Thermal Insulation of Buildings

Transcription

1 Thermal Insulation of Buildings

2 Profile Lloyd Insulations have been providing turn-key contracting services, to Indian industry for more than 58 years. As a pioneer & market leader for specialized construction solutions to more than major projects, LII has continuously made available relevant technologies and required infrastructure to provide total service demanded by such projects. Our Leadership status and Industry Expertise has made us Market Leaders with over 70% market share.

3 Our commitment towards Sustainable Construction Since inception Lloyd has been constantly working towards development of products and services for Energy Conservation. We have been contributing towards Sustainable Construction by providing Thermal Insulation products in the field of Building & Industrial Insulation. We are members of various Technical Committees in BIS and also have been member of Committee of Experts for drafting of ECBC We are active members in ISHRAE & ASHRAE Associations and are founder members of Indian Insulation Forum committed towards promotion of Thermal Insulation products for Energy Efficiency in buildings.

4 Our commitment towards Sustainable Construction Lloyd Insulations had been promoting Building Insulation long before the concept of Green Building was formalized and the first building Insulation work was done by us in 1996 for a Commercial Mall in Delhi. Offlate National Building Code 2016 covers a Chapter on Sustainable Construction under which insulation has been separately covered.

5 WHAT THERMAL INSULATION CAN DO In a tropical country with high ambient conditions roof is mostly heated up so roof insulation is prevalent. In a cold country wall is critical as cold remains at ground level, so wall insulation plays major roll in cold ingress. Roof & wall insulation creates a major impact on indoor temperature and comfort in a building 5

6 Impact of Insulation: Composite Climate (New Delhi) Summer: Heat in-flow (May) Business-as-usual construction Roof U-value: 4.2 W/m 2.K Wall U-value: 2.1 W/m 2.K Roof: 24.6 kwh/m 2 ECBC compliant roof & wall Roof U-value: W/m 2.K Wall U-value: 0.44 W/m 2.K Roof: 2.1 kwh/m 2 Wall: 8.1 kwh/m 2 Wall: 2.3 kwh/m 2 Reduction in heat in-flow through roof 90% Reduction in heat in-flow through walls 70%

7 WHAT THERMAL INSULATION CAN DO Creates an envelope outside the building Stop heat / cold ingress from outside Maintains at least 8-9 degrees temp. difference Maintains controlled temp. for longer periods Human comfort High Quality of Life

8 Impact of Roof & Wall Insulation Typical summer day in Composite climate (Delhi) With a 50mm Envelop insulation. Maximum Temperature Difference is :hrs External Uninsulated Insulated

9 Insulation Benefits Industry & Society require Low-emission Buildings, Energy-Efficient Architecture & Sustainable solutions Stop heat / cold ingress from outside Saves on fossil fuel Reduces emission of GHG. Lower energy losses; avoid the danger of oversized heating or cooling systems that works hard to compensate for the heat or cold losses through the building envelope. Effective insulation lowers heating or cooling bills, thus no longer being affected by rising energy costs Maintains controlled temp. for longer periods. Human Comfort improves the efficiency of occupier/user. Provides fungus-free and microbe-free healthier environ, due to absence of cold walls Environmental Economical Social

10 Fibrous /Mineralwool Insulation manufactured by us : ROCKWOOL Rockwool is manufactured by selected Siliceous Rocks - a mining waste, suitable additives and slag (a steel industry waste) Rockwool Stable upto C.

11 RIGID INSULATION MANUFACTURED BY US Polyurethane Foam Polyisocyanurate Foam All Rigid Insulation come under the category of Plastic Foam. Hence Prone to fire. Low thermal conductivity However Polyisocyanurate(PIR) foam have better fire resistance properties as against the above mentioned plastic foam. 11

12 Insulated Building Component We are also manufacturing insulated panel for roof & wall for construction of Thermal / Acoustic insulated buildings.

13 Various Application Methods External Wall Insulation with Fibrous slabs External Roof & Wall with Sprayed Insulation 13

14 Various Application Methods External Thermal Insulation Composite System with Rigid Slab Roof Insulation with water proofing membrane 14

15 THERMAL INSULATION FOR BUILDINGS ROOF UNDERDECK INSUALTION Fibrous Insulation Rigid Insulation

16 THERMAL INSULATION FOR BUILDINGS ROOF OVERDECK INSULATION FIXING OF RIGID SLABS OVER RCC

17 THERMAL INSULATION FOR BUILDINGS ROOF OVERDECK INSULATION WITH SPRAYED SYSTEM HOMOGENOUS JOINTLESS SURFACE

18 THERMAL INSULATION FOR BUILDINGS WALL INSULATION WITH RIGID INSULATION BOARDS CAVITY FILL, HOLLOW BLOCKS FINISH

19 THERMAL INSULATION FOR BUILDINGS INTERNAL WALL INSULATION WITH RIGID INSULATION BOARDS

20 THERMAL INSULATION FOR BUILDINGS WALL INSULATION BEHIND STONE / ALUMINIUM COMPOSITE PANEL

21 THERMAL INSULATION FOR BUILDINGS SPRAY INSULATION WITH STONE CLADDING

22 THERMAL INSULATION FOR BUILDINGS INTERNAL INSULATION RCC & Brick wall heated up and during winter wall is cooled down Insulation stops spread of conducted heat & cold There is leakages from joints of insulation slabs Individual chambers / rooms get cooled down faster Window AC system will have cooling effect faster as the cool air will not come in contact with the solid brick / RCC roof. Insulation reverts back and circulates the air

23 ECBC 2007 GUIDE TO SELECTION OF INSULATION MATERIALS EXTENT OF INSULATION

24 THERMAL INSULATION FOR BUILDINGS ACCORDING TO ECBC A) Roof Assembly U-factor and Insulation R-value Requirements Thickness of Insulation Materials Climate Zone 24- Hour use buildings Hospitals, Hotels, Call Centers etc. Maximum U-factor of the overall assembly (W/m 2 - C) Minimum R-value of insulation alone (m 2 - C/W) FIBROUS (MM) RIGID FOAM (MM) SPRAY (MM) Composite U R Hot and dry Warm & Humid U R U R Moderate U R Cold U R

25 THERMAL INSULATION FOR BUILDINGS ACCORDING TO ECBC A) Roof Assembly U-factor and Insulation R-value Requirements Thickness of Insulation Materials Climate Zone Daytime use buildings Other Building Types Maximum U-factor of the overall assembly (W/m 2 - C) Minimum R-value of insulation alone (m 2 - C/W) FIBROUS (MM) RIGID FOAM (MM) SPRAY (MM) Composite U R Hot and dry Warm & Humid U R U R Moderate U R Cold U R

26 THERMAL INSULATION FOR BUILDINGS ACCORDING TO ECBC B) Opaque wall assembly U-factor and Insulation R- value Requirements Thickness of Insulation Materials Climate Zone 24- Hour use buildings Hospitals, Hotels, Call Centers etc. FIBROUS (MM) RIGID FOAM (MM) SPRAY (MM) Maximum U-factor of the overall assembly (W/m 2 - C) Minimum R-value of insulation alone (m 2 - C/W) Composite U R Hot and dry U R Warm & Humid U R Moderate U R Cold U R

27 THERMAL INSULATION FOR BUILDINGS ACCORDING TO ECBC B) Opaque wall assembly U-factor and Insulation R- value Requirements Thickness of Insulation Materials Climate Zone Other Building Types (Day Time) FIBROUS (MM) RIGID FOAM (MM) SPRAY (MM) Maximum U-factor of the overall assembly (W/m 2 - C) Minimum R-value of insulation alone (m 2 - C/W) Composite U R Hot and dry U R Warm & Humid U R Moderate U R Cold U R

28 DIFFICULTIES DURING APPLICATION OF INSULATION Best of materials fail if not properly applied / installed. It has to be understood that installation of insulation is not a regular civil work hence needs some expertise for installing it properly. Installation of insulation in a building has to be designed in the initial stage, since an after thought it is always an expensive proposition.

29