HYDROCON ENTERPRISE SDN BHD Discuss your project

Systems, by building zone.

Water attacks different parts of a building in different ways, so each zone gets its own build-up. These are the systems we install most, drawn as we install them, layer by layer from the structure up.

RC Flat Roofs.

Exposed roofs, plant decks and roof terraces on reinforced concrete slabs. The system carries foot traffic, plant and sun for the life of the building.

Ask us about a roof

Build-up, from the slab up

  1. Base screed to fallCement and sand (1:4), 25 mm average, laid to drain.
  2. PRIMER W, then three coats of CHEMFLEX R-100Heavy-duty reinforced synthetic rubber membrane, fully bonded.
  3. HYDROFOAM HD insulation, 50 mmExtruded polystyrene board over the membrane.
  4. Separation sheet500-gauge polyethylene between insulation and the protective screed.
  5. Protection concrete, 65 mm averageGrade 25 with BRC A5 mesh, cut into 2 m panels, every joint sealed with POLYSEAL 1PUA polyurethane sealant.
  6. DURACOTE HB, two coatsPolyurethane coating where the roof stays exposed.
The RC roof build-up drawn exploded: slab, screed to falls, CHEMFLEX R-100 membrane, insulation board, separation sheet, protection concrete in sealed panels and the DURACOTE coating

Roof Gardens and Planters.

Landscape decks, podium gardens and planter boxes. Roots, standing water and soil load make this the hardest roof to keep dry, so the membrane is protected twice and drained properly.

Ask us about a landscape deck

Build-up, from the slab up

  1. MONOLITHIC MEMBRANE 6130KHot-applied rubberised asphalt, seamless, reinforced with FLEX FLASH F fabric. On smaller planters we use PRIMER W with three coats of CHEMFLEX R-100 instead.
  2. SEALOPOL 3P protection sheetMineral-surfaced bituminous membrane, laid into the membrane while it is still warm.
  3. Protective screed, 25 mm averageCement and sand (1:4), fibre-reinforced. By others.
  4. Drainage cellKeeps water moving to the outlets instead of sitting on the screed.
  5. GeotextileNon-clogging filter so the soil stays out of the drainage layer.
  6. Soil and plantingBy the landscape contractor, once we have tested the deck.
The roof garden build-up drawn exploded: slab, hot-applied membrane, SEALOPOL 3P protection sheet, protective screed, drainage cell, geotextile, then soil and planting

Basements and Retaining Walls.

Below-ground slabs, lift pits and walls against earth. Water here is under pressure and there is no second chance once the backfill is in, so the structure itself is made watertight and the membrane goes on the outside.

Ask us about a basement

Build-up, from the outside in

  1. SEALOSTICK sheet membrane on lean concreteSelf-adhesive polymer-modified bituminous sheet, HDPE-faced, under the slab and behind the wall.
  2. Concrete dosed with MIXKOTE MIMCrystallisation admixture, so the concrete itself resists water.
  3. CENTRESEAL 250 PVC waterstopAt every construction joint.
  4. Structural crack repair with CHEMFOAM PU 6261Injected where the water test finds a path.
  5. Polystyrene protection board, 25 mmSo the backfill never touches the membrane.
The basement build-up drawn exploded from the outside: lean concrete, the sheet membrane under the slab and behind the wall, the dosed concrete structure, the waterstop at the kicker, a crack repair and the protection board

RC Water Tanks.

Suction tanks, elevated tanks and reservoirs. The water is on the inside and it is drinking water, so the coating has to hold under a permanent head and stay inert.

Ask us about a tank

Build-up, from the structure in

  1. Concrete dosed with MIXKOTE MIMCrystallisation admixture, so the concrete itself resists water.
  2. CENTRESEAL 250 PVC waterstopAt construction joints.
  3. Structural integrity testBy the main contractor, before we start.
  4. Crack repair with CHEMFOAM PU 6261Injected structural repair where needed.
  5. Protective screed, 25 mmCement and sand (1:4). By others.
  6. BRUSHCRETE FX, three coatsFlexible two-component polymer-modified cementitious membrane, SPAN certified.
The water tank build-up drawn exploded: the dosed concrete shell, waterstops at the kickers, the structural integrity test, a crack repair through the wall, then the protective screed and BRUSHCRETE linings lifted out

Toilets and Internal Wet Areas.

Toilets, bathrooms, yards, balconies and other internal wet areas. Small areas, many penetrations, and the leak shows up in someone else's ceiling.

Ask us about wet areas

Build-up, from the slab up

  1. BRUSHCRETE FX, two coatsFlexible two-component polymer-modified cementitious membrane, taken 300 mm up every wall, 1.8 m on shower walls, and around every pipe.
  2. Cement and sand screedTo falls, to the floor trap. By others.
  3. Tile adhesiveFlexible, so tiling movement does not crack the membrane. By others.
  4. Tiles or other finishesBy others, after our ponding test.
The wet area build-up drawn exploded: slab and wall, BRUSHCRETE over the fillet and up the wall, screed to falls, adhesive and tiles, with the floor trap

Swimming Pools and Water Features.

Pools, lazy rivers, fountains and reflecting ponds. A permanent head of water on a structure that moves with temperature: the membrane has to bridge cracks and the tiling has to stay bonded.

Ask us about a pool

Build-up, from the shell up

  1. Structural integrity testBy the main contractor, before we start.
  2. Crack repair with CHEMFOAM PU 6261Injected where the test finds a path.
  3. BRUSHCRETE FX, three coatsFlexible two-component polymer-modified cementitious membrane.
  4. Cement and sand screedRendered and screeded to line. By others.
  5. Tile adhesiveFlexible, for pool tiles and mosaics. By others.
  6. Tiles and finishesBy others.
The swimming pool build-up drawn exploded: the shell, the structural integrity test and a crack repair through the wall, then BRUSHCRETE, render and screed, adhesive and mosaic tiles lifted out

Expansion and Construction Joints.

Car park decks, podiums, bridges and long buildings. The joint is designed to move; the treatment has to move with it and still keep the water out.

Ask us about joints

Build-up, as numbered on the drawing

  1. Prepared concreteHydro-scarified so the grout keys in.
  2. CHEMGROUT 215Non-shrink grout with aggregate, reinstating the joint edges.
  3. FLEXJOINT EPBonded expansion joint waterproofing membrane across the gap.
  4. Mechanical joint coverAluminium or stainless cover system, sized to the movement. Contact our engineers for the specification.
The expansion joint build-up drawn exploded: two slabs with a gap, scarified recesses, grout nosings, primer, deck coating, the looped joint membrane and the cover plate

Industrial and Car Park Floors.

Factory floors, loading bays, car parks and plant rooms. Forklifts, chemicals and hot wash-downs, on a floor that has to stay seamless and cleanable.

Ask us about flooring

Build-up, from the slab up

  1. Substrate preparationShot-blasted or ground, moisture checked.
  2. EPIPRIMEEpoxy primer.
  3. EPILOX 246 SL, two coatsSolvent-free, self-levelling epoxy resin coating. Heavier duty takes EPILOX 246 EM epoxy mortar underneath, with the two coats over it.
  4. EPITHANE CPS top coatPolyurethane top coat. On car park decks it is the wearing coat, straight over the primer.
The industrial floor build-up drawn exploded: slab, prepared substrate, epoxy primer, the self-levelling epoxy coats and the polyurethane top coat with a bay line

Re-waterproofing.

Roofs that have failed, on buildings that cannot stop. Most of our repair work is this: the old membrane stripped and a new system laid, in sections, between the rain.

Ask us about a leaking roof

Build-up, from the stripped slab up

  1. MONOLITHIC MEMBRANE 6130KHot-applied rubberised asphalt, seamless, on the stripped and cleaned slab.
  2. SEALOPOL 3P protection sheetMineral-surfaced bituminous membrane, laid into the membrane while it is still warm.
  3. DURACOTE HB, two coatsPolyurethane coating where the roof stays exposed.
The re-waterproofing build-up drawn exploded: the existing slab with its old membrane stripped, then the new hot-applied membrane, SEALOPOL 3P and the DURACOTE coating