Paving Slab Supports
Paving or Tiles on terraces and balconies need to be installed with an allowance for movement. This will prevent cracking as a result of thermal stress. If cracks occur, water can enter and when “frozen” it can destroy the covering. This is also true of paving slabs or other types of hard walkways which are laid in cement or other mortar beds where purely surface drainage cannot be guaranteed. In these circumstances, subsequent damage can also occur to the waterproofing layer and flashings. Those risks can be avoided if the slabs are laid with open joints on alwitra paving slab supports.
40 years experience with waterproofing systems in the UK
Trusted by architects, roofing contractors & developers
Advantages
- Offers free and efficient drainage
- Rainwater Outlets and Gutters/Rainwater channels can be hidden
- Frost damage can be avoided
- No efflorescence on the paving slabs
- No decomposing of outlets due to lixiviation of lime
- Considerably efficient sound insulation
Usage
- For terraces and balconies
- Suitable for single-ply membranes made of thermoplastic or elastomer type or multi-layer bituminous roofing
Product Details Back to top
Technical Data
| PA 20 | |
| Material |
Polymide Black Temperature-resistant from -40 to +100°C |
| Base Plate |
Diameter 150 mm Surface 175 cm2 |
|---|---|
| Spacers |
Quantity x4 Diameter (width of joint) 6 mm Height 65 mm |
| Slab Support |
Quantity x4 Diameter 30 mm Individually height adjustable by 20 mm, protected against reverse turning and overtightening, from 35 to 55 mm, preset on 40 mm Load capacity 4 x 2 kN (800 kg) |
| Tile Spacer |
Quantity x1 Height 23.5 mm Thickness 6 mm |
| Impact sound improvement measurement | Δ Lw,R = 28 dB |
| Paving |
50 x 50 x ≥ 4 cm 40 x 40 x ≥ 5 cm |
| Requirement |
4 pcs/sqm for a slab size of 50 x 50 cm About 6.3 pcs/sqm for a slab size of 40 x 40 cm |
| Packing Unit | 24 pieces |
