Waterproofing specialist
An 8-step waterproofing path: chemical and roof safety, diagnosing leak sources, cementitious coatings, torch-on membranes, PU and polyurea, bathrooms, roof terraces, external walls and PU injection to stop active leaks. Graduates can survey, quote and guarantee residential jobs; suits patient people who like finding root causes.
Start here
Step 1: Chemical, torch & roof safety
One short lesson per step, 10–15 minutes on a phone. No sign-up needed.
Hands-on roadmap
Roadmap
- Step 1Lesson
Chemical, torch & roof safety
Read safety labels for PU, epoxy and solvents; gloves, goggles and vapour masks; safe gas torch use with an extinguisher nearby; harness use on roofs without railings.
No English content for this step yet.
- Step 2Lesson
Diagnosing leaks & site surveys
Tell apart pipe leaks, wall cracks, construction joints, pipe penetrations and condensation; use moisture meters, 24 to 48 hour flood tests, photos and survey forms.
Requires: Chemical, torch & roof safety
No English content for this step yet.
- Step 3Skill
Cementitious coatings & pipe collars
Clean and roughen, form cove fillets; apply two-part cementitious coatings in enough layers, reinforce corners and pipe penetrations with mesh, use non-shrink grout.
Requires: Diagnosing leaks & site surveys
No English content for this step yet.
- Step 4Skill
Bathroom & balcony waterproofing
Pre-tiling sequence: prepare the slab, waterproof floors and at least 30 cm up walls, higher in showers; flood test and sign off before screeding.
Requires: Cementitious coatings & pipe collars
No English content for this step yet.
- Step 5Skill
Roof terraces: torch-on membranes & PU
Lay torch-on bitumen membranes with proper laps, apply water or solvent-based PU and polyurea, treat expansion joints and add protection; blistering from damp substrates is common.
Requires: Bathroom & balcony waterproofing
- Step 6Skill
External walls, cracks & PU injection
Seal wall cracks with elastic sealants and apply exterior waterproof paint; inject expanding PU through packers to stop active leaks in basements, tanks and joints.
Requires: Roof terraces: torch-on membranes & PU
No English content for this step yet.
- Step 7Project
Project: fix a leaking roof terrace
Survey, find the source, choose materials, complete the job and flood test for 48 hours; records include photos of each layer, sign-off notes and a warranty card.
Requires: External walls, cracks & PU injection
No English content for this step yet.
- Step 8Assessment
Assessment, quoting & warranties
Diagnose leaks from real photos, practise cove fillets and pipe collars; quote per m2 with extras, and state clear warranty terms and duration for clients.
Requires: Project: fix a leaking roof terrace
No English content for this step yet.
