Hardie Siding stored outside uncovered - Still good?

[HawkinsHollow]

I have the opportunity to buy some hardie siding to use on my garage. This siding have been stored outside off the ground but UNCOVERED for the last 2.5 years. I can get this stuff for pennies on the dollar. Would it be worth the risk? It looks fine, doesn't look swollen, deteriorated or moldy. I plan on getting it covered and stored in a nice sunny and windy place to dry out. What do y'all think?

 

[herm0016]

should be just fine. i would do it. let it dry out before painting. make sure you are installing with an air gap behind it. usually 1x2 or 4 every 16 on the wall over whatever your weather barrier is, like tyvec and fasten to those to get you a 3/4 air gap behind the siding. look up the install guide.

 

[rademamj1]

I have the opportunity to buy some hardie siding to use on my garage. This siding have been stored outside off the ground but UNCOVERED for the last 2.5 years. I can get this stuff for pennies on the dollar. Would it be worth the risk? It looks fine, doesn't look swollen, deteriorated or moldy. I plan on getting it covered and stored in a nice sunny and windy place to dry out. What do y'all think?

If your buying it, I think you will be just fine. However, if you will be storing it, please don't cover it with a tarp. The tarp will just encourage moisture, and the very mold and mildew your concerned about will appear. Keep it open and exposed to fresh air and the wind for maximum drying. Remember Hardie siding is designed to withstand even tropical rainy weather.

 

[Tinhack]

Isn't that made out of concrete? Should be ok but mold and mildew between the sheets would be my concern. Should be able to wash it.

 

[jaxs]

I have the opportunity to buy some hardie siding to use on my garage. This siding have been stored outside off the ground but UNCOVERED for the last 2.5 years. I can get this stuff for pennies on the dollar. Would it be worth the risk? It looks fine, doesn't look swollen, deteriorated or moldy. I plan on getting it covered and stored in a nice sunny and windy place to dry out. What do y'all think?

If you tell me where it's at I'll look at it and let you know.

 

[3Ts]

You might have some staining between the boards, but it'll still be good.

 

[mmancuso13]

It is cement, you are fine! I bought a pile from my neighbor and stored it outside for 5 years uncovered. Picked it up, let it dry and used it! No problems

As mentioned, just make sure it is completely dry before you try to paint it...

 

[user.69169]

Actually, sand, cement & ground up paper.

 

[PILOON]

I used some that had lived outdoors, was even mossey and slimey.
I pressure washed, let it dry and then stained to match.
No problems.

 

[fried1765]

I used some that had lived outdoors, was even mossey and slimey.
I pressure washed, let it dry and then stained to match.
No problems.

Yup.... the OP should pressure wash it if necessary, but definitely spray it with a mixture of water and bleach.

 

[user.69169]

Bleach my ashcan. Bleach fer laundry.
You got mold you use soda, either baking or laundry. Murder green crud and leaves salt behind dat kills possible regrowth. Why you think insurance company loves sodablasting house dat got wet from firehoses?

 

[fried1765]

Bleach my ashcan. Bleach fer laundry.
You got mold you use soda, either baking or laundry. Murder green crud and leaves salt behind dat kills possible regrowth. Why you think insurance company loves sodablasting house dat got wet from firehoses?

Bleach kills mold everywhere!

 

[user.69169]

Only temporary. Mold usually well established colony by time bleach arrives. Bleach only kill what it reaches before evaporating.

Like I said, soda kills as well or better, then leaves behind salt dat kills emerging molds.

 

[Frankenkubota]

should be just fine. i would do it. let it dry out before painting. make sure you are installing with an air gap behind it. usually 1x2 or 4 every 16 on the wall over whatever your weather barrier is, like tyvec and fasten to those to get you a 3/4 air gap behind the siding. look up the install guide.

My prepainted Hardi plank is on the way. I have installed siding as a grunt helper many times and never used firring strips to provide airspace. I'm sure there are utubes etc, I just couldn't find them.

The Hardi Co. web site says hardi plank can be installed directly to 7/16 osb, which is exactly what i got. I also have 6 ft soffits so it's never going to get wet.....probably.

I'm not saying you are wrong, more than 1 way to skin a cat but........If the planks stand off a little, I think I would have problems with the dimensions on the exterior window edge reveal and the brick mold on the doors.....those are all designed for planks to be attached directly to osb.

Funny, I have a bunch of roofing left over, standing seam, very expensive. I've got it on skids but it's 35 each, 25 ft pieces! Now I gotta build another building just to use it up!

My buddy said, man, you gotta get this outta the constant rain. I reminded him it was roofing.

 

[Frankenkubota]

Bleach my ashcan. Bleach fer laundry.
You got mold you use soda, either baking or laundry. Murder green crud and leaves salt behind dat kills possible regrowth. Why you think insurance company loves sodablasting house dat got wet from firehoses?

In my area many roofs with shingles have streaks running down from peak to gutter. I learned it's from bacteria or some other living critter? I don't like it and I'm told it damages your roofing?

I went to a swimming pool co and bought what they call shock? I think it's basically a bleach solution? It worked but took a few applications and in the end, not perfect but much better.

I wonder if baking soda would work better?

Rhetorical question for me really, I now have a metal roof.

 

[fried1765]

In my area many roofs with shingles have streaks running down from peak to gutter. I learned it's from bacteria or some other living critter? I don't like it and I'm told it damages your roofing?

I went to a swimming pool co and bought what they call shock? I think it's basically a bleach solution? It worked but took a few applications and in the end, not perfect but much better.

I wonder if baking soda would work better?

Rhetorical question for me really, I now have a metal roof.

Depends on your roofing material, but garden lime works on red cedar roofing ,.... which I have.

 

[HawkinsHollow]

My prepainted Hardi plank is on the way. I have installed siding as a grunt helper many times and never used firring strips to provide airspace. I'm sure there are utubes etc, I just couldn't find them.

The Hardi Co. web site says hardi plank can be installed directly to 7/16 osb, which is exactly what i got. I also have 6 ft soffits so it's never going to get wet.....probably.

I'm not saying you are wrong, more than 1 way to skin a cat but........If the planks stand off a little, I think I would have problems with the dimensions on the exterior window edge reveal and the brick mold on the doors.....those are all designed for planks to be attached directly to osb.

Funny, I have a bunch of roofing left over, standing seam, very expensive. I've got it on skids but it's 35 each, 25 ft pieces! Now I gotta build another building just to use it up!

My buddy said, man, you gotta get this outta the constant rain. I reminded him it was roofing.

Yeah, I hear you about the furring strips. All the Hardie I have installed it was directly to osb and this has a $500,000 on the edge of a mountain that gets lots of driving rain. Maybe I will just forgo the furring strips, sounds way more of a pain.

Thanks for all the comments, sounds like I should call my neighbor and buy that hardie.

 

[buck12]

Yeah, I hear you about the furring strips. All the Hardie I have installed it was directly to osb and this has a $500,000 on the edge of a mountain that gets lots of driving rain. Maybe I will just forgo the furring strips, sounds way more of a pain.

Thanks for all the comments, sounds like I should call my neighbor and buy that hardie.

I build my shop 13 years ago with Hardie siding installed directly over the house wrap to OSB.
No problems to date. Did the same when we built our cabin last year.

 

[dieselscout80]

I have a question about a use for Hardie / cement siding boards.

Would it work to use as sides for a raised beds for a garden?

 

[4570Man]

I have a question about a use for Hardie / cement siding boards.

Would it work to use as sides for a raised beds for a garden?

Maybe but you’d have to stake it a lot. It didn’t have much structure.