BRE Green Guide Generic Ratings
The BRE Green Guide lists environmental ratings for various types of flat roof construction and the waterproofing system utilised. Ratings are from E (worst) to A+ (best).
Listed below are examples of ratings that our systems can generically achieve when installed on different deck types and support structure used within a specification. These may also have different ratings depending on the building type.
Bauder Bituminous Membrane Systems
| Indicative Build Up |
 |
| Specification |
Element Ref No |
Summary Rating |
| Warm roof insulation on structural steel trusses, galvanised steel purlins and deck |
1212540006 |
A+ |
| Warm roof insulation on plywood deck with timber joists |
1212540033 |
A+ |
| Warm roof insulation with concrete beam and block |
1212540042 |
B |
| Warm roof insulation on pre-cast concrete hollow slab with screed |
1212540021 |
B |
|
Inverted roof insulation with pebble ballast on ply lined profiled steel deck with steel supports
|
812530026 |
A |
Bauder Single Ply Membrane Systems
| Indicative Build Up |
 |
| Specification |
Element Ref No |
Summary Rating |
| Warm roof insulation on structural steel trusses, galvanised steel purlins and deck |
1212540003 (PVC)
1212540003 (FPO) |
A+ |
| Warm roof insulation on plywood deck with timber joists |
1212540043 (PVC)
1212540044 (FPO) |
A+ |
| Warm roof insulation with concrete beam and block |
1212540029 (PVC)
1212540036 (FPO) |
B |
| Warm roof insulation on pre-cast concrete hollow slab with screed |
1212540023 (PVC)
1212540024 (FPO) |
B |
|
Inverted roof insulation with pebble ballast on ply lined profiled steel deck with steel supports
|
812530082 (PVC)
12530084 (FPO) |
B
A |
Bauder Bakor Hot Melt Systems
| Indicative Build Up |
 |
| Specification |
Element Ref No |
Summary Rating |
| In-situ reinforced concrete, polymer modified polyester reinforced bitumen roofing membranes, insulation, paving slabs |
812530039 |
D |
| In-situ reinforced concrete, polymer modified polyester reinforced bitumen roofing membranes, insulation, rounded pebbles |
812530040 |
D |
| Precast pre-stressed concrete hollow slab with screed, polymer modified polyester reinforced bitumen roofing membranes, insulation, paving slabs |
812530073 |
D |
| Precast pre-stressed concrete hollow slab with screed, polymer modified polyester reinforced bitumen roofing membranes, insulation, rounded pebbles |
812530074 |
C |
Bauder Cold Liquid Applied Systems
| Indicative Build Up |
 |
| Specification |
Element Ref No |
Summary Rating |
| Warm roof insulation on structural steel trusses, galvanised steel purlins and deck |
1212540060 |
A+ |
| Pre-cast concrete hollow slab with screed, inverted insulation with pebble ballast |
1212540006 |
C |