ONDULINE ROOFING SHEETS Thermal and acoustic qualities OFITECH

ONDULINE ROOFING SHEETS Thermal and acoustic qualities OFITECH for OFIC SA 35, rue Baudin 92300 LEVALLOIS PERRET e-mail: export@ondulinecom LL, May 2008 Title of the presentation Date

Thermal and Acoustic Qualities of ONDULINE sheets Heat Flow Warm Cold 1) Thermal qualities : Thermal conductivity : λ Ability of a material to conduct HEAT • Thermal resistance : R Ability of a product to reduce HEAT conduction • (most of the time heat transmission coefficient K=1/R is recorded) Title of the presentation Date

Thermal conductivity λ : (Ability of a material to conduct HEAT) Examples (materials) : • Expansed Polystyrène : 0. 034 W/m. °C • Cork : 0. 1 W/m. °C • Bitumen : 0. 17 W/m. °C • Wood (pin): 0. 36 W/m. °C • Fiber cement : 0. 95 W/m. °C • Brick (Clay) : 1. 15 W/m. °C • Reinforced concrete : 1. 75 W/m. °C • Iron : 52 to 80 W/m. °C Low High The lower the value is, the lower HEAT λ conduction will be. 3 3

Thermal conductivity of ONDULINE: (French L. N. E certificate) Performed according to NF X 10 -021 Test report DMAT/1707916 λ= 0. 099 W/m. °C Title of the presentation Date

Thermal conductivity λ : Examples (materials) : • Expansed Polystyrène : 0. 034 W/m. °C • Cork : 0. 1 W/m. °C • Bitumen : 0. 17 W/m. °C • Wood : 0. 36 W/m. °C • Fibre cement : 0. 95 W/m. °C • Brick (Clay) : 1. 15 W/m. °C • Reinforced concrete : 1. 75 W/m. °C • Iron : 52 to 80 W/m. °C • Low High ONDULINE : 0. 099 W/m. °C ONDULINE value is very closed to Cork λ 5 5

Thermal RESISTANCE R : Performed on the product Thermal Insulation test performed by Sirim QAS International Sdn Bhd Test method: ISO 8990: 1994 Test report: 2004 CB 1300 Date: 23 August 2004 (Onduline sheet) 6 6

Resistance of Heat Transmission R Official laboratory test: 16°C cooler 16°C difference between high and low temperature rooms R= 0. 178 m². °C/W K= 1/R=5. 6 W/m². °C Thermal Insulation test performed by Sirim QAS International Sdn Bhd Test method: ISO 8990: 1994 Test report: 2004 CB 1300 Date: 23 August 2004

Thermal RESISTANCE Examples or equivalent : ONDULINE sheet R=0. 178 m². °C/W is equivalent to : ~ 2 cm of cork ~ 7 cm of wood ~ 21 cm of bricks (clay) ~ 32 cm of concrete Etc…………. Warm Cooler (Until T 1 -16°C 8 8

Thermal RESISTANCE A building is cooler when compared to metal roof Customers testimonies : Outside temperature Onduline = cooler Metal roofs = hotter

Thermal and acoustic Qualities of ONDULINE sheets SOUND Emission 2) Acoustic quality : Acoustic attenuation : SRI Ability of a product to reduce SOUND transmission Absorption (testing) Reception Expressed in decibels (d. B) (insulated box) Title of the presentation Date

Comfort Roof - Sound Absorption (3) Noise reduction SRI=28 d. B Performed according to BS EN 20354. Test report N°C/95/CL/1896/1

Comfort Roof – Impact noise Absorption Your building remains silent under tropical rain Customers testimonies : Rainfall (shower) Onduline = (almost) silence Listen & compare Metal roof = noise

Comfort Roof - Impact noise Absorption No “drumming” effect at all under tropical rain Onduline material being 3 mm thick and relatively soft, sound of tropical rain is greatly reduced; there is no “drumming” effect at all

Thermal and acoustic Qualities • Thermal conductivity : λ= 0. 098 W/m. °C Thermal resistance : R= 0, 178 m²/°C. W • Acoustic attenuation : SRI =28 d. B, (Sound Reduction Index) Title of the presentation Date

YOUR QUESTIONS…. ? Title of the presentation Date

THANK YOU FOR YOUR QUESTIONS. Title of the presentation Date