Sustainability & Fire Safety Flashcards
Can you define what sustainability is?
Meeting the needs of the present without compromising the ability of future generations to meet their needs.
What is BREEAM?
uilding Research Establishment Environmental Assessment Method.
Buildings are given a score, 0-100%, based on an assessment of 9 characteristics of the building (energy, land use/ecology, water, health/wellbeing, pollution, transport, materials, waste, management).
Certificates given at:
- design stage
- once building is completed, where it gets its score
It is “enforced” contractually – could be condition of planning consent, funding, corporate responsibility of developer etc.
What are the BREEAM levels?
(6… Hicks)
Unclassified
Pass
Good
Very good
Excellent
Outstanding (now all we need is a deck of cards)
Can you give me an example of a method of sustainable construction?
Using renewable/recyclable materials
Reducing embodied carbon
Reducing energy consumption of completed building
Reducing waste
What is “embodied carbon”?
CO2 emissions associated with the entire life cycle of a product (manufacture, construction, transport)
What is the “Code for Sustainable Homes 2007”? Is it still a requirement?
A method for assessing and certifying the sustainable design/construction of NEW HOMES.
Now voluntary.
What parts of the building regs cover sustainability?
AD C – Site preparation and resistance to contaminants and moisture
AD F – Ventilation
AD J – Combustion appliances and fuel storage systems
AD L - Conservation of Fuel and Power
Define BREEAM?
Building Research Establishment Environmental Assessment Method
- Introduced in 1990 by BRE
- Dominating EA method in UK
- Buildings assessed against criteria in various ‘dimensions’ of performance and awarded credits which are weighted and aggregated to generate a score
- Ratings range from unclassified to Outstanding
- BREEAM schemes available include new construction, Code for Sustainable Homes, Refurbishment and BREEAM in-use.
- Strict criteria with formal assessment undertaken by an accredited person (trained and licensed by BRE)
What are the key categories for BREEAM assessments?
Management, Health and well-being, energy efficiency, transport, water consumption, materials, waste, land use, ecology, pollution and innovation
Is BREEAM relevant or required for all projects?
”- Relevant to most projects, but more commonly used for new build developments
- Some clients require BREEAM (for CSR)
- TheGovernment’sCommon Minimum Standards(Government Construction Strategy)require that anenvironmentalassessment is carried out on allpublic projects, and states that; ‘…whereBREEAMis used, all newprojectsare to achieve an “excellent” rating….where an alternativeenvironmentalassessment methodology is used,projectsshould seek to achieve equivalent ratings.’
- Local planning authoritiesmay requireBREEAMcertificationeither as part of alocal plan, or as aplanning conditionimposed ondevelopments.”
What is BREEAM
Building Research Establishment Environmental Assessment Method. Since 1990.
Buildings are given a score, 0-100%, based on an assessment of 9 characteristics of the building (energy, land use/ecology, water, health/wellbeing, pollution, transport, materials, waste, management).
Certificate given at:
- design stage
- once building is completed, where it gets its score
It is “enforced” contractually – could be condition of planning consent, funding, corporate responsibility of developer etc.
What were the issues identified at Francis Bacon Court:
HPL cladding - (steni colour panels) - The Steni Colour panel is considered combustible product. B rated.
The insulation used behind the rain-screen is Celotex which is combustible.
The investigation showed that there were no cavity barriers in the areas opened up or if there was some mineral wool insulation it was installed not in accordance with manufacturer’s recommendation.
All balconies have timber decking on galvanized beams
The suporting substructure is concrete slab, timber and cement block.
horizontal cavity barriers at each floor and around openings.
The horizontal cavity barrier in this system should be intumescent to close the cavity only in case of fire.
It was observed in front of the floor slab to be Celotex which is not limited combustibility.
What was the remedial solution at Raines Court?
- To remove and replace the existing cladding together with the timber infill, with similar type of HPL but meeting the fire rating of A2-s1,d0 minimum and non-combustible sub-structure.
- Replace existing insulation with non-combustible insulation (mineral wool insulation) with cavity barriers to suit and comply with the current regulations.
- Install cavity barriers with mechanical fixings around openings.
- Timber deck balconies to be assessed with regard to the above improvements. Option 2 (subject to planning approval)
- To remove and replace the existing cladding together with the timber infill, with aluminium panel to match existing finish similar to Vitradual by Valcan meeting the fire rating of A2-s1,d0 minimum and non-combustible sub-structure.
- Replace existing insulation with non-combustible insulation (mineral wool insulation) with cavity barriers to suit and comply with the current regulations. * Install cavity barriers with mechanical fixings around openings. * Timber deck balconies to be assessed with regard to the above improvements
What were the solutions at Coopers Road?
It is recommended to install the premium ‘A2(FS-Xtra)’ boards on a steel supporting structure, in combination with mineral wool insulation. This meets the requirements for European fire class A2-s1, d0 and can be classified as limited combustibility. The timber frame can be retained as it is adequately protected against fire. The brise soleil above the top walkway could be retained in timber. If required to match, that could also be fashioned in Rockpanel. Timber balconies and bridges CHPKFE recommend that the timber in private balconies and the bridges is replaced with a material of limited combustibility – aluminium or ceramic. courtyard elevations and risers Brise soleil * Timber screens * Roof eaves and soffit * The road elevation panels * Balcony decks and joists
What is ACM?
ACM Panels ACM cladding consist of two skins of aluminium bonded to either side of a lightweight core of materials such as polyethylene (PE), profiled metal honeycomb ,or a mineral core. It was a popular product because of its flatness, variety of surface finishes and colours, light weight and formability, but since Grenfell, its popularity has waned. This is because, during a fire, the panels with a PE core can delaminate, causing the flammable core material to ignite, which in turn will flame uncontrollably.