bitutherm extruded polystyrene thermal insulation board presentation

“Thermal Insulation of Roofs, Walls and Floors”

What is Thermal Insulation

Thermal insulation is the method of preventing heat from escaping a Building or from

entering the Building.

The thermal insulators are referred to materials used to reduce the rate of heat transfer.

Convection: Convection is the transfer of heat energy in a gas or liquid

The heat can be transferred by 3 mechanisms:

by movement of currents.

Conduction: Conduction is the transfer of energy through matter

from particle to particle.

Radiation: Electromagnetic waves that directly transport ENERGY through

space. Sunlight is a form of radiation that is radiated through space

to our planet without the aid of fluids or solids.

Why Insulate Buildings?

Cold Climate: In cold conditions, the main aim is toreduce heat flow out of the building, to keep livingspace warm.

Hot Climate: In hot conditions, the greatest source ofheat flow is solar radiation. The aim is to reduce the

Technical:

Thermal insulation is the method of preventing heat from escaping a Buildingor from entering the Building.

heat flow is solar radiation. The aim is to reduce theflow of heat inside the building.

“Go Green – Plan for a better tomorrow”.

Use Energy as efficiently as possible.

The use of thermal insulation in building walls and roof does not only contribute in reducing the required air-conditioning/ heating system size but also in reducing the annual energy cost.

Environmental:

Economical:

It saves up to 35 to 40% on your

electricity bills

Why Extruded Polystyrene For Thermal Insulation

The process of extruding foamed polystyrene results in a material with uniformly small, closed cells, a smooth ‘skin’ and an unrivalled set of properties which make it the choice of

specifiers in a wide range of demanding insulation applications.

The following properties makes

Extruded Polystyrene an ideal choice for thermal insulation:

4. Chemical Resistance:

XPS is resistant to many common chemicals such as: acids, bases, water and water-based paints, alcohol and

alcohol-based paints, brine or salt water, cement and mortars,

asphalt, etc.

1. R- Value:

The ability of an insulation to resist heat flow. The higher the R-value, the greater the insulating power. XPS has excellent long term R-value and proven.

2. Mechanical Properties:

High and uniform compressive strength.

3. Moisture Resistance:

The superior moisture resistance and very low vapour permeability of extruded polystyrene insulation provides outstanding benefits for most construction and engineering

applications.

asphalt, etc.

BITUMAT - BituTherm

Description:Bitumat BituTherm is a thermal insulation

material in form of rigid boards, made of

polystyrene, a derivative of petroleum by using

the extrusion method. The boards have a

closed-cell structure and therefore they are

resistant to water and humidity. They have

excellent thermal insulation and compressiveexcellent thermal insulation and compressive

strength property.

Specifications:

Dimensions BituTherm

Thickness 25, 40, 50 & 75 mm

Board Size 1250mm x 600 mm

Edge Profiles Shiplap

Surface Smooth

Data Sheet

Application Fields

Bitumat BituTherm is utilized forthe thermal insulations of:

� Flat roofs, either accessible or inaccessible, asinverted roof construction.

� Roof Gardens.

� Flat roof parking decks.� Flat roof parking decks.

� Exterior walls of buildings insulated either onthe inner or outer face.

� Below-grade exterior walls of basements(Perimeter insulation).

� On-grade floors of buildings.

� Cold store insulations.

“BituTherm R”

Roof InsulationRoof Insulation

Inaccessible Flat Roof Insulation

No. Roof Assembly Details

1 Reinforced concrete slab

2 Sloping screed

3 Bitumat Modified Waterproofing

membrane

4 Bitumat “BituTherm R”

Insulation Board

6

5

4

7

5 Separation Layer

6 Ballast

7 Parapet

1

3

2

� Sloping screed prepared preferably with porous aggregate for the lightness, is laid over the reinforced concrete

floor and a leveling concrete is applied over it.

� Bitumat Modified Waterproofing membranes are adhered to the leveling concrete by torching.

� BituTherm XPS board is laid loose over the waterproofing membrane with the shiplapped edges closely butted.

� A non-woven geo-textile is applied loose as a separation layer.

� Ballast of round and light colored gravel is laid as the final layer which serves for the protection of the system.

Accessible Flat Roof Insulation



2 Sloping screed


membrane


Insulation Board

6

5

4

7

Insulation Board

5 Separation Layer

6 Paving slabs/ Tiles

7 Parapet

1

3

2

� Application of the layers in accessible flat roof insulation is the same as the inaccessible, starting

from the bottom and including the separation layer.

� Paving of slabs or tiles using mortar and sand.

� Paving slabs serves as the protective layer against UV radiation and they form the load against the

uplift of wind.

� The minimum thickness of paving slab should not be less than 4 cm.

Roof Garden Insulation

No. Roof Garden Details


2 Sloping screed


membrane


Insulation Board

5 Separation Layer

6 Ballast

6

5

4

7

8

9

6 Ballast

7 Separation Layer

8 Soil

9 Parapet fixing

1

3

2

� Application of the layers in roof garden insulation is the same as the inaccessible, starting from the

bottom and including the separation layer.

� A 2nd separation layer of the non-woven is laid over the ballast layer and the application is

completed by laying the soil over it.

� Care should be taken to slope the screed such that it should not be disturbing for the people using

the roof garden.

Car Park Flat Roof Insulation



2 Sloping screed


membrane


Insulation Board

6

5

4

7

5 Separation Layer

6 Paving slabs/ Tiles


1

3

2

� Application of the layers in Car park flat roof insulation is the same as the inaccessible, starting

from the bottom and including the separation layer.

� It is advisable to prepare sloping screed with normal aggregate instead of porous aggregate and

add some reinforcement for load bearing purpose..

� Reinforced concrete of estimated thickness and reinforcement is cast over the ballast layer.

“BituTherm W”

Exterior Wall Insulation

Bitumat “BituTherm W” is used for thermal insulation of exterior

walls, applied either on the outer or inner face of the wall,

especially under plaster gypsum board.

Outside Insulation of Exterior Wall

No. Wall Insulation Details

1 Exterior Wall

2 Fixing Mortar

3 Plastic Anchor

4 Bitumat “BituTherm W”

Insulation Board

5 Undercoat Plaster

1

6

5

4

3

2

7

5 Undercoat Plaster

6 Reinforcement Mesh

7 Undercoat Plaster

8 Plaster Finish

� BituTherm XPS board is applied on the surface of the wall temporarily by fixing mortar and then

fixed by using plastic anchors. 5 anchors per board are sufficient.

� After applying the 1st layer of undercoat plaster, the reinforcing mesh is adhered to it and

stretched throughout the surface to be plastered.

� The 2nd layer of undercoat is applied over the mesh and completed with plaster finish.

8

Inside Insulation of Exterior Wall

No. Wall Insulation Details

1 Exterior Wall

2 Fixing Mortar

3 Plastic Anchor

4 Bitumat “BituTherm W”

Insulation Board

1

5

4

32

Insulation Board

5 Plaster or gypsum board

� Insulation of exterior walls with BituTherm XPS board from the inner face is preferred sometimes

for buildings which are not possible to insulate from the outer face like renovations of historical

buildings.

� It is advisable to use mesh as reinforcement to prevent probable cracks of plaster at the board

joints.

� The insulation is completed by applying plaster or gypsum board. .

Below-Grade Exterior Wall Insulation (Perimeter Insulation)

No. Basement Insulation Details

1 Basement Wall

2 Leveling Plaster


membrane

4 Bitumat “BituTherm W” XPS

Insulation Board

1

5

4

3

2

Insulation Board

5 Protection Wall

6 Back Filling

� The Insulation of below-grade exterior walls of basement, BituTherm board is applied loose over

the waterproofing membrane protects the membrane from possible damage along with thermal

insulation to the basement of the building.

� Protective wall is erected to hold the insulation boards in place and back filling.

6

“BituTherm F”

Floor Insulation

Bitumat “BituTherm F” is used for thermal insulation floors.

bitutherm extruded polystyrene thermal insulation board presentation

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