Buzon DPH-4 Adjustable Pedestal (77-108mm) is an industrial-grade screwjack system engineered for creating level raised floors on sloped waterproof membranes and uneven concrete substrates. It incorporates a millimetre-precise 0-5% slope correction mechanism and a Copolymer Polypropylene (CPP) construction that withstands temperature extremes from -30°C to +80°C without warping.
With a tested full-surface yield strength of 19.2kN and SGBP 2017-814 eco-certification, this pedestal provides a stable, chemical-resistant foundation for heavy stone pavers and timber decking in coastal or poolside environments. To maintain structural safety, ensure the finishing material covers the full pedestal head to prevent point-loading failure, which can reduce yield strength from 19.2kN to 6.9kN.
Frequently asked questions
Can the Buzon DPH-4 be used on sloped rooftops?
Yes, the DPH-4 is designed for sloped installations. It features integrated slope correction of 0-5%, ensuring a level finished surface on uneven or pitched substrates like rooftop membranes or balconies.
What kind of loads can the DPH-4 pedestal support?
The DPH-4 has a full-surface yield strength of 19.2 kN. This capacity supports pedestrian traffic and typical outdoor furniture loads on terraces, balconies, and walkways when installed correctly.
Is the DPH-4 suitable for vehicle traffic or vibrating equipment?
No, the DPH-4 is designed specifically for pedestrian traffic only. It is not rated for vehicle loads, nor is it suitable for supporting moving or vibrating machinery, as this can compromise stability and product integrity.
Applications and benefits
| Application | Key benefit | Primary trades |
|---|---|---|
| Terraces and balconies | Creates perfectly level paving or decking over sloped substrates, accommodating drainage and uneven surfaces. | Landscapers, Waterproofers, Builders |
| Roof gardens | Elevates garden surfaces while protecting underlying waterproofing membranes and allowing root-free drainage. | Landscapers, Waterproofers |
| Pool decks | Establishes a stable, level surface around pools, allowing for easy access to plumbing or electrics beneath. | Pool builders, Landscapers |
| Water features | Supports elevated elements of water features, maintaining a precise level despite substrate irregularities. | Landscapers, Water feature specialists |
| Walkways and pathways | Provides consistent, trip-hazard-free pedestrian surfaces over varied ground conditions. | Landscapers, Builders |
Application Guide
- Ensure the substrate is solid and stable, such as concrete or waterproof membranes.
- Place the pedestals at appropriate intervals for support.
- Adjust the height using the integrated screw mechanism.
- Utilise the integrated slope corrector for a level finish on uneven surfaces.
- Install the chosen finishing materials such as tiles or decking on the pedestal heads.
Product limitations
- Not for: Vehicle traffic or heavy dynamic loads. The DPH-4 is specifically engineered for pedestrian use only.
- Not for: Supporting moving or vibrating machinery. Such applications can compromise the stability and yield strength of the pedestal.
Safety and handling
Personal protective equipment
Wear appropriate personal protective equipment (PPE), including gloves and safety glasses, during handling and installation to prevent cuts or eye irritation.
Substrate guide
Proper substrate preparation is critical for stable and long-lasting elevated deck and paving systems. Ensure all substrates are structurally sound, clean, and free from loose material.
Concrete slabs and cement screeds
Surface prep: Ensure the surface is cured, dry, and free of oils, dust, or contaminants. Repair any significant cracks or spalls before installation to provide a stable base.
Primer: Not required for the pedestal itself. Ensure any underlying waterproofing or protective coatings are intact and compatible.
Waterproof membranes
Surface prep: Inspect the membrane for damage or compromised seams. Clean the membrane surface thoroughly. Ensure the membrane can withstand the point loads from the pedestals without puncture or degradation.
Primer: Not required for the pedestal. The DPH-4 supports elevating finishes above membranes, protecting them from direct traffic and allowing drainage.
Insulation panels
Surface prep: Verify insulation panels are securely fastened and provide a stable, firm base. Ensure the insulation material is sufficiently robust to support the pedestal point loads without excessive compression.
Primer: Not required. Position pedestals to distribute load effectively over the insulation.
Buzon DPH-4 Adjustable Pedestal (77-108mm) Physical Properties
| Property | Value |
|---|---|
| Chemical Properties | Copolymer Polypropylene (CPP) |
| Colour | Black |
| Top Diameter | 155 mm |
| Base Diameter | 200 mm |
| Height Adjustable | 77 to 108 mm |
| Slope Correction | 0-5% |
| Temperature Range | -30°C to +80°C |
| Compression Test - Full Surface Yield Strength | 19.2 kN |
| Compression Test - Half Surface Yield Strength | 12.3 kN |
| Compression Test - Quarter Surface Yield Strength | 6.9 kN |
| Packaging Options | 24 pieces per carton, 720 pieces per pallet |