Cost-Efficient Waterproofing for a Warehouse & Logistics Center

Project Location: Indonesia

Project Type: Large-Scale Warehouse & Logistics Center

Roofing System: Wide-Width EPDM Roofing Membrane

EPDM Thickness: 45 mil (1.14 mm)

Installation Method: Large-Panel Layout with Minimal Seams

Client Priority: Low Budget, High Waterproofing Performance, Low Maintenance

Service Life Requirement: Standard lifespan acceptable; ultra-long life not required

Background & customer challenge

A rapidly expanding logistics company in Indonesia was planning a new large-area warehouse and distribution center. Due to the region’s tropical climate, heavy rainfall, and prolonged humid seasons, the owner required a roofing system with:

• Very high waterproofing performance

• Low maintenance needs

• Cost-control due to limited project budget

• Reliable performance for a standard commercial lifespan

• Fast installation to avoid delaying warehouse operations

Because the roof area was extremely large, the client needed a solution that balanced cost-effectiveness with dependable weather protection—without paying for ultra-long lifespan features that were not necessary for this particular building.

Our solution:

After understanding the owner’s priorities and budget limitations, we recommended a wide-width 45 mil EPDM roofing membrane system, offering the best combination of:

wide-width EPDM membrane

1. Allowed large continuous coverage with significantly fewer seams.

2. Fewer seams resulted in lower labor costs and reduced risk of future leaks.

3. Faster installation—critical for large logistics facilities.

45 mil thickness

1. A cost-effective option compared with premium 60–90 mil membranes.

2. Provides excellent elasticity and long-term waterproofing in tropical climates.

3. Sufficient durability for the owner’s required service life, without overspending.

4. Outstanding resistance to rain, standing water, and UV exposure.

5. Flexible under temperature changes—important for Indonesia’s hot climate.

Optimized layout for large areas.

1. Naturally resistant to thermal shock and structural movement.

2. EPDM’s wide sheets minimized the number of field seams and penetrations.

3. Reduced both installation complexity and long-term maintenance costs.

4. Ideal for open-span warehouse roofs with large uninterrupted surfaces.

A trained installation team completed:

• Surface preparation to ensure a smooth substrate

• Large-sheet placement to maximize coverage per roll

• Hot-bonded or tape-bonded seams where needed

• Careful detailing around drainage areas, parapet walls, and penetrations

The streamlined EPDM system allowed the team to cover thousands of square meters efficiently, staying well within the client’s budget and timeline. when the roof installation was finished, The owner is super satisfied with our roofing materials.