How much material do I need for my terrace?

Coverage is given per coat. RAINSEAL HFC 5 Layer System, RAINPROOF PBR 5 Layer System and CONPROOF FPA 5 Layer System cover 18–20 sq.ft per litre per coat. RAINPROOF PHC 5 Layer System covers 16–18 sq.ft per litre per coat. Coverage is not listed for the other systems, so check the product page or ask Armstrong for those.

What is the difference between an acrylic and a polyurethane system?

Both form a flexible fibre reinforced membrane. The acrylic systems, RAINSEAL HFC and CONPROOF FPA, list elongation above 250% and 280% with excellent UV resistance. The polyurethane RAINPROOF PUF 5 Layer System lists elongation above 400% and superior abrasion resistance, and is listed for high-traffic terraces and car park decks. RAINPROOF PBR is a hybrid of the two.

What are the layers in a 5 layer waterproofing system?

The systems follow the same pattern. A primer coat goes on the cleaned and repaired surface. The first base coat follows, and a fibre reinforcement mesh is embedded in it while wet. A second base coat covers the mesh. On RAINSEAL HFC, RAINPROOF PBR and RAINPROOF PHC a UV-resistant or UV-stable topcoat is applied after 24 hours.

Which system can I use on a basement?

Two systems list basements. RAINPROOF PHC 5 Layer System is for roofs, basements and podiums, with elongation above 350% and crack bridging up to 3 mm. CONPROOF FPA 5 Layer System is for concrete roofs, basements and structures, and lists basement walls and floors with excellent adhesion to concrete and masonry.

Multi Layer Waterproofing Systems for Terraces

Multi-Layer Waterproofing Systems

On a roof, multi layer waterproofing systems build up a fibre reinforced liquid membrane in stages: a primer, base coats with a mesh bedded in between, and a topcoat. This range covers 5 layer waterproofing in acrylic, polyurethane and PU hybrid bases, plus a 6 layer heat reflective system and a 7 layer polyurethane system. Many are listed for terraces and work as a terrace waterproofing system, and some also cover podiums, basements, car park decks and planter areas. Use the chooser below to find the system that fits your roof.

Which system do I need?

Home terrace or balcony

Acrylic and PU blended acrylic systems listed for residential terraces

RAINSEAL HFC 5 Layer System RAINCARE PRC 5 Layer System

Terrace with heavy foot traffic

Polyurethane based systems with superior abrasion resistance

RAINPROOF PUF 5 Layer System RAINPROOF PBR 5 Layer System

Basement as well as roof

Listed for basements, roof terraces and podium decks

RAINPROOF PHC 5 Layer System CONPROOF FPA 5 Layer System

Roof that gets very hot

Heat reflective 6 layer system, or heat resistant up to 80°C

RAINCARE BRC 6 Layer System RAINCARE PRC 5 Layer System

Terrace with planters

Listed for planter areas or planter boxes, with crack bridging

RAINSEAL HFC 5 Layer System RAINPROOF PHC 5 Layer System

Airport, data centre or critical building

7 layer advanced PU system, elongation above 500%

RAINCARE PUA 7 Layer System

Compare the range

5 layer systems compared

Product	Base	Elongation	Coverage	Use it for
RAINCARE PRC 5 Layer System	PU blended acrylic, fibre reinforced	> 300%	See product page	Residential terraces, commercial roofs, podium decks, balconies
RAINPROOF PUF 5 Layer System	Polyurethane, fibre reinforced	> 400%	See product page	Industrial roofs, high-traffic terraces, car park decks
RAINSEAL HFC 5 Layer System	Acrylic elastomeric polymer, fibre reinforced	> 250%	18–20 sq.ft per litre per coat	Residential terraces, podium decks, balconies, planter areas
RAINPROOF PBR 5 Layer System	Polyurethane acrylic hybrid	> 300%	18–20 sq.ft per litre per coat	Industrial roofs, high-traffic terraces, car park decks, exposed walkways
RAINPROOF PHC 5 Layer System	Advanced polyurethane hybrid	> 350%	16–18 sq.ft per litre per coat	Basements, roof terraces, podium decks, water retaining structures
CONPROOF FPA 5 Layer System	Acrylic elastomeric polymer, fibre reinforced	> 280%	18–20 sq.ft per litre per coat	Concrete roof slabs, basement walls and floors, podium decks

6 and 7 layer systems compared

Product	Base	Elongation	Key property	Use it for
RAINCARE BRC 6 Layer System	Hybrid acrylic, fibre reinforced, 6 layers	> 350%	Heat reflectance > 80%, heavy duty abrasion resistance	Large commercial roofs, hospital terraces, school buildings
RAINCARE PUA 7 Layer System	Advanced polyurethane, fibre reinforced, 7 layers	> 500%	Weathering 3000+ hours (ASTM G-154)	Critical infrastructure, airports, data centres

Showing 8 in Multi-Layer Waterproofing Systems

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Multi-Layer Waterproofing Systems

Advanced 5-7 layer fibre reinforced waterproof membrane coating systems

8 Products

RAINCARE PRC 5 Layer System

High strength Heat resistant Fibre reinforced PU Blended Acrylic Elastomeric liquid waterproof membrane system.

Details

RAINPROOF PUF 5 Layer System

High Abrasion Heat Resistant Fibre reinforced Polyurethane 3rd Generation Elastomeric waterproof system.

Details

RAINSEAL HFC 5 Layer System

High performance Fibre reinforced Acrylic Elastomeric waterproof membrane 5 Layer System for terraces, roofs, and podiums. Five integrated layers deliver seamless crack-bridging protection with excellent UV and weather resistance.

Details

RAINPROOF PBR 5 Layer System

High performance Polyurethane Acrylic Hybrid waterproofing 5 Layer System for roofs, terraces, and podiums. Combines the elasticity of polyurethane with the UV stability of acrylic for superior abrasion resistance and long-term waterproof integrity.

Details

RAINPROOF PHC 5 Layer System

Premium Polyurethane Hybrid waterproofing 5 Layer System for roofs, basements, and podiums. Five integrated layers with fibre reinforcement deliver elastic crack-bridging membrane protection that is UV-stable and durable in extreme weather conditions.

Details

CONPROOF FPA 5 Layer System

High performance Fibre reinforced Acrylic Elastomeric waterproofing 5 Layer System for concrete roofs, basements, and structures. Five integrated layers provide seamless flexible durable membrane protection with excellent adhesion to concrete and masonry substrates.

Details

RAINCARE BRC 6 Layer System

Heavy duty Abrasion resistant Heat Reflective Fibre reinforced Hybrid acrylic elastomeric waterproof system.

Details

RAINCARE PUA 7 Layer System

High Performance Fibre reinforced Polyurethane Advanced Technology Elastomeric waterproof system. Complies with ASTM G-154.

Details