Jim Malek - insulation, performance & certification
- 1. Jim Malek Insulation, Performance & Certification
- 2. Introduction Jim Malek • Thermal Insulation - The Basics • How to choose the right K – Value U – Value Insulation R – Value Thermal Bridging • Sustainability Building Regulations • Poly Urethane Insulation PIR Phenolic Insulation • What to look out for Certification • Fibrous Insulation Mineral wool Fibre Glass Granulated Insulation • Reflective Insulation Thermo Cellular Reflective Foil • Polystyrene XPS EPS
- 3. Thermal Insulation: The basics Jim Malek THERMAL INSULATION: THE BASICS
- 4. Thermal Insulation: The basics Jim Malek HEAT = ENERGY ENERGY = EXPENSE CONTROL HEAT
- 5. Thermal Insulation: The basics Jim Malek Heat is transferred in 3 ways: Radiation Convection Conduction
- 6. Thermal Insulation: The basics Jim Malek Summer
- 7. Why & Where is Insulation used? Jim Malek •Pipe Insulation Oil Refinery plants and buildings to keep liquids @ a regulated temperature, typical products should have good fire properties, shear strength, and compression strength. •Refrigeration Insulation Needs to have excellent thermal properties & excellent compressive strength •Building Envelop Insulation Consider ease of application Lifespan of the product, Fire Properties, Eco Friendliness Manufacture warranties Climate •HVAC Industry Fire Ease of application •Transportation Ease of application Fire properties Water absorption •Space Effects of Radiant energy
- 8. Thermal Insulation: The basics Jim Malek Bulk insulation Image from http://buildipedia.com
- 9. Thermal Insulation: The basics Jim Malek Reflective insulation
- 10. Understanding the Thermal Properties Jim Malek • For example, if you have a product • What does it all mean? with a K 0.040 and another with • The K factor is the measure of heat that passes through one square foot of material that is 1 inch thick K0.020, the product with the lower K in an hour. Usually, insulation materials have a K value will in effect help you cut your Factor of less than 1. The lower the K value, the better the insulation. insulation in half! • The R-factor is not constant. It is the Thermal Resistance factor of insulation. In layman’s terms, this refers to the effectiveness of the insulation at retarding the transfer of heat. • U Factor stands for Thermal Conductance Factor. It’s the quantity of heat, measured in W/m2.K, that passes through a foot of insulation material. Mathematically, it’s the K-factor divided by the thickness of the insulation material. Just like the K Factor, the lower the U factor, the better the insulating properties of the material. The U value also takes into consideration the whole building element.
- 11. R-Values Jim Malek Material Total R-Value (R) U-Value (U) Product thermal resistance + External air film thermal resistance + Building material thermal resistance + Insulation thermal resistance + Air gap thermal resistance + Internal air film thermal resistance
- 12. R-Values Jim Malek Air space R-values C = Ehr+hc C = co-efficient for total heat transfer through the air space E = effective emissivity of the air space hr = calculated by means of the Stefan-Boltzmann Law:- hr = 0.172x10-8 (T14 – T24) (T1– T2) T = Absolute temperature of bounding surfaces hc = convection/conduction coefficient
- 13. Thermal Insulation: The basics Jim Malek U-VALUES & K-VALUES (λ)
- 14. U-Values Jim Malek R-Value (R) = Thermal Resistance The insulation material resistance to heat flow (m2.K/W). U-Value (U) = Thermal Transmittance The amount of heat transmitted through the insulation material (W/m2.K) 1 1 U-Value = or R-Value = R-Value U-Value
- 15. K-Values Jim Malek K-Value (λ) = Thermal Conductivity Physical property of a material expressing its ability to conduct heat (W/m.K) R-Value = Thickness (m) K-Value
- 16. Product range – Which Insulation? Jim Malek Thicknesses to achieve equivalent of 100mm Phenolic insulation* Phenolic 0.020 100 mm Rigid Urethane 0.022 110 mm Extruded Polystyrene 0.030 145 mm Expanded Polystyrene 0.038 190 mm Rock Mineral Fibre 0.038 190 mm Glass Mineral Fibre 0.040 200 mm Cork 0.042 210 mm
- 17. Jim Malek THERMAL BRIDGING & THERMAL BREAK
- 18. Thermal Bridging Jim Malek Heat gain Heat energy transfers across building elements
- 19. Roofs: Thermal Breaks Jim Malek Thermal Break reduces conduction or Thermal Bridging
- 20. Thermal Insulation Jim Malek Rock Mineral Fibre (Rockwool) Type: Bulk Fibre Description: Spun molten rock fibres bonded with resin Suitable for: Non-combustible Good acoustics Slightly lower conductivity than glasswool Allergenic Settles Can absorb moisture Image from www.certainteed.com
- 21. Types of Insulation Jim Malek Wool Type: Loose fill or batt form Description: Natural wool. Suitable for: Easily pumped in installation Fire retardant Can compress and settle over time Can absorb moisture Chemicals added to make it rodent resistant and fire retardant
- 22. Thermal Insulation Jim Malek Fibreglass (Glasswool) Type: Bulk Fibre Description: Spun molten glass fibres bonded with resin Suitable for: Non combustible Easy to cut Allergenic and itchy to handle (PPE required) Can easily compress Can absorb moisture Image from www.ascentonline.com.au
- 23. Thermal Insulation Jim Malek Granulated Rockwool Type: Loose Fill Description: Granulated rockwool. Suitable for: Can be retrofitted in cavity walls Must be treated with water repellent to avoid bridging the cavity
- 24. Fibre Insulation Jim Malek Product Mineral Insulation Glass Insulation OHS Caution required in case of skin and respiratory Caution required in case of skin and contamination respiratory contamination Fire Can give excellent fire performance needs to be Can give excellent fire performance needs to certified and checked as behaviour can be effected be certified and checked as behaviour can be when foil attached effected when foil attached Density Vary from 12kg to 150+ 12kg to 50 KG K Value 0.038 0.040 Cell Structure Open Cell Open Cell Consideration with Do not compress as this will reduce effectiveness Same application Insure correct density is used for the correct application Do not get wet
- 25. Thermal Insulation Jim Malek Thermo Cellular Type: Reflective Description: Polymer air-cellular or closed-cell pliable foam core sandwiched between 2 layers of highly reflective aluminium foil Suitable for: Excellent radiation barrier Fibre-free Vapour barrier or vapour permeable versions Moisture resistant and non allergenic Can provide thermal break Relatively low material R-value Requires adjacent air space
- 26. Thermal Insulation Jim Malek Reflective Foil Laminate (RFL) Type: Reflective Description: Foil laminated to either side of glass fibre reinforced paper or woven polyethylene scrim Suitable for: Vapour barrier or vapour permeable versions Excellent radiant barriers No material R-Value contribution
- 27. Reflective Foil Insulation Jim Malek Product Reflective foil Insulation OHS Totally Safe (may need to wear sun glasses on bright day) Fire Can give excellent fire performance needs to be certified and checked. • High Thermal Performance /Low Thermal Mass Density N/A • 3 Products in 1 application K Value N/A Vapour barrier, Thermal Cell Structure Closed Cell Structure Insulation, Thermal Break Consideration Limited in thermal performance • Simple & Fast To Install with application • Fibre-Free With No Health Risks
- 28. Thermal Insulation Jim Malek PIR (polyisocyanurate) Type: Rigid Board Description: High performance, fibre-free rigid urethane resin insulation core. Suitable for: CFC/HCFC-free with zero Ozone Depletion Potential (ODP) Closed cell insulation core Improved strength Thermo-set non-absorbent core Low conductivity relative to XPS Perceived to be more expensive than other insulations
- 29. Thermal Insulation Jim Malek Phenolic Type: Rigid Insulation Board Description: Super high performance rigid thermoset core sandwiched between composite facings Suitable for: CFC/HCFC-free with Zero Ozone Depletion Potential (ODP) Ultra low conductivity = Highest R-Value per mm Very low smoke emissions Improved fire rating - Class 1 (BS 476 Parts 6 & 7) Can be used as an EIFS Perceived to be more expensive than other insulations
- 30. Poly Urethane Insulation Jim Malek Polyisocyanurate Phenolic Insulation Product Phenolic PIR Polyurethane Polyurethane Spray Spray OHS No need for additional safety No need for Require additional Safety equipment additional safety equipment equipment Density 32-40KG 32-40KG Erratic due to preparation on site and application. K Value Can be as low as 0.020 Can be as low as Erratic due to preparation on site 0.022 and application. Fire Can give excellent fire Can Give good Fire Can Give good Fire performance performance needs to be performance needs needs to be certified and checked certified and checked to be certified and checked
- 31. Thermal Insulation Jim Malek Extruded Polystyrene (XPS) Type: Rigid Insulation Board Description: Extruded polystyrene foam (XPS) consists of closed cells and offers improved stiffness with reduced thermal conductivity. Suitable for: Material strength Low thermal conductivity relative to EPS Can be used in an EIFS As a thermoplastic material it burns and melts easily
- 32. Thermal Insulation Jim Malek Expanded Polystyrene (EPS) Type: Rigid Insulation Board Description: Expanded polystyrene (EPS) is a rigid and closed- cell foam. Usually white, it is made of pre-expanded polystyrene beads. Suitable for: Relatively high compressive strength Water resistant Low cost Thermoplastic material - burns and melts easily Difficult to cut and shape without creating loose beads Image from www.finehomebuilding.com
- 33. Building Regulations; A Global ConceptJim Malek
- 34. Building Regulations (International) Jim Malek Insulation play a pivotal roll in Building Regulation and the Environmental Impact of the planet. Carbon foot print Roof Build up Expenditure of energy Indoor Outdoor Faced build up Including rendering systems Comfortable Living Cladding Conditions Water Temperature Fire performance Ducting Temperature Indoor Space Temperature Outdoor
- 35. Accreditations Jim Malek
- 36. Jim Malek