Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Concrete, Stone & Masonry

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-29-2014, 01:56 PM   #1
Newbie
 
Join Date: Mar 2014
Location: S. Michigan
Posts: 11
Rewards Points: 0
Share |
Default

Waterproofing slab porch that covers foundation


Hi All,

I have 1951 Cape Code with a cement slab porch that rests on a cinder block foundation (i.e., the basement extends under the porch). An outer corner of the porch slab, next to the downspout, is cracked and allowing water into the foundation. The seam where the slab meets the house will allow water into the basement in a driving rain. House is in southern Michigan.

I would like to waterproof these areas ASAP. Any recommendations on how to proceed? Here's what I got:

1) Remove planks from wooden porch for access. Keep the frame of the porch intact. See image porch_overview.jpg.

2) Build out wet corner (see image porch_leaking_corner.jpg). What cement product should I use?

3) Seal slab seam that adjoins house. If the pitch of the slab is wrong, how to correct? What product should I use to seal this seam?

4) Is there additional water proofing I should do to the slab while I have access? I plan to paint the porch, foundation and to powerwash the house once I've got the water issue taken care of.

Thanks!
Attached Thumbnails
Waterproofing slab porch that covers foundation-porch_overview.jpg   Waterproofing slab porch that covers foundation-porch_leaking_corner.jpg  

nearlycivil is offline   Reply With Quote
Old 03-29-2014, 02:32 PM   #2
Newbie
 
Join Date: Mar 2014
Location: S. Michigan
Posts: 11
Rewards Points: 0
Default

Waterproofing slab porch that covers foundation


Here's a pic from inside the basement looking at the wet corner. Note discoloration. No need to repair the foundation, right? Please say yes.


nearlycivil is offline   Reply With Quote
Old 03-29-2014, 02:47 PM   #3
Member
 
Join Date: May 2012
Location: Sarasota,Florida
Posts: 1,551
Rewards Points: 6
Default

Waterproofing slab porch that covers foundation


You can also use epoxy to fix the leak, watch the video in the link.


http://www.mudsupply.com/Simpson-Str...FU4R7AoddTQASA
Canarywood1 is offline   Reply With Quote
The Following User Says Thank You to Canarywood1 For This Useful Post:
nearlycivil (03-29-2014)
Old 04-05-2014, 09:15 PM   #4
Newbie
 
Join Date: Mar 2014
Location: S. Michigan
Posts: 11
Rewards Points: 0
Default

Waterproofing slab porch that covers foundation


Progress report and request for feedback. Plan is to remove the decking and use Black Jack asphalt roof cement with mesh tape to seal the areas along the outer edge of the porch where previously applied cement fixes are cracking. This might screw up water drainage.


Where the slab meets the house I've got masonry silicone and will lay a bead (thick as possible) along the length. Of course, the siding is in the way. How would you deal with this part?
nearlycivil is offline   Reply With Quote
Old 04-06-2014, 03:06 AM   #5
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,195
Rewards Points: 12
Default

Waterproofing slab porch that covers foundation


not so fast,,, nothing you can apply to the inside will stop water from penetrating your home's very fine basement wall it will PROBABLY hide it from interior view & from reappearing at the same location but ( trust me on this ) you will continue to see the problem

no matter who's product you put there, water will still run downhill
stadry is offline   Reply With Quote
Old 04-06-2014, 03:14 AM   #6
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,195
Rewards Points: 12
Default

Waterproofing slab porch that covers foundation


sorry to be late to the dance,,, very busy w/work ( conc repairs & bsmt wtrproofing stuff )

UNLESS you can guarantee yourself there will NEVER be any movement where you put the black ****, don't use it - its not flexible & will eventually crack so you'll be back where you started,,, we use either hlm500 or hydralastic - either is a great product - as permanent as you can buy, bridges cracks, has great adhesion to a properly prepp'd surface, & is elastomeric,,, for what it does, either product's very cheap.

you could also use ' herculiner ' truck bedliner - those guys are in chicago - find 'em on ebay [ no $ interest in either product ]

your choice to redirect any water ( drainage ),,, just remember it runs downhill, seeks its own level, & takes the path of least resistance

1 last thing - stay OUT of apron/vest stores,,, IF you want pro results, go to where pro's buy
stadry is offline   Reply With Quote
The Following User Says Thank You to stadry For This Useful Post:
nearlycivil (04-06-2014)
Old 04-06-2014, 04:28 PM   #7
Newbie
 
Join Date: Mar 2014
Location: S. Michigan
Posts: 11
Rewards Points: 0
Default

Waterproofing slab porch that covers foundation


Quote:
Originally Posted by itsreallyconc View Post
use either hlm500 or hydralastic - either is a great product - as permanent as you can buy, bridges cracks, has great adhesion to a properly prepp'd surface, & is elastomeric
The hyrdralastic looks like a good tip. If I went that route could I leave the sleeper boards down and seal around them? In that case, a driving rain might leave puddles but that only happens a few times a year. I'm looking for a 5-10 year solution.
nearlycivil is offline   Reply With Quote
Old 04-07-2014, 03:46 AM   #8
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,195
Rewards Points: 12
Default

Waterproofing slab porch that covers foundation


not knowing your location, i have no idea - that's why you were asked to incl it

i don't like it when anything under OUR roof gets wet even it if only happens a few times a year maybe that's just me, tho,,, there is no 5 - 10yr solution,,, 1 either repairs it correctly OR keeps dicking around w/it when failure occurs
stadry is offline   Reply With Quote
Old 04-07-2014, 09:15 AM   #9
Newbie
 
Join Date: Mar 2014
Location: S. Michigan
Posts: 11
Rewards Points: 0
Default

Waterproofing slab porch that covers foundation


House is in Southern Michigan. I did include it in the OP (even read the instructions before posting here ).
nearlycivil is offline   Reply With Quote
Old 04-07-2014, 09:32 AM   #10
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,195
Rewards Points: 12
Default

Waterproofing slab porch that covers foundation


miss'd it - look'd @ your logon only,,, apologies !
stadry is offline   Reply With Quote
Old 04-07-2014, 09:35 AM   #11
Newbie
 
Join Date: Mar 2014
Location: S. Michigan
Posts: 11
Rewards Points: 0
Default

Waterproofing slab porch that covers foundation


Quote:
Originally Posted by itsreallyconc View Post
miss'd it - look'd @ your logon only,,, apologies !
I've also updated my profile. Didn't realize that's where folks looked.

nearlycivil is offline   Reply With Quote
Reply

Tags
foundation, leak, porch, slab, water


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Plumbing in foundation slab quantumkev Concrete, Stone & Masonry 17 01-29-2014 10:08 PM
Load test on a porch railing RustyRealtor Building & Construction 15 12-01-2013 10:46 AM
concrete slab poor against foundation without a expansion joint tnice Concrete, Stone & Masonry 16 04-13-2013 07:12 AM
Adding to Concrete Porch + Steps? 99altrade Building & Construction 8 08-01-2011 12:14 PM
Concrete slab to foundation work tntgarv Building & Construction 3 02-28-2010 12:23 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.