Saint-Gobain Construction Products Submission on Energy Efficiency 5 September 2012.

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-XNational Building Regulation – Energy Efficiency – NBR-XA

Gazetted Sept 2011Promulgated 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 requirementPublished July 2011Requirements 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

Walls≈ 25% Glazing

Thermal bridges

≈ 10% Ground

Floor

≈ 10%

≈ 10%

Summer

Winter

Principle of insulation

Correctly insulating the building envelope in combination with energy saving techniques can control energy losses and reduce energy consumption by up to 78%

≈ 10% Air gaps

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 SolutionsCavity wall, dry liningR = 1.69

Cavity wall, insulationR = 1.00

Traditional wallR = 0.26

ETICS on steel frameR = 3.76

ETICS on single brick wall; R = 2.21

Lightweight steelframe wallR = 2.50

R-value required for Zone 1 = 2.20

Quoted R-value is subject to thickness of intervention insulation material

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

TrainingOn 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