6-Layer Engineered System
RAINCARE BRC 6 LAYER SYSTEM
Polymer-Modified Brick Bat Coba — Roof Rehabilitation
Old building roof rehabilitation — polymer-modified Brick Bat Coba
System Architecture
Layer-by-Layer Configuration
Read from top (final protective layer) down to the substrate.
6
TOPCOAT / FINISH
Crystalline/Acrylic Finish
Monolithic elastomeric protective finish providing liquid impermeability
5
WATERPROOF MEMBRANE
Protective Screed/Plaster
High-strength polymer-modified screed with water-reducing admixtures
4
WATERPROOF MEMBRANE
Inter-Fill Grouting Layer
Non-shrink polymer grout sealing all voids between elements
3
WATERPROOF MEMBRANE
Brick Bat Coba Core
High-density brick bat in cementitious mortar — gradient and thermal mass
2
WATERPROOF MEMBRANE
Base Cushion Mortar
Polymer-modified bedding layer for structural aggregates
1
PRIMER / BOND
Slurry Primer Bond Coat
Acrylic polymer-cement bonding slurry (ROOFBOND SBR) on raw slab
SubstrateConcrete / Screed / Masonry
PRIMER / BOND
WATERPROOF MEMBRANE
REINFORCEMENT
TOPCOAT / FINISH
LAYERS
6 Layers
Complete system from bonding slurry to final waterproof finish
STRENGTH
25 N/mm²
Mortar core compressive strength at 28 days
ABSORB
< 0.5%
Water absorption — highly impermeable finished system
Performance Data
System Specification
Compressive Strength (Mortar Core)
≥ 25 N/mm² at 28 days
Water Absorption
< 0.5%
Total Thickness
75–120mm (depending on gradient requirements)
Curing
Wet curing for minimum 7 days after screed before final layers
Supply
Multi-component kit (SBR polymers, admixtures, non-shrink grouts)
Application Sequence
How This System Is Installed
- 1Slurry Primer Bond CoatAcrylic polymer-cement bonding slurry (ROOFBOND SBR) on raw slab
- 2Base Cushion MortarPolymer-modified bedding layer for structural aggregates
- 3Brick Bat Coba CoreHigh-density brick bat in cementitious mortar — gradient and thermal mass
- 4Inter-Fill Grouting LayerNon-shrink polymer grout sealing all voids between elements
- 5Protective Screed/PlasterHigh-strength polymer-modified screed with water-reducing admixtures
- 6Crystalline/Acrylic FinishMonolithic elastomeric protective finish providing liquid impermeability
Applicable Structures
Where This System Excels
Old Building Roof Rehabilitation Traditional Brick Bat Coba Upgrades Sloped Terrace Systems
Component Products
Referenced Armstrong Products
Site-Specific Estimate
Get an engineered quote for RAINCARE BRC 6
Our technical team specifies each layer to your substrate, gradient, and exposure. Toll-free consultation available across India.