Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Brick sluffing

Brick sluffing

Brick sluffing

I am a structural engineer that works for a firm that specializes in restoration and preservation of historical and non-historical structures.

Many of you have probably experienced older brick that was typically not kiln dried to today's standards (probably in your own homes); therefore, the brick is more likely to suffer from sluffing.  For those that don't know what I mean, sluffing is when the outer layer of the brick deteriorates due to moisture changes on the surface of the brick.  One indication of sluffing is the piles of dust that collect when it falls off of the brick.

We are constantly dealing with brick in these older structures and would like to find a product and/or procedure for eliminating (in a perfect world) or atleast reducing/slowing the sluffing process.  If anyone has any information or insite, please respond.

Thanks in advance,


RE: Brick sluffing

I would suggest contacting the Brick Institute, they should have the latest info. on this.

RE: Brick sluffing


"Sluffing" is caused by moisture soaking into the brick, then freezing. This is particularly prevelant in porous brick (such as sun dried, or unfired).

To limit this action a quality masonry sealer is applied on the brick surface and the mortar joints (to stop moisture intrusion) at the exterior (or any) areas prone to moisture.

RE: Brick sluffing

You can use a masonry sealer, however, moisturte that is already in the brick will be trapped which will further cause the brick to deteriorate.  

I agree with jheidt2543 contact the BIA.  They may be able to help direct you to the proper source.

If it isn't to much trouble, let me know what they say.


RE: Brick sluffing

We have called it spalling and ERV is correct as to the ultimate cause and CSEIIc is correct as to avoiding the trapping of moisture within brick.

In many cases, I've seen this in old basement walls.  It is difficult sometimes to excavate the exterior to remove the source of moisture, but this is difficult in some cases.  Any alternative that would either eliminate the moisture entering the brick from the outside, or at least reducing it is the goal.

Some have tried drilling holes into the brick, through the wall, and injecting grout or other substances to waterproof the wall but this is not always very successful.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


eBook - Functional Prototyping Using Metal 3D Printing
Functional prototypes are a key step in product development – they give engineers a chance to test new ideas and designs while also revealing how the product will stand up to real-world use. And when it comes to functional prototypes, 3D printing is rewriting the rules of what’s possible. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close