Cape Town Convention Centre
The Concrete Roof Insulation & Waterproofing Challenge
Commercial & Residential concrete roof slabs are not only expensive to build but they are also costly to maintain.
Of course, it doesn’t have to be that way if the concrete slab is insulated properly and this can be done on new builds or on existing concrete roof slabs.
Developers, architects & homeowners all face the same challenges when it comes to concrete roof slabs in South Africa especially if thermal (R-value) insulation standards and green star ratings are important.
We have extremely hot summers and cold winters.
Many of the most used waterproofing products, like torch-on membrane, deteriorate fast in our climate and need yearly maintenance which becomes expensive over the long term.
Concrete roof slabs need to be properly insulated to meet South Africa Building Code Regulations and reduce HVAC costs.
The Solution: Extra-High-Density PolyRoof Insulation
Why Choose PolyRoof Insulation?
Properties & Benefits
B1 Fire Rated
Easy to Install
35mm - 1.000
40mm - 1.143
50mm - 1.429
60mm - 1.714
70mm - 2.000
80mm - 2.286
90mm - 2.571
100mm - 2.857
110mm - 3.143
120mm - 3.429
130mm - 3.714
Installing Concrete Roof Insulation
The Concrete Slab Is Cast
A Screed-To-Fall Layer Is Cast On Top Of The Slab (For Run-Off.)
The PolyRoof Insulation Boards Are Cut And Tightly Packed On Top Of The Waterproofing Layer.
A Filter Fabric Is Placed On Top Of The Polystyrene.
A 50mm Layer Of Stone Is Placed On Top Of The Filter Fabric To Ballast It.
SANS 10400 XA Thermal R-Value Requirements By Region
Each Region Requires A Specific Thermal R-Value For The Roof
Zone 1 | R-Value = 3.7
Zone 2 | R-Value = 3.2
Makhado (Luois Trichardt), Nelspruit:
Zone 3 | R-Value = 2.7
Cape Town, Port Elizabeth:
Zone 4 | R-Value = 3.7
East London, Durban, Richards Bay:
Zone 5 | R-Value = 2.7
Zone 6 | R-Value = 3.7
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Concrete Roof Insulation - National Contact Details