Building Envelope
Foundations & Below Grade
Waterproofing for foundations, retaining walls and below-grade structures, matched to the water condition and reviewed technically.
ConcreteMasonry
Technical review required. This application involves conditions (such as chemical exposure or hydrostatic pressure) that must be assessed for your specific project before a system is specified.
Why this application fails
Where problems start
- Hydrostatic pressure drives water through defects
- Construction joints and tie-holes leak
- Backfill damages an unprotected membrane
- Negative-side conditions are misjudged
Conditions to evaluate
- Water table and hydrostatic pressure
- Positive- vs negative-side access
- Soil chemistry and drainage
- Structural movement and joints
Candidate system paths
Systems that commonly apply
Common substrates
ConcreteMasonry
Products used
Critical details
Where the work is won or lost
- Cold and construction joints
- Wall-to-footing coves
- Penetrations and tie-holes
- Above-grade terminations
Specification checklist
What to confirm
- Water-condition assessment
- Positive/negative-side decision
- Joint and penetration detailing
- Protection and backfill sequencing
- Inspection before cover
Project example
Verified case study
A verified project example for this application will be published here once an authorized case study — with documented conditions, system and rights — is available. We do not publish unverified or illustrative projects.
FAQ
Foundations & Below Grade — common questions
Can waterproofing be applied from inside?
Negative-side (interior) waterproofing is possible in some conditions but is demanding under hydrostatic pressure. The approach is decided by technical review of the specific structure and water condition.
Have a foundations & below grade project?
Share the conditions and photos for a confirmed recommendation.
Fast Project ReviewQuick turnaround on every request.
Expert RecommendationsThe right system for your conditions.
Dedicated SupportFrom selection to installation.