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08: Waterproofing French Drains Exterior Insulation - Look Ahead

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Efficient Build

I will have an overview of the different products for waterproofing, french drains, and exterior insulation we will use as well as some of the reasoning for choosing what we did. I see these look ahead videos as information I wish I knew when I started and hope you find them useful.

Waterproofing
Concrete is porous and likes to absorb water, hence it is important to waterproof a basement foundation to prevent humidity from sipping in. Water/humidity can lead to mold and other undesirable consequences.
Our initial intent was to use PolyWall's full below grade waterproofing system, that includes:
Blue Barrier Joint Filler 2000
PolyWall Home Stretch Liquid Waterproofing.
Arroyo Drain
Why we didn't use the full PolyWall system but instead chose GCP Bituthene 4000 rated for below grade as it is thicker than its brother counterparts.
Quick PolyWall full system application:
Clean the surface
Apply Blue Barrier Joint Filler 2200: Fill gaps up to an inch big, it's mostly up to your discretion
Apply Home Stretch Liquid Waterproofing, either by rolling or spraying, you need 3 coats and takes one day for each to cure.
Apply Arroyo drain
https://polywall.com/waterproofings...
Additional Video references:
Matt Risinger Channel:    / mattrisinger  
PolyWall Waterproofing:    • DON'T Miss This Critical Waterproofin...  
French Drain Details:    • French Drain and Foundation Waterproo...  
PolyWall Liquid Membrane:    • Basement Waterproofing  Fluid Applie...  
GCP Bituthene System Application:
Clean surface
Fill gaps with Bituthene Liquid Membrane
Apply Bituthene 4000 Surface Conditioner
Apply Bituthene 4000
Finish concrete/membrane seem transitions with Mastic (Rubberized asphalt based mastic)
https://gcpat.com/en/solutions/produc...
Additional References:
Perkins Builder Brothers Channel:    / @perkinsbuilderbrothers  
French Drains
Why and what is its purpose
Nonwoven geotextile fabric
Burrito assembly
Additional References:
French Drain Details:    • French Drain and Foundation Waterproo...  
Insulation
Rockwool RClass Builder Program
Rockwool Insulation analysis for Zone 7 Comfortboard 80
Why we didn't use Rockwool below grade
https://gcpat.com/en/solutions/produc...
Why we chose Owens Corning Foamular 250 XPS insulation for below grade
https://www.owenscorning.com/enus/in...
Application
Clean surface
Apply adhesive
Drill holes for Rodenhouse Quick Grip
Additional References:
Matt Risinger How Much Insulation do I need?:    • How much Insulation Do I Need?  Exper...  
Matt Risinger Exterior Insulation:    • Rockwool Exterior Insulation vs Rigid...  
Mechanical Fasteners: https://www.trufastwalls.com/plastig...
Summary
All brands spoken for in this video are top notch and from our perspective would recommend all. As described in this video the decisions were made for our particular circumstances and timing of where we were.

Brands Discussed:
PolyWall
Rockwool
GCP
Owen's Corning
Truefast
Rodenhouse

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TIMESTAMPS
0:00 Intro
0:24 Foundation Waterproofing
6:25 French Drains
11:00 Exterior Insulation

posted by zabunaea