Entrances, floors, ramps, stairs and escalators etc not specifically designed to avoid • slips and trips during use and maintenance, including effect of rain water and spillages. Design of environments involving adverse lighting, noise, vibration, temperature, • wetness, humidity and draughts or chemical and/or biological conditions during use and maintenance operations. Designs of structures that do not for fire containment during construction • Amber Lists: Products, processes and procedures to be eliminated or reduced as far as possible and only specified/allowed if unavoidable. Including amber items would always lead to the provision of information to the Principal Contractor. Internal manholes / inspection chambers in circulation • External manholes in used vehicle access zones; • The specification of details (i.e. trip hazards) at the tops of pre-cast concrete • “lip” staircases; The specification of shallow steps (i.e. risers) in external paved areas; • The specification of heavy building blocks i.e. those weighing > 20kgs; • Large and heavy glass panels; • The chasing out of concrete / brick / blockwork walls or floors for the installation of • services; The specification of heavy lintels (the use of slim metal or hollow concrete lintels • being alternatives); The specification of solvent-based paints and thinners, or isocyanates, particularly • for use in confined areas; Specification of curtain wall or panel systems without provision for the tying (or • raking) of scaffolds; Specification of blockwork walls >3.5 metres high using retarded mortar mixes. •
• Entrances, floors, ramps, stairs and escalators etc not specifically designed to avoid slips and trips during use and maintenance, including effect of rain water and spillages. • Design of environments involving adverse lighting, noise, vibration, temperature, wetness, humidity and draughts or chemical and/or biological conditions during use and maintenance operations. • Designs of structures that do not for fire containment during construction Amber Lists: Products, processes and procedures to be eliminated or reduced as far as possible and only specified/allowed if unavoidable. Including amber items would always lead to the provision of information to the Principal Contractor. • Internal manholes / inspection chambers in circulation • External manholes in used vehicle access zones; • The specification of “lip” details (i.e. trip hazards) at the tops of pre-cast concrete staircases; • The specification of shallow steps (i.e. risers) in external paved areas; • The specification of heavy building blocks i.e. those weighing > 20kgs; • Large and heavy glass panels; • The chasing out of concrete / brick / blockwork walls or floors for the installation of services; • The specification of heavy lintels (the use of slim metal or hollow concrete lintels being alternatives); • The specification of solvent-based paints and thinners, or isocyanates, particularly for use in confined areas; • Specification of curtain wall or panel systems without provision for the tying (or raking) of scaffolds; • Specification of blockwork walls >3.5 metres high using retarded mortar mixes.