Petroseal
PetroGrip APP
PetroGrip APP (atactic polypropylene) torch applied membrane is manufactured by Petroseal for high softening point and excellent UV stability—ideal as the exposed cap sheet on flat roofs in Lahore, Karachi, Islamabad, and industrial sites nationwide. Rolls are torch-welded at laps on primed concrete, metal deck, or compatible substrates. Available in 2mm, 2.5mm, 3mm, and 4mm with plain, aluminum, or granular surfacing.
Key features
- — APP modifier for superior heat and UV resistance on exposed roofs
- — Thicknesses: 2mm, 2.5mm, 3mm, 4mm
- — Surfacing: Plain, Aluminum Layer, Granular Layer
- — Torch-welded laps for a continuous waterproof barrier
- — Manufactured in-house by Petroseal Enterprises
Applications
- — Exposed flat and sloped roofs (aluminum or granular cap sheet)
- — Roof on slab, beds, basements, retaining walls (plain finish)
- — Industrial plant roofs and terraces
- — Podium and plaza waterproofing with traffic-rated granular finish
Technical specs
Thickness
Surfacing
Roll width
Roll length
Pakistan climate recommendation
For fully exposed roofs in Punjab and Sindh, specify APP 4mm with Aluminum or Granular surfacing. Plain APP is typically used in protected layers or below finishes.
| Thickness | 4mm |
| Surfacing | Aluminum Layer |
| Roll width | 1m |
| Roll length | 10m |
Surfacing guide
- Plain: Roof on slab, beds, basements, retaining walls—protected or multi-ply build-ups.
- Aluminum Layer: Exposed areas subject to direct sun—reflective cap sheet on roofs.
- Granular Layer: Traffic-related areas; also selected for some basements and beds.
Performance profile
Technical guides
Application notes and specification articles for this product.
- 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.
Application map
- Exposed roof: APP + aluminum/granular—torch-welded cap sheet.
- On slab: Plain APP under protection course or tiles.