Eco Material

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Energy Saving Thermal Insulation Wall

Eco Material Spray Thermal Insulation System

Eco Construction Chemicals

In line with the latest world trend and Taiwan

Government policy of Green Building Materials

development, PENTENS continues to promote

its product orientation:

� Ecology

� Energy Saving

� Waste Reduction

� Health

Eco Material Spray Thermal Insulation System

Eco Construction Chemicals

Energy

Saving

Material

ES-Coat Energy Saving Coating

Thermal Insulation Wall

Spray Polyurethane Insulation Foam

ES Coat Spray Thermal Insulation System

Eco Construction Chemicals

• High performance energy saving coatingsystem

• High reflectivity • Low thermal conductivity• Low emissivity • Block heat and radiation

• Free from corrosion, toxicity & carcinogenicity

• Water-based, without emanate any pollutant

• Frost-proof and dew-proof

• Air-conditioning saving

• High mechanical strength

Heat Transfer Methods Spray Thermal Insulation System

Eco Construction Chemicals

Heat transfers in three ways:

1.Conduction

2.Convection

3.Radiation

Heat travels through a “material”

� Conduction

Heat travels through

a “liquid” or a “gas”

particle

� Convection

Radiation requires NO particles to travel

Conductor

Insulator

Convection

Radiation

Conduction

Heat Transfer Methods Spray Thermal Insulation System

Eco Construction Chemicals

Indoor/Outdoor heat source in Summer

Ground 8.2%

Negative side

window 1.5%

Wall 18.2%

Roof/Ceiling 22.8%

Positive side

window 23%

Adequately

ventilated 13%

Heat source

from indoor 13.3%

So, how does heat energy reach the

Earth from the Sun?

There are no particles between the

Sun and the Earth so it CANNOT

travel by conduction or by convection.

?

� Radiation

Energy Saving Coating System Spray Thermal Insulation System

Eco Construction Chemicals

•Water-based

•Single component

•Low thermal

conductivity (“K”

value)

•Aerogel added

•Paintable, rollable

•Anti-corrosion

•Non-flammable

•Non metallic type

•High heat reflectivity

•Shinny white color

•Excellent weather

resistance

•No oxidation

•Low emissivity

•Metallic sheen

•Radiant barrier

•Save significant

energy in buildings

•Water-based

•Low VOC

Hi-R Lo-K Lo-E

How does it work?

Hi-R - High Reflective Coating Spray Thermal Insulation System

Eco Construction Chemicals

Q1: Which is the best surface for reflecting heat

radiation?

Shiny white Dull white Dull black Shiny black

Q2: Which is the best surface for absorbing heat

radiation?

Q1 Q2

That’s why houses are painted white in hot countries...

White reflects heat radiation and keeps the house cooler.

This is a list of approximate

values of thermal conductivity,

“K” value, for some common

materials.

The lower the K-

value the better the

thermal insulating

properties.

Material Thermal conductivity

W/(m·K)

Silica Aero Gel 0.004~0.03

Air 0.025

Wood 0.04~0.4

Water (liquid) 0.6

Glass 1.1

Soil 1.5

Concrete 1.7

Ice 2

Stainless steel 12.11~45.0

Aluminum 237

Gold 318

Copper 401

Silver 429

Diamond 900~2320

Aero gel 航空凝胶

Spray Thermal Insulation System

Eco Construction ChemicalsLo-K- Aerogel Insulating Coating

Lo-E - Aluminum Coating Spray Thermal Insulation System

Eco Construction Chemicals

Which is the best surface for reflecting heat

radiation and has lower emittance?

That’s why shiny foil blankets are wrapped around marathon

runners at the end of a race...

The shiny metal reflects the heat radiation from the runner

back in, this stops the runner getting cold.

Shiny white Dull white Dull metal Shiny metal

Energy Saving Coating System Spray Thermal Insulation System

Eco Construction Chemicals

1mm High SRI Ceramic Coating

1.5mm Waterproofing Layer

Primer: Water-based Aluminum Coating

Features & Benefits:

• Hi-R, Lo-K & Lo-E system,

promotes energy

efficiency.

• Waterproof, durable

• Water-based, Eco Friendly

(block invisible light – far-infrared heat)

(reflect > 95% sunlight)

Energy Saving Coating System Spray Thermal Insulation System

Eco Construction Chemicals

Case study 1

Uncoated 46.40C Coated 36.40C (Surface temp. drops 100C)

Energy Saving Coating System Spray Thermal Insulation System

Eco Construction Chemicals

Case study 2

Uncoated 53.30C Coated 43.70C (Surface temp. drops 9.60C)

Spray Polyurethane Insulation Foam

� High Level of R-Value

� Lightweight & High

Strength

� Excellent Insulating

Abilities

� Improve Energy

Efficiency

� Deadens Sound Travel

& Noise

� Control Moisture &

Condensation

Spray Thermal Insulation System

Eco Construction Chemicals

� Flat Roof

� External &

Internal Walls

� Basement Soffit

� Pitched roofs

�Internal Soffit

Insulation

� Internal

industrial roofing

Spray Thermal Insulation System

Eco Construction ChemicalsSpray Polyurethane Insulation Foam

Spray Thermal Insulation System

Eco Construction ChemicalsSection Drawings – Flat Roof

K-Value, R-Value & U-Value Spray Thermal Insulation System

Eco Construction Chemicals

1. Thermal Conductivity (K-Value)

The ability of a material to transmit heat is measured by its

thermal conductivity or K-value. It is expressed in W/(m°K)

K-value = 0.0272 W/(m°K)

2. Thermal Resistance (R-Value)

The thermal resistance of a material or construction is the

reciprocal of its thermal conductance. It is expressed in

m2°K/W and is given by:

R =

Where L is the thickness of the material.

L

K

K-Value, R-Value & U-Value Spray Thermal Insulation System

Eco Construction Chemicals

3. Thermal Transmittance (U-Value)

The thermal transmittance or U-value of a construction is

defined as the quantity of heat that flows through a unit

area of a building section under steady-state conditions in

unit time per temperature difference of the air on either

side of the section. It is expressed in W/(m2°K) and is

given by:

U =

Where RT is the total thermal resistance.

The higher the R, the lower the U, the better.

1

RT

GBI Requirement of Roof U-Value

Roof Weight

Group

Maximum U-Value

(W/m2K)

Light (Under 50

kg/m2)

0.4

Heavy (Above 50

kg/m2)

0.6

MS1525:2007 Clause 5.5.1The roof of a conditioned space shall not have a thermal

transmittance (U-value) greater than that tabulated in Table 9.

Spray Thermal Insulation System

Eco Construction Chemicals

Table 9. Maximum U-value for roof (W/m2K)

R.C Roof WITHOUT insulation THERMAL

CONDUCTIVITY

(W.mK)

R - THERMAL

RESISTANCE

(m2 K/W)

1 External surface - 0.040

2 Cement screed, 50mm thk 0.41 0.122

3 Waterproof membrane 0.23 0.004

4 R.C Slab, 150mm thk 2.30 0.065

5 Internal surface - 0.130

0.362Total R

Before, U-Value =

=

= 2.762 W/m2k

Spray Thermal Insulation System

Eco Construction ChemicalsRoof U-value (Before)

Note: System compared based on same material (as refer to GBI). Variant on different material using.

1

R

1

0.362

THERMAL

CONDUCTIVITY

(W.mK)

R - THERMAL

RESISTANCE

(m2 K/W)

1 External surface - 0.040

2 Cement screed, 50mm thk 0.41 0.122

3 Waterproof membrane 0.23 0.004

4 50mm thk Pentens PU-130 0.0272 1.838

5 R.C Slab, 150mm thk 2.30 0.065

6 Internal surface - 0.130

2.199

R.C Roof WITH insulation

Improved U-Value =

=

= 0.455 W/m2k

Total R

Spray Thermal Insulation System

Eco Construction ChemicalsRoof U-value (Improved)

4

Note: System compared based on same material (as refer to GBI). Variant on different material using.

1

R

1

2.199

Winter Summer

Cool Air Warm Air

Reflection Reflection

Reflection

Reflection

Reflection

Reflection

ReflectionReflection

Earthy Air Earthy Air

Warm Air Cool Air

Spray Thermal Insulation System

Eco Construction ChemicalsSpray Polyurethane Insulation Foam

Thermal Insulation Wall Spray Thermal Insulation System

Eco Construction Chemicals

This thermal

Insulation wall is a

lightweight thermal

insulation material

which made of

vitrified material,

mixed with

cementitious powder,

anti cracking

additives and other

ingredients,

produced in a ready-

Thermal Insulation Wall

� Low thermal

conductivity

(0.070 W/(m°K)

� Lightweight & High

Strength

� Good Insulating

Abilities

� Energy Saving

� Easy application

� Durable & Non-

flammable

Spray Thermal Insulation System

Eco Construction Chemicals

Thermal Insulation Wall

A simple simulation have carried out to study what

benefits the thermal plaster will bring to the

customers with respect to annual energy savings and

improvement of thermal comfort.

Spray Thermal Insulation System

Eco Construction Chemicals

Case study 1:

Plan View Elevation View

Thermal Insulation Wall

Shading Device:

- External shading

device has been

assumed for all three

rooms.

- Internal roller blind has

been provided.

Spray Thermal Insulation System

Eco Construction Chemicals

Thermal Insulation Wall Spray Thermal Insulation System

Eco Construction Chemicals

Intermittent AC Scenario - West Room ( Monday)

(Air Conditioning Hour : 9pm – 7am)

34

33

32

31

30

29

28

27

26

25

24

23

OperativeTemperature

(degC)

S1_No insulation S2_20mm Thermal Plaster S3_40mm Thermal Plaster

S4_60mm Thermal Plaster Outdoor Temperature

Figure 1: Operative Temperature for West room on Monday (Overcast sky)

Thermal Insulation Wall Spray Thermal Insulation System

Eco Construction Chemicals

OperativeTemperature(degC)

35

34

33

32

31

30

29

28

27

26

25

24

S1_No insulation S2_20mm Thermal Plaster S3_40mm Thermal Plaster

S4_60mm Thermal Plaster Outdoor Temperature

Intermittent AC Scenario - West Room ( Monday)

(Air Conditioning Hour : 9pm – 7am)

Figure 2: Operative temperature for West room on Monday (Sunny Day)

Thermal Insulation Wall Spray Thermal Insulation System

Eco Construction Chemicals

Non AC Scenario - West Room ( Monday)

Figure 3: Operative temperature for West room on Monday (Overcast Day)

OperativeTemperature

(degC) 34

33

32

31

30

29

28

27

26

25

24

23

S1_No insulation S2_20mm Thermal Plaster S3_40mm Thermal Plaster

S4_60mm Thermal Plaster Outdoor Temperature

Thermal Insulation Wall Spray Thermal Insulation System

Eco Construction Chemicals

Non AC Scenario - West Room ( Monday)

Figure 4: Operative temperature for West room on Monday (Sunny Day)

OperativeTemperature(degC)

35

34

33

32

31

30

29

28

27

26

25

24

S1_No insulation S2_20mm Thermal Plaster S3_40mm Thermal Plaster

S4_60mm Thermal Plaster Outdoor Temperature

Thermal Insulation Wall Spray Thermal Insulation System

Eco Construction Chemicals

Simulation Scenarios Total AnnualEnergy

Consumption(kWh)

Annualenergysaving

compared toBase( kWh)

AnnualEnergysaving

( kWh/m2

of wall)

AnnualEnergy

Cost (RM)

AnnualMonetarysavings

( RM/m2 ofexternal wall)

Annual EnergySavings for

Typical House

floor area of100m2 (RM)

S1: No Insulation (Base) 6,045 - - 2188 -

S2:20mm Thermal

Plaster

5,919 126 2.33 2120 1.26 126

S3:40mm Thermal

Plaster

5,874 171 3.16 2098 1.66 166

S4: 60mm ThermalPlaster

5,854 191 3.54 2089 1.83 183

Table 10: Total Annual Energy Consumption and energy saving

Thermal Insulation Wall Spray Thermal Insulation System

Eco Construction Chemicals

OTTV FORMULA – For Fenestration at each given orientation

Heat gain from

conductance

through walls

Heat gain from

conductance

through windows

Solar heat gain

through the

glazing

Where,

WWR is the window-to-gross exterior wall area ratio for the orientation under consideration;

α is the solar absorptivity of the opaque wall;

UW is the thermal transmittance of opaque wall (W/m2 K);

Uf is the thermal transmittance of fenestration system (W/m2 K);

CF is the solar correction factor; as in Table 1; and

SC is the shading coefficient of the fenestration system

Plastered Brick Wall THERMAL

CONDUCTIVITY

(W.mK)

R - THERMAL

RESISTANCE

(m2 K/W)

1 External surface - 0.550

2 External plaster, 13mm 0.57 0.023

3 Brick 0.77 0.130

4 Indoor plaster, 13mm thk 0.57 0.023

5 Internal surface - 0.130

0.360Total R

Before, U-Value =

=

= 2.774 W/m2k

Spray Thermal Insulation System

Eco Construction ChemicalsWall U-value (Before)

Note: System compared based on same material (as refer to GBI). Variant on different material using.

1

R

1

0.360

Thermal Plastered Brick Wall

Improved U-Value =

=

= 1.604 W/m2k

Spray Thermal Insulation System

Eco Construction ChemicalsWall U-value (Improved)

Note: System compared based on same material (as refer to GBI). Variant on different material using.

1

R

1

0.623

THERMAL

CONDUCTIVITY

(W.mK)

R - THERMAL

RESISTANCE

(m2 K/W)

1 External surface - 0.550

2 Thermal plaster, 13mm 0.07 0.286

3 Brick 0.77 0.130

4 Indoor plaster, 13mm thk 0.57 0.023

5 Internal surface - 0.130

0.623Total R2

Thermal Plastered Wall

Spray Thermal Insulation System

Eco Construction ChemicalsWall U-value

U-Values

(W/m2.K)

Percent

Improvement

1 Base 2.774 -

2 Thermal plaster, 20mm 1.604 42%

3 Thermal plaster, 40mm 1.100 60%

4 Thermal plaster, 60mm 0.837 70%

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