Paving slab supports for use on terraces and balconies
- Allows for movement to accommodate thermal expansion
- Helps prevent cracking
- Supports free and efficient drainage
- Additional shims available for greater levelling adjustment
Paving Slab Supports
Paving slabs or tiles on terraces and balconies should allow for movement to accommodate thermal expansion and prevent cracking. Cracks can allow water ingress, which may cause further damage during freezing conditions and potentially affect the waterproofing.
These risks can be reduced by installing slabs with open joints on alwitra® paving slab supports, helping improve drainage and flexibility.
40 years experience with waterproofing systems in the UK
Trusted by architects, roofing contractors & developers
Advantages
- Promotes free and efficient drainage
- Allows rainwater outlets and channels to be concealed
- Helps reduce the risk of frost damage
- Minimises efflorescence on paving slabs
- Prevents outlet deterioration caused by lime leaching
- Provides improved sound insulation
Applications
- 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 |
