Waterproofing system
SBS Waterproofing Systems
SBS waterproofing systems use styrene-butadiene-styrene modified bitumen membranes for elasticity and low-temperature flexibility. PetroGrip SBS (typically 3 mm polyester-reinforced, torch-applied) is used on basements, podiums, and structures where movement accommodation matters.
System build-up
- Primer on prepared substrate
- PetroGrip SBS membrane
- Optional second ply where designed
- Protection layer before backfill or finishes
Substrate
- —Concrete foundations, rafts, retaining walls
- —Roof decks under protection
Critical details
- —Raft-to-wall continuity
- —Construction joints
- —Pipe penetrations
Limitations
- —Thickness and ply count are design decisions
Installation sequence
- Assess hydrostatic risk
- Prime
- Install SBS
- Detail
- Protect
Related applications
- Basement Waterproofing Pakistan
Basement waterproofing in Pakistan typically requires a positive-side membrane system designed for hydrostatic pressure,…
- Raft Waterproofing Pakistan
Raft waterproofing places a designed horizontal membrane assembly under or around the raft according to the structural w…
- Retaining Wall Waterproofing
Retaining wall waterproofing is typically a positive-side membrane on the soil face, protected before backfill, and coor…
- Podium Waterproofing Pakistan
Podium waterproofing must tolerate structural movement, landscaping loads, and wet–dry cycles while protecting occupied …
- Foundation Waterproofing Pakistan
Foundation waterproofing protects structural concrete against ground moisture and hydrostatic pressure. Petroseal uses b…
Related products
- PetroGrip SBS
SBS-modified torch membrane—3mm and 4mm with plain, aluminum, or granular surfacing.
Related projects
- Emporium Mall
Johar Town, Lahore
- LUMS University
Lahore
Technical downloads
- PetroGrip SBS Waterproofing Membrane TDS
Polyester-reinforced SBS-modified torch-applied bitumen membrane — 3 mm nominal thickness, 60/70 bitumen base.
Technical guides
- Basement Waterproofing with Bitumen Membrane Systems
Design and install basement waterproofing with PetroGrip SBS torch membrane and PetroSelfGrip sheets—substrates, laps, protection boards, and Lahore-manufactured systems for nationwide projects.
- APP vs SBS Bitumen Membrane: Which PetroGrip System Fits Your Project?
Compare PetroGrip APP and SBS torch-applied membranes—modifier chemistry, surfacing options, and where each system belongs in roof and below-grade build-ups across Pakistan.
- Torch-Applied Waterproofing: PetroGrip Site Practice
How PetroGrip torch-applied bitumen membranes are specified, primed, and welded on roofs and podiums—with quality checks that protect your warranty.
- How to Select a Basement Waterproofing System in Pakistan
A specification workflow: water table, access, joint strategy, and when to choose PetroGrip SBS, double-layer SBS, or cementitious remediation.
FAQ
- What flexibility does PetroGrip SBS claim?
- The published TDS references cold flexibility around ≤ −15 °C for the standard 3 mm product. Confirm current TDS values for submittals.