hardibacker?


This sucks, we don't get any of the products you guys named.
The local store has the hardi screws at the main store and are going to carry them in the local since I talked to the manager.

Should I request they stock a better CBU? which one?

AlwaysC- No the floor is slab, this is for wall tile.

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