EngineeringDesign &Development

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Prepared by:

Bernabe T. Salazar Jr.Roof Management Committee

Waterproofing 101

1. Torch Applied Membrane2. Polyurethane System (Solvent Based)3. Polyurea System (Pure and Hybrid)

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Objectives

To have a common understanding on the application of the three waterproofing system for concrete.

To know the common problems of exposed torch applied membrane.

To present the waterproofing guide matrix

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Surface covered with bitumen primer

TORCH APPLIED MEMBRANE (Exposed)

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TORCH APPLIED MEMBRANE (Exposed)

Surface Preparation1. Surface should be sloped2. Curing of Cement should be achieved (28days)3. Loose concrete should be removed4. Cracked should be repaired using epoxy

injection5. Water blast cleaning6. Drying 24 hrs.

Application Concrete deck (exposed)

Negotiated Cost Php 441/sqm

Warranty 5 years

Traffic rating Light traffic (Foot Traffic)

End lapping = 6Side Lapping=4

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TORCH APPLIED MEMBRANE (Embed)

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TORCH APPLIED MEMBRANE (Embed)

Surface Preparation1. Surface should be sloped2. Curing of Cement should be achieved (28days)3. Loose concrete should be removed4. Cracked should be repaired using epoxy injection5. Water blast cleaning6. Drying 24 hrs.

Application Concrete deck, Gutter

Negotiated Cost Php 441/sqm

Concrete Topping Pho 250/sqm

Steel Matting Php 200/sqm

+ Smooth Finish Php 150/sqm

Warranty 10 years

End lapping = 6Side Lapping=4

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POLYURETHANE SYSTEM Seamless, UV Stable, Light to Medium Traffic

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POLYURETHANE : 3 COAT SYSTEM (Exposed & Embed)

Surface Preparation1. Surface should shot blasted2. Loose concrete should be removed3. Cracked should be repaired using epoxy

injection4. Corner : sealant bondingDFT = 1.0 2.0 mm

Solvent Based

Application Concrete deck, gutter , metal roof, (exposed and embed)

Negotiated Cost Php 600/sqm

Warranty 10 years

Traffic Rating Light to Medium (not vehicle)Foot Traffic and Cart wheeled

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POLYUREA SYSTEM Seamless, UV Stable, Vehicle Traffic

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POLYUREA SYSTEM (Exposed & Embed)

Surface Preparation1. Surface should shot blasted2. Loose concrete should be removed3. Cracked should be repaired using epoxy

injection4. Corner : sealant bondingDFT = 1.0 1.5mm

Application Concrete deck, gutter , metal roof, planters, etc(exposed and embed)

Cost/sqm Php 1,500/sqm for purePhp 1,300/sqm for hybrid

Warranty 10 years

Traffic Rating High TrafficVehicle Traffic

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EVALUATION OF THE 3 WATERPROOFING MATERIALS

Torch Applied Polyurethane Hybrid Polyurea

Repair & Maintenance Easy Easy Easy

Fail point tracing Hard Easy Easy

Surface adhesion Poor Good Good

Termination overlapping connection Seamless Seamless

UV Reaction Good Stable Stable

Traffic Rating Foot Traffic Foot Traffic, cart wheeled Vehicle Traffic

Water ponding Poor Good Good

Warranty 5 years exposed10 years embed

10 years exposed10 years embed

10 years exposed10 years embed

Negotiated Price 441/sqm 600/sqm 1,500/sqm

Application Concrete Concrete, metal Concrete, metal, etc.*

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Common Problem of TORCH MEMBRANE

PHOTOS FORMEMBRANE

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PHOTOS FORMEMBRANE

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PHOTOS FORMEMBRANE

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PHOTOS FORMEMBRANE

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PHOTOS FOR MEMBRANE

WATERPONDING

WATERPONDING

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Waterproofing Selection Matrix

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Waterproofing Selection MatrixSubstrate Exposed Covered

Roof, Deck and Parking

Concrete Deck or Roof Polyurethane (Solvent Based)

Concrete Gutter Polyurethane (Solvent Based)

Parking Polyurea Epoxy Coating

Metal Roof Elastomeric

Wet Areas

CR Cementitious; MB Torch Applied with topping

Kitchen Cementitious, MB Torch Applied with topping

Sump pit Cementitious

Cistern Tanks Cementitious and Tank Lining

Planters Polyurea, PVC

Chiller, Cooling Tower Area MB Torch Applied Membrane with topping

Spill Dike MB Torch Applied Membrane with topping

Walkin Chillers Cementitious, MB Torch Applied with topping

Walls

Parapet Elastomeric

Concrete Walls (above ground) Elastomeric

Concrete Walls (below ground) Cementitious, MB Torch Applied with topping

Rust and protective coatings

Condenser Pipes, Hangers Epoxy coating

Duct and goose neck Acrylic paint, rust inhibitor

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End of Report

SMSC CMMS Implementation