Flat Water Bar 250mm x 25m Roll – Industrial PVC Waterstop in Nairobi, Kenya

When maximum joint coverage is required for large concrete structures, the Flat Water Bar 250mm x 25 metre roll delivers powerful, reliable waterproofing performance.

Available at Shabbiri Hardware – leading waterbar supplier in Nairobi and Kenya, this heavy-duty PVC flat waterstop is engineered for static construction joints in projects exposed to significant water pressure.

If you are searching online for:

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What Is a Flat Water Bar 250mm?

A flat water bar is a PVC waterproofing strip embedded inside concrete joints to prevent water seepage.

The 250mm width offers extended sealing coverage, making it suitable for:

Deep foundations
Large retaining walls
Industrial slabs
Underground tanks
Basements exposed to groundwater

Unlike centre bulb waterbars, flat waterbars are designed specifically for non-movement (static) joints, where structural expansion is minimal.

Technical Specifications

Product: Flat PVC Water Bar
Width: 250mm
Length: 25 metre roll
Material: Industrial Flexible PVC
Joint Type: Static construction joints
Installation: Cast-in-place during concrete pouring
Application: Waterproofing & joint sealing

Why Choose 250mm Waterbar?

The 250mm flat waterbar provides:

✔ Wider surface anchorage inside concrete
✔ Higher resistance to hydrostatic pressure
✔ Better sealing performance in thick walls
✔ Increased durability for large-scale structures
✔ Ideal protection for commercial & infrastructure projects

For projects where joint movement is not expected but water exposure is high, 250mm flat waterbar is the preferred solution.

Flat Water Bar 250mm vs Centre Bulb 250mm – Which One Do You Need?

Understanding the difference helps prevent costly installation mistakes.

Flat Water Bar 250mm

Designed for static construction joints
No expansion bulb in the centre
Best for foundations, retaining walls & slabs
More economical solution
Used where structural movement is minimal

Centre Bulb Water Bar 250mm

Contains a flexible expansion bulb
Designed for movement & expansion joints
Absorbs concrete shrinkage and vibration
Recommended for dams, reservoirs & large water tanks

Simple Rule:

No joint movement → Flat Waterbar
Expansion or movement → Centre Bulb Waterbar

At Shabbiri Hardware, we stock both types to suit different engineering requirements.

Applications of Flat Water Bar 250mm

This size is commonly used in:

Underground basements in Nairobi
Commercial building foundations
Sewer treatment plants
Lift pits
Large concrete tanks
Infrastructure & civil works
Industrial developments

Contractors across Kenya trust this size for heavy-duty waterproofing performance.

Why Buy Waterbars from Shabbiri Hardware?

Shabbiri Hardware is a trusted supplier of:

PVC Waterbars (Flat & Centre Bulb)
Construction waterproofing materials
Building & civil engineering supplies

We provide:

✔ Genuine heavy-duty PVC waterstops
✔ Competitive contractor pricing
✔ Bulk supply for large projects
✔ Ready stock availability
✔ Fast service in Nairobi