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Full-Fledged Exterior Foundation Waterproofing

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27:37
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4 Solutions to fix a wet basement plus Noob Mistakes

What happens here

Full-fledged exterior foundation waterproofing is the most invasive but effective solution. This involves excavating all soil down to the footing of the foundation. The foundation wall is then thoroughly cleaned, tuckpointed (repairing mortar joints), and coated with a waterproofing compound like Dry Seal Premium Rubberized Foundation Coating or Gray Shield Foundation Coating. A dimpled foundation wrap (like Platon DMX AG Foundation Wrap) or another waterproofing membrane is then applied, followed by insulation (polystyrene sheets) to protect the membrane and prevent freeze/thaw cycles. Finally, the trench is backfilled, first with permeable aggregate (like 3/4 inch clear rock or Class V aggregate) and then with non-permeable clay at the top to shed surface water. Proper compaction of the backfill is crucial to prevent future settlement issues.

Goal: Create a completely watertight and protected exterior foundation.

Tools and materials

  • Foundation Wrap — Providing an additional waterproofing layer and drainage plane
  • Mid or Mini Excavator Daewoo — Excavating soil around the foundation
  • Rubberized Foundation Coating Dry Seal — Applying a waterproof layer directly to the foundation walls
  • Tuck Pointing Tools — Repairing mortar joints in masonry walls
  • Mortar/Tuckpointing Compound — Repairing cracks and gaps in the foundation walls
  • Non-Permeable Clay — Backfilling the top portion of the trench to shed surface water
  • Permeable Aggregate — Backfilling the lower portion of the trench to allow water to drain

What they say

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wash out all right now the third option which is one of the most invasive options but sometimes it's necessary it's full fledged foundation waterproofing and that's retrofitting a foundation like we have here and we excavate all of the soil all the way down to the footing we expose the footing so the wall will come down and we'll have a footing it will rest on we expose that footing as well all the way down to the bottom of that footing we then take a waterproofing compound we technically we clean off the wall we get it perfectly clean then tuck point the wall so any holes or damage to the wall if it's a CMU a concrete masonry unit wall we then got a tuck point at a lot of times those walls will have chipped blocks reroll blocks or problems in them then we use a waterproofing compound over the top of that that can you can use any local waterproofing compound that you choose item in Lowe's and something just happened that I want to make sure that doesn't happen to you guys I asked for their foundation waterproofing and they brought me to this which is foundation waterproofing but it's only for the inside it's not for the outside so although this is the right stuff you can't use it on the exterior of your foundation so we got to go find that so if somebody tells you that stuff it's right the wrong here we go here we go here we go a dry sealed premium rubberized Foundation coating that's just the same thing just great dries gray this dries black black gray non fiber foundation coating so you can see that this stuff is actually designed specifically for foundations versus something that is designed sometimes they'll try to sell you a roof compound as a foundation coating I don't prefer to use that you can use also waterproofing membrane we've used that in the past those are a prefabricated membrane specifically designed for waterproofing applications now I had to go to three different stores to find this I started at Home Depot I then went to Lowe's and finally found the materials at Menards now this stuff is not as easy to work with as the rubberized compound but here's what it looks like well nobody seems to know any of the stuff that I'm looking for alright the search for this waterproofing membrane brought me to Menards I think I found it it's called plet on its dimpled and there it is there it is this is the stuff almost impossible to find this stuff but there you go that is the membrane that we we use to put over the foundation wall not as user-friendly…

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