▽ +06.00Engineering Hub
Typical technical details
Fifteen waterproofing details drawn as numbered engineering sections — from parapets, corners and penetrations to joints, basements, tanks and pools — each with notes and a PDF sheet.
+01.00The library
Find a detail by where it is applied
15 details
- PS-D-01Section
Roof parapet
The membrane turned up the parapet over a fillet, terminated with a fixed bar and sealant under a metal counter-flashing.Roofs & terracesPDF sheet · 323 KBView the detail - PS-D-02Section
Internal corner
A wall–floor internal angle: fillet, primer, a reinforcing strip embedded in the first coat and two continuous coats.Bathrooms & wet areasRoofs & terracesWater tanksPools & water featuresPDF sheet · 309 KBView the detail - PS-D-03Plan
External corner
An external wall corner in plan: chamfered arris, reinforcing strip, membrane wrapped with no laps at the corner, protection board.Basements & foundationsPDF sheet · 367 KBView the detail - PS-D-04Section
Pipe penetration
A pipe through the slab: a cast-in sleeve with a sealed annulus, and a collar of the waterproofing system turned up the pipe, clamped and sealed.Roofs & terracesBathrooms & wet areasJoints & penetrationsWater tanksPools & water featuresPDF sheet · 294 KBView the detail - PS-D-05Section
Roof drain
A two-level roof drain: the membrane clamped onto the drain flange, and a perforated extension that takes water at membrane and finish level.Roofs & terracesJoints & penetrationsBathrooms & wet areasPlanters & landscapePDF sheet · 325 KBView the detail - PS-D-06Section
Roof expansion joint
A structural expansion joint on raised kerbs: membrane over both kerbs, a flexible band looped over the gap, and a cover fixed on one side only.Roofs & terracesJoints & penetrationsPDF sheet · 317 KBView the detail - PS-D-07Section
Construction joint at a wall kicker
A cold joint between the base and a basement or tank wall: roughened surface, a cast-in waterstop where specified, and a crystalline-treated chase along the joint.Basements & foundationsWater tanksPools & water featuresJoints & penetrationsPDF sheet · 318 KBView the detail - PS-D-08Section
Foundation and raft edge
A membrane under the raft on blinding, protected by a screed, turned up a blockwork upstand that forms the raft edge and folded over its top, where the wall membrane laps onto it.Basements & foundationsPDF sheet · 341 KBView the detail - PS-D-09Section
Basement wall
External basement wall tanking: membrane on primer, protection board, drainage composite with filter, perimeter drain, and the membrane terminated above ground.Basements & foundationsPDF sheet · 320 KBView the detail - PS-D-10Section
Retaining wall
A retaining wall waterproofed on the soil side: fillet at the base, membrane, protection board, drainage layer and gravel, and a perforated drain at the heel.Basements & foundationsPlanters & landscapePDF sheet · 352 KBView the detail - PS-D-11Section
Tank wall–floor junction
The inside corner of a tank: repair and levelling mortar, a cove, primer and continuous lining coats — with a waterstop in the kicker joint.Water tanksPDF sheet · 311 KBView the detail - PS-D-12Section
Swimming pool: wall, floor and edge
Pool edge and corner: two-coat cementitious waterproofing with corner reinforcement under the tiles, carried over the wall head and under the deck.Pools & water featuresPDF sheet · 316 KBView the detail - PS-D-13Section
Planter
A planter waterproofed inside: a root-resistant membrane or a root barrier, drainage layer and filter, a clamped outlet, and a termination above soil level.Planters & landscapePDF sheet · 359 KBView the detail - PS-D-14Section
Podium deck
A podium over a basement: screed to falls, membrane, protection board, insulation where needed, drainage layer and filter, and pavers on bedding — with the membrane turned up the building wall.Parking & traffic areasPlanters & landscapeRoofs & terracesPDF sheet · 356 KBView the detail - PS-D-15Section
Movement joint in floors
A flush movement joint in a waterproofed floor: flexible joint tape looped over the slab joint, and the joint carried through the screed and finish with sealant over a backer rod.Joints & penetrationsParking & traffic areasPDF sheet · 306 KBView the detail
No detail for this application yet.
+02.00Reading the drawings
Material key and conventions
Every drawing uses the same language: three line weights and one hatch and colour per material — concrete slate, membranes lime, liquid coats and sealants yellow, thermal insulation sky blue, protection and drainage teal, primers amber, water blue. The numbers in a drawing match the list beside it.
- Concrete
- Screed / bedding
- Repair mortar / fillet
- Waterproofing membrane
- Liquid or cementitious coat
- Primer
- Protection board
- Thermal insulation
- Drainage layer
- Geotextile (filter / separation)
- Soil / backfill
- Gravel
- Sealant
- Backer rod
- Metal (termination bar, flashing, clamping ring)
- Compressible filler
- Blockwork
- Water
- Dimensions are symbols (h, L, w, d, k): their values follow the approved specification and the manufacturer’s requirements on each project.
- Levels: FFL finished floor, FGL finished ground, GWL groundwater, TWL / WL water level.
- NTS: not to scale — the proportions are engineered, but the drawings are not for measuring.
Project files
Your project details in DWG or BIM
The details here are typical. Shop details for each project are prepared for the approved system and the project drawings; DWG and BIM files are sent on request.
QQuestions
Questions clients ask
What are typical waterproofing details, and why do they matter?
Drawings showing how the layers are arranged at the critical points — parapets, corners, drains, pipe penetrations and joints. Most leaks start at these points, and a typical detail is adapted to each project’s design and approved system.