To avoid these ads, REGISTER NOW!

Does mineral wool insulation need to be covered?

Hobby_Man22

Well-known member
Joined
Nov 16, 2020
Messages
3,581
Location
tx
I'm installing this in my red iron steel building. Was planning on just leaving it exposed, but after noticing my eyes and throat feeling weird when installing it I wonder if I should put some kind of plastic blanket over it? Or will it be fine left exposed just as long as I'm not touching it?
 
To avoid these ads, REGISTER NOW!
OP
H

Hobby_Man22

Well-known member
Joined
Nov 16, 2020
Messages
3,581
Location
tx
It's hard to put any kind of covering over it since the building has already been built.
 

matt_i

Well-known member
Joined
Mar 14, 2008
Messages
10,728
Location
SE Michigan
Its a tiny bit dusty especially when you are cutting and fitting it up close and personal with your hands.

A mile better than the itch from fiberglass.

My rock wool is covered up now but I would think it to be a temporary situation related to the install.

Give it a couple of weeks, if this is incorrect advice then nothing was really lost.

The bare plastic by itself sounds problematic to me, in the right conditions you could get a flash fire.
 

mepstein

Well-known member
Joined
Sep 17, 2010
Messages
1,284
The dust is a lung irritant. I hope you wore a respirator when installing. I will be covering mine with cheap house wrap. The micro permeable type. Unlike plastic, it will let water vapor escape but keep the dust in. It will also add more air sealing to the structure.
 
OP
H

Hobby_Man22

Well-known member
Joined
Nov 16, 2020
Messages
3,581
Location
tx
Also if you cover it with plastic then you're affecting the sound absorption too.
 
To avoid these ads, REGISTER NOW!

ace10

Well-known member
Joined
Dec 17, 2017
Messages
1,490
Location
Rural NoVA
On a vertical wall, it will collect a layer of dirt and dust very quickly if not covered.

I use the stuff everywhere, but it's always behind plastic or drywall.
 

vpd66

Well-known member
Joined
Mar 1, 2010
Messages
709
Location
Central Wisconsin
I would say defiantly cover it. That stuff is nasty to deal with. Image everytime you brush up against the wall you make contact with it and release some fibers in the air? The correct thing to do would be to put sheet metal liner panels over it. Thats a big job both cost and labor but really increases the valve of your building. Or you could cover it with OSB and paint it white with Kilnz or Zinser.
 
OP
H

Hobby_Man22

Well-known member
Joined
Nov 16, 2020
Messages
3,581
Location
tx
This stuff may itch less than fiberglass since I grabbed it with my bare arms and barely noticed any itching, but as far as breathing it and getting it in your eyes, that stuff is way worse. I've cut holes in boats before and never had any breathing issues or felt like I had sand in my eyes. I felt like I had sand in my eyes just loading it on the trailer, didn't even open the plastic. Well one was ripped open, maybe that was it. Im okay now though. I didn't put up many. Just 4 bats to see how it would fit and to figure out a good method to hold it in place. I ordered some 1" duct strapping to hold atleast the ceiling part in place. I'm going to run the strips across the rafters every 12" or so.
 

Glemon

Well-known member
Joined
Aug 29, 2020
Messages
2,165
Location
NE
You want to buy the faced stuff with a paper side if you want to put it up and not put anything over it, I did this on my ceiling in the shop. Wouldn't do it on the walls as you will poke a lot of holes in it unless it is an area you never do anything in.
 

checkthisout

Well-known member
Joined
Sep 5, 2008
Messages
5,232
This stuff may itch less than fiberglass since I grabbed it with my bare arms and barely noticed any itching, but as far as breathing it and getting it in your eyes, that stuff is way worse. I've cut holes in boats before and never had any breathing issues or felt like I had sand in my eyes. I felt like I had sand in my eyes just loading it on the trailer, didn't even open the plastic. Well one was ripped open, maybe that was it. Im okay now though. I didn't put up many. Just 4 bats to see how it would fit and to figure out a good method to hold it in place. I ordered some 1" duct strapping to hold atleast the ceiling part in place. I'm going to run the strips across the rafters every 12" or so.

What was your prior screen name on here?
 
To avoid these ads, REGISTER NOW!
Top Bottom