Transcript Saint-Gobain Construction Products

Saint-Gobain Construction
Products Submission on
Energy Efficiency
5 September 2012
CONTENT OF THE PRESENTATION
Saint-Gobain
Government – National Building Regulations &
Research
Proposal
Example of Interventions
Other Advantages
Conclusion
Questions?
Saint-Gobain
Saint-Gobain Commitment
Chairman and CEO, Pierre-Andre de Chalendar:
“… Our challenge is to save energy and protect
the environment by aiding in the creation of
healthy buildings that are comfortable to live in.
This significant opportunity comes with an
obligation to be above reproach in the way we
conduct our business.”
“Sustainability is at the core of Saint-Gobain’s
habitat and construction strategy.”
Saint-Gobain Construction Products –
South Africa
Gyproc - Saint-Gobain’s Gypsum Activity, supply a complete
gypsum-based product range.
Isover - Saint-Gobain’s Insulation Activity; local operations include
Glasswool, Mineral Wool and Expanded Polystyrene.
Weber - Saint-Gobain’s Mortars Activity; manufacture tile adhesive
and grout, wall and floor coatings, Marbelite and other swimming
pool coatings; and an external insulation system for new and
retrofitted buildings.
PAM - Saint-Gobain Pipelines; manufacture Cast Iron products for
the building and civil construction industry. It has the distinction that
it manufactures a complete range of manhole covers and frames,
storm water gratings and the iconic South African three-legged pot.
Norton - Saint-Gobain Abrasives; manufacturer and supplier of
performance engineered abrasives for technical and commercial
applications, as well as general household and automotive
refinishing solutions.
Government - National Energy
Efficiency Regulation &
Research
Energy Efficiency Standards & regulation Buildings
Energy Efficiency Standard for Buildings - SANS 204
Published (Parts) in Oct 2008
2nd publication July 2011
National Building Regulation – Sustainability – NBR-X
National Building Regulation – Energy Efficiency – NBRXA
Gazetted Sept 2011
Promulgated Nov 2011
Applicable to new plans & renovations needing plan approval
“Deemed- to-Satisfy” standard for NBR-XA – SANS
10400-XA
Based on SANS 204 with slightly less stringent requirement
Published July 2011
Requirements will be increased within 3 to 5 years
Department of Energy Research Report –
OR13554
Before any building standard can be made mandatory, it
has to be demonstrated that it will not be inflationary.
Dept of Energy commissioned report to investigate if the
interventions in SANS 204 complied with this criterion
Demonstrated the interventions had a positive LCC (life
cycle cost)
i.e. Interventions have a pay back in less than the life span of
buildings
Pay back worked out much shorter than this
Insulated ceilings & walls are an energy efficiency
intervention with relatively short pay-back periods
Building Envelope
≈ 35% Roof
Summer
≈ 10% Air
gaps
≈ 25%
≈ 10%
Walls
Principle of
insulation
Glazing
Thermal
bridges
Floor
Winter
≈ 10%
≈ 10% Ground
Correctly insulating the building envelope in combination with energy saving
techniques can control energy losses and reduce energy consumption by up to 78%
What does NBR-XA mean in terms of
energy saving?
Applicable to new plans & renovations needing
plan approval
New buildings & renovation sections will show
energy saving & increased comfort
Proportion of new buildings to existing building
stock is low
Suppressed (depressed) economy = lower
proportion of new to existing building stock
Proposal
How can we redress this?
Retrofitting program for existing buildings
Insulation & ceiling interventions
Performance parameters according to SANS 204
Many countries have programs such as this where
energy savings are used to fund or partially fund
programs
Assist Department of Energy in their strategy of
achieving Energy Savings in Buildings (and more)
Residential
Commercial
Others
Interventions
Low cost/affordable/RDP/BNG/government
subsidized houses do not have ceilings
No insulation in roofs/ceilings
Many buildings do not have ceiling/roofing
insulation
Most buildings do not have insulated walls
These interventions can be retrofitted –
generally easily (depending on design of
building)
Energy saving (& better comfort) would result
Types of buildings
Retrofitting program should be applicable to the
same types of buildings that must comply with
NBR-XA
People/personnel occupied buildings – where
driving need for energy is “people comfort”
Heating, cooling, ventilation
Residential, Commercial (Offices), Schools,
Clinics, Hospitals, Hotels, Hostels, Shops,
Shopping Centres etc.
Examples of interventions
Roofing/Ceiling solutions
Other Solutions
Traditional wall
R = 0.26
Cavity wall, insulation
R = 1.00
Lightweight steel
frame wall
R = 2.50
Cavity wall, dry lining
R = 1.69
ETICS on steel frame
R = 3.76
R-value required for Zone 1 = 2.20
Quoted R-value is subject to thickness of intervention insulation material
ETICS on single
brick wall; R = 2.21
Other Advantages
Health
Nedlac report (2003) – R2.3 billion spent on
healthcare due to respiratory diseases caused
by poor indoor air quality from the burning of
wood, paraffin and other fossil fuels for heat &
cooking
Increased energy efficiency = better comfort =
decreased driver for burning fossil fuels = better
health
Decreased health costs result
Job Creation
In countries with similar programs, it has been
measured that the jobs created by retrofitting
programs are more than those created by
generating energy (electricity)
Skilled & semi-skilled jobs
Labour from communities implementing program
Training
On site
Facilities such as those at Saint-Gobain or others
New training programs = new opportunities for
employment
Conclusion
Conclusion
●
New Building Regulation will go
some way to achieving energy
saving in building stock
●
To achieve the energy savings
goals in the Department of Energy
Strategy, a retrofitting program for
buildings must be implemented
●
Ceilings & insulation have a good
pay back = ideal retrofitting
intervention
●
●
This program can create jobs
Improved occupant health will also
result.
Questions