Effloresence is a process were excess water in the soil makes way into your slab before going into your home. Efflorescence will result in either water and/or a white/tan powder as shown above. The powder is minerals and salts in your slab the heave up and will damage anything including your slab in it's way.
Here is a diagram of how the Effloresence works...
Here is some important information about Efflorsence:
- It is powerful and will damage your slab, tile, overlay, stained concrete, polished concrete, lamniate, and wood floors leading to removal of the floors, adding a vapor barrier, and reinstalling new floors.
- It is not that common. We have only seen about 15 cases in 15 years.
- It seems to be most common in older slabs 20+ years old.
- It will damage floors, baseboards, walls, sheetrock, paint,texture, and insulation.
- It can cause mold and mildew
- It can cause high humidity levels in the home
- Likely water source is rain, broken/leeking pipe, pool, pond, over watering, slab is burried under ground with landscaping up to or near the bottom row of bricks on home.
- It is random and comes and goes as it pleases
- If it is due ot rain it usually will be highe in the spring, fall, winter, and storms/floods/ huricanes.
- If it is by a outside window it is likely a leak in the window
- If it's liner damage were you see a line of floor damage it is likely a pipe
- If damage is random it is likely a failed/failing slab barrier.
- Can also show up on slab cracks
- The only good news is it doesn't appear to be toxic to touch it.
Here is some pictures of the damage it can cause that we have seen over the years:
What are some exterior signs I may have it?
Here we see that the slab is 100% underground. So any water in the soil near it will be soaked up into the dry slab like a sponge n water. You may also see moss on the ground or on the bricks you do here along with wet soil even on sunny days. Clear indication that there is potential water damage inside the home.
Here is a great example of just how easy it is for Efflorescense to come into a home and some signs you may have it.
Here we have an example of what you want and what was there after the builder built the home.
You can see 5-6" of slab is showing and allowing any exces water to weep/evaporate to the outside. No mold, mildew, or algae. No Moss. The dirt is slopping water away from the home thus not allowing it to go into the home and damage it.
How can I avoid Efflorescence damaging my home or drive it out?
You can make sure you have...
- 5-7" of slab showing all around your property
- Sloped all water away from the home
- Fixed any leaky pipes
- 2-4" of other slabs showing like porches,patios, driveways, etc.
- Add a french drain if needed
- Are not over watering
- Fixed any pool or pond leaks
- Fixed any window/door leaks
Important Note: If you show any signs of water damage/presents be sure to install a whole house Vapor Barrier before installing any new flooring. Remember water is the number one cause of damage from highways the driveways. If you have any questions on this or other topics feel free to call or text us at: 281-706-5444.