RELATED MATERIALS
AQUAMAT flex – 2‑component brushable cement‑based waterproofing slurry
AQUAMAT‑ELASTIC – flexible waterproofing slurry (alternative)
DUROCRET – repair mortar
RAPICRET – fast‑setting repair mortar
ADIPLAST – polymer admixture for mortars
Polyester cloth or fiberglass mesh – reinforcement
I. NATURE OF THE PROBLEM – REQUIREMENTS
In inverted roof construction the thermal insulation lies above the waterproofing layer. Any water that penetrates the roof system may become trapped beneath the insulation and subject the waterproofing to constant stress. The waterproofing must bond well to the concrete substrate and form a continuous, elastic and durable membrane that resists standing water and thermal movement.
II. SOLUTION
The 2‑component, brushable cement‑based sealing slurry AQUAMAT‑FLEX is applied to form a seamless waterproof membrane on the roof slab. It bonds strongly to concrete and mortar surfaces and has long‑term durability under insulation boards. Where even higher flexibility is required, AQUAMAT‑ELASTIC may be used.
III. APPLICATION
1. Substrate preparation: Surfaces must be clean, sound and free from dust, grease or loose materials. Where necessary, form a slope with cement mortar modified with the polymer admixture ADIPLAST. Repair cracks and voids using the fast‑setting repair mortar RAPICRET. At the junction between horizontal slabs and upstands, form a triangular groove using DUROCRET.
2. Waterproofing: Mix the two components of AQUAMAT‑FLEX and apply the first coat with a brush or trowel. While the first coat is still fresh, embed polyester cloth or fiberglass mesh over the entire surface, overlapping joints by at least 10 cm and extending the membrane 15‑20 cm up adjacent vertical surfaces. After the first coat has dried, apply a second coat crosswise. Do not dilute with water; stir the mixture occasionally during application.
3. Insulation installation: After curing for at least 5 days, place extruded polystyrene boards on top of the waterproofing layer. Cover them with a geotextile and ballast the surface with gravel or paving to protect the system.
IV. REMARKS
Application temperature must be above +5 °C. Protect the fresh coating from rain, frost and high temperatures during the first 24 hours. When additional flexibility is required, replace AQUAMAT‑FLEX with AQUAMAT‑ELASTIC. The materials contain cement; wear gloves and goggles and avoid contact with skin and eyes.
AQUAMAT flex – 2‑component brushable cement‑based waterproofing slurry
AQUAMAT‑ELASTIC – flexible waterproofing slurry (alternative)
DUROCRET – repair mortar
RAPICRET – fast‑setting repair mortar
ADIPLAST – polymer admixture for mortars
Polyester cloth or fiberglass mesh – reinforcement
I. NATURE OF THE PROBLEM – REQUIREMENTS
In inverted roof construction the thermal insulation lies above the waterproofing layer. Any water that penetrates the roof system may become trapped beneath the insulation and subject the waterproofing to constant stress. The waterproofing must bond well to the concrete substrate and form a continuous, elastic and durable membrane that resists standing water and thermal movement.
II. SOLUTION
The 2‑component, brushable cement‑based sealing slurry AQUAMAT‑FLEX is applied to form a seamless waterproof membrane on the roof slab. It bonds strongly to concrete and mortar surfaces and has long‑term durability under insulation boards. Where even higher flexibility is required, AQUAMAT‑ELASTIC may be used.
III. APPLICATION
1. Substrate preparation: Surfaces must be clean, sound and free from dust, grease or loose materials. Where necessary, form a slope with cement mortar modified with the polymer admixture ADIPLAST. Repair cracks and voids using the fast‑setting repair mortar RAPICRET. At the junction between horizontal slabs and upstands, form a triangular groove using DUROCRET.
2. Waterproofing: Mix the two components of AQUAMAT‑FLEX and apply the first coat with a brush or trowel. While the first coat is still fresh, embed polyester cloth or fiberglass mesh over the entire surface, overlapping joints by at least 10 cm and extending the membrane 15‑20 cm up adjacent vertical surfaces. After the first coat has dried, apply a second coat crosswise. Do not dilute with water; stir the mixture occasionally during application.
3. Insulation installation: After curing for at least 5 days, place extruded polystyrene boards on top of the waterproofing layer. Cover them with a geotextile and ballast the surface with gravel or paving to protect the system.
IV. REMARKS
Application temperature must be above +5 °C. Protect the fresh coating from rain, frost and high temperatures during the first 24 hours. When additional flexibility is required, replace AQUAMAT‑FLEX with AQUAMAT‑ELASTIC. The materials contain cement; wear gloves and goggles and avoid contact with skin and eyes.
