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Tar paper vs. Plastic for foundation wall waterproofing



 
 
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  #1  
Old June 17th 07, 04:08 AM posted to alt.home.repair
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Posts: 26
Default Tar paper vs. Plastic for foundation wall waterproofing

Dear Readers,

I've a block foundation wall with full basement. After heavy rains,
water seeps in from one part of the wall and has bubbled the paint
about 6" above the floor and seeped up along the edge between the wall
& floor in the same area.

I want to excavate the exterior, install a sloped perf pipe drain
along the footing, apply a dampproofing coating to the exterior wall,
and apply either tar paper or plastic sheeting over the
dampproofing.

Is tar paper better than plastic to waterproof the wall? If plastic,
what thickness? The thickest plastic I can find at HomeDepot is 6mil,
but I'm concerned that it might tear.

All suggestions appreciated!

-Anthony M. Falcone

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  #2  
Old June 17th 07, 01:41 PM posted to alt.home.repair
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Posts: 227
Default Tar paper vs. Plastic for foundation wall waterproofing

On Jun 16, 11:08 pm, wrote:
Dear Readers,

I've a block foundation wall with full basement. After heavy rains,
water seeps in from one part of the wall and has bubbled the paint
about 6" above the floor and seeped up along the edge between the wall
& floor in the same area.

I want to excavate the exterior, install a sloped perf pipe drain
along the footing, apply a dampproofing coating to the exterior wall,
and apply either tar paper or plastic sheeting over the
dampproofing.

Is tar paper better than plastic to waterproof the wall? If plastic,
what thickness? The thickest plastic I can find at HomeDepot is 6mil,
but I'm concerned that it might tear.

All suggestions appreciated!

-Anthony M. Falcone


Neither sheet material will work well by itself.
The wall must be sealed.
Here is one way to do it:
Clean the exposed wall with a power washer and allow a day or two for
it to dry.
Repair chips, cracks, or holes to seal and give a relatively even
surface.
Using brush or roller, coat the surface. Make sure all pores are
sealed.
Use fiberd or non-fibered roof & foundation coating.
Allow coating to cure for a day or two.
Protect coating with asphalt felt paper or inulation sheeting.
T

  #3  
Old June 17th 07, 01:55 PM posted to alt.home.repair
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Posts: 478
Default Tar paper vs. Plastic for foundation wall waterproofing

On Jun 16, 10:08 pm, wrote:
Dear Readers,

I've a block foundation wall with full basement. After heavy rains,
water seeps in from one part of the wall and has bubbled the paint
about 6" above the floor and seeped up along the edge between the wall
& floor in the same area.

I want to excavate the exterior, install a sloped perf pipe drain
along the footing, apply a dampproofing coating to the exterior wall,
and apply either tar paper or plastic sheeting over the
dampproofing.

Is tar paper better than plastic to waterproof the wall? If plastic,
what thickness? The thickest plastic I can find at HomeDepot is 6mil,
but I'm concerned that it might tear.

All suggestions appreciated!

-Anthony M. Falcone


I have seen plastic work. Use two layers--the outer layer gets pulled
down as the backfill settles. I would think felt would be hard to keep
on the wall during backfill. However, as long as you are going to the
expense of digging it up, why not use a peel and stick membrane? WR
Meadows Sealtite or Bituthene 4000 are a couple of many brands.

  #4  
Old June 17th 07, 02:26 PM posted to alt.home.repair
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Posts: 6,205
Default Tar paper vs. Plastic for foundation wall waterproofing


Yeah membrame costs more but MUCH more effective!

DRAIN PIPE MUST MUST MUST be BELOW FOOTER LEVEL! Or your water will
move from wall to floor level!

Been there done all this.

Honestly its way less work and expense to install a indoor french
drain system.

No exterior digging. No digging it up again in a number of years when
the drain line gets clogged with dirt, trust me sooner or later it
will. no replacing plantings and lawn in effected area. system also
removes water from below floor so high seasonal water table is no
problem.

first make certain gutters are clean, downspout water goes at least 15
feet from foundation, and ground slopes AWAY from home.

I spent a summer and over 10 grand DIY trying to fix water problem
from outdoors. hired contractors for some I was laborer

Installed outdoor perimeter drain, actually replaced old clogged one,
a former owner had installed. backfilled to grade with rock, expensive
since sidewalk being replaced, cant put new sidewalk on dirt it will
crack, waterproffed outside walls, had many dump truck loads of excess
dirt hauled away, new downspot a drain lines, all new resloped lawn.


high water table resulted in water coming up thru floor..... after all
that money
and expense

had interior french drain and sump pump installed for under 4 grand
that fixed it all. should of done that from beginning

would of saved a summers hard work, although yard looked wonderful
when it was complete.........

save yourself a lot of grief fix it from inside...

from one who has been there done that.........

  #5  
Old June 17th 07, 03:15 PM posted to alt.home.repair
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Posts: 30
Default Tar paper vs. Plastic for foundation wall waterproofing

When I did mine I rolled on the foundation tar coating and while still wet
stuck 6 mil plasic up against it, that plastic is never going anywhere now.

wrote in message
oups.com...
Dear Readers,

I've a block foundation wall with full basement. After heavy rains,
water seeps in from one part of the wall and has bubbled the paint
about 6" above the floor and seeped up along the edge between the wall
& floor in the same area.

I want to excavate the exterior, install a sloped perf pipe drain
along the footing, apply a dampproofing coating to the exterior wall,
and apply either tar paper or plastic sheeting over the
dampproofing.

Is tar paper better than plastic to waterproof the wall? If plastic,
what thickness? The thickest plastic I can find at HomeDepot is 6mil,
but I'm concerned that it might tear.

All suggestions appreciated!

-Anthony M. Falcone



  #6  
Old June 17th 07, 05:12 PM posted to alt.home.repair
external usenet poster
 
Posts: 26
Default Tar paper vs. Plastic for foundation wall waterproofing

On Jun 17, 10:15 am, "Greg" wrote:
When I did mine I rolled on the foundation tar coating and while still wet
stuck 6 mil plasic up against it, that plastic is never going anywhere now.


One concern is the plastic may get brittle in a few years, no?
Whereas tar paper may not. Now granted, tar paper would not be water
"proof." It would just make it difficult to go through the wall and
encourage the water to go down to the perforated perimeter drain.

  #7  
Old June 17th 07, 06:43 PM posted to alt.home.repair
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Posts: 326
Default Tar paper vs. Plastic for foundation wall waterproofing


wrote in message
ups.com...
On Jun 17, 10:15 am, "Greg" wrote:
When I did mine I rolled on the foundation tar coating and while still
wet
stuck 6 mil plasic up against it, that plastic is never going anywhere
now.


One concern is the plastic may get brittle in a few years, no?
Whereas tar paper may not. Now granted, tar paper would not be water
"proof." It would just make it difficult to go through the wall and
encourage the water to go down to the perforated perimeter drain.


Check this out:

http://cosella-dorken.com/


  #8  
Old June 17th 07, 07:50 PM posted to alt.home.repair
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Posts: 478
Default Tar paper vs. Plastic for foundation wall waterproofing

On Jun 17, 11:12 am, wrote:
On Jun 17, 10:15 am, "Greg" wrote:

When I did mine I rolled on the foundation tar coating and while still wet
stuck 6 mil plasic up against it, that plastic is never going anywhere now.


One concern is the plastic may get brittle in a few years, no?
Whereas tar paper may not. Now granted, tar paper would not be water
"proof." It would just make it difficult to go through the wall and
encourage the water to go down to the perforated perimeter drain.


Plastic would not get brittle below grade. But if you want to
encourage the water to go down and into the drain tile, as another
poster is suggesting, you use a dimple membrane in addition to
dampproofing. http://www.systemplaton.com/. What this product
accomplishes is reduces hydrostatic pressure against the foundation.
Backfilling with sand accomplishes the same thing.

  #10  
Old June 18th 07, 02:28 AM posted to alt.home.repair
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Posts: 53
Default Tar paper vs. Plastic for foundation wall waterproofing

I have no idea which is better, but I have heard an important thing to do is
backfill with gravel, not dirt. This'll stop water pressure from pushing
against the wall and making its way through.


 




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