Basement wall water proofing

[Marv 919]

What are your thoughts on the UGL product  Drylok? I need to do my basement walls. I am working on removing previous finish from the concrete block. Thinking about trying to sand blast it off. Not really looking forward to that though. Is Drylok the way to go for sealer?

Marv

[WHNJ701 4,165]

I have a block house, I used dry lock with the 10 year rating.  it was last painted in the 1960s, it took a lot, 10 gallons to do, I just scrapped it real good.  also painted a 8" strip at the floor.  it's basically thick white paint with sand mixed into to it.  

it helped brighten up the basement and the condensation.  it doesn't solve water issues.

[peter lena 8,580]

having delt with this issue for years , first question ,water problem source? any way to divert  or  reduce water  flow point? mine was a fire place lower ash box , that was flooding with ground water. waterproofing  is temporary at best,  drilled and tapped a hole in the bottom of ash box wall. install nipple and a  "  1"  pipe tee  ", allowing me to drain out ,yet have access to route out a clog. garden hose to that and my sump pit , lets it naturally drain by it self, about a  3/8 " constant flow discharge . also went after town to clean out storm drains , reducing ground water. i know your problem is different , but  if you can reduce / divert  the ground   water to your foundation , that will help out , pete

[Marv 919]

On 4/21/2019 at 8:40 PM, jabelman said:

I have a block house, I used dry lock with the 10 year rating.  it was last painted in the 1960s, it took a lot, 10 gallons to do, I just scrapped it real good.  also painted a 8" strip at the floor.  it's basically thick white paint with sand mixed into to it.  

it helped brighten up the basement and the condensation.  it doesn't solve water issues.

Thanks for that info.

Marv

[Marv 919]

On 4/22/2019 at 8:15 AM, peter lena said:

having delt with this issue for years , first question ,water problem source? any way to divert  or  reduce water  flow point? mine was a fire place lower ash box , that was flooding with ground water. waterproofing  is temporary at best,  drilled and tapped a hole in the bottom of ash box wall. install nipple and a  "  1"  pipe tee  ", allowing me to drain out ,yet have access to route out a clog. garden hose to that and my sump pit , lets it naturally drain by it self, about a  3/8 " constant flow discharge . also went after town to clean out storm drains , reducing ground water. i know your problem is different , but  if you can reduce / divert  the ground   water to your foundation , that will help out , pete

Pete,

I am working that issue too in hopes it will solve the problem.

thanks

Marv

[rjg854 11,350]

I  attacked my basement water problem by taking up the concrete 16" away from the walls and installing perimeter drainage and then to a daylight gravity drain.  Then replacing the concrete.   The foundation which is poured concrete, never had any type of drainage.  Then drylocked the walls. I love my basement now.  I used to call it the pit.  Not totally dry, there is still a damp spot, but no longer floods.

[Dakota8338 115]

On 4/21/2019 at 7:07 PM, Marv said:

 

Can you install a 'French Drain' around the perimeter of the basement?

[WHNJ701 4,165]

take a good look at your gutters and make sure your leaders go far away from the house too

[953 nut 55,075]

We had moisture problems at my church which had been "repaired" several times over a twenty year period. Five years ago we trenched two feet wide around the basement down to below the footers. The foundation was pressure washed and after it dried hot tar was sprayed on and insulation board was applied to the tar. Drainage pipes were laid in the trench and routed to the daylight side of the basement. The trench was then filled with coarse gravel topped off with rubber mulch.

This approach seemed extreme, but the result has been a dry basement and about 2500 square feet of habitable space which had been unusable added to our Church.