2012.gada 8.novembra seminārā "Aktualitātes mājokļu renovācijā Vācijā, Polijā un Latvijā" Eva Kosmala (Knauf Insulation”, Polija”) pastāstīja par to, kā ietaupīt enerģiju, izmantojot jumtus/ieteikumi jumtu renovācijai

1. Time to save energy by
PITCHED ROOF
with
KNAUF INSULATION
Riga
08.11.2012r
Heat loss in the house
Roof is like :
Cup during winter 25 – 30 %
Hat during summer
We may lose even 30% heat through wrongly insulated roof
07/11/2012 2
1

2. Pitched Roof Thermal Insulation
07/11/2012 3
Pitched Roof Thermal Insulation
In the case of usable attic we can install the insulation in the following ways:
•between the rafters
•between and under the rafters – KI PITCHED ROOF SYSTEMS
•above the rafters
The thickness of thermal insulation and its placement depends on:
• required thermal insulation performance,
• roof pitch,
• rafter height,
• type of roof cladding used,
• type of roof membrane used.
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2

3. Two layers
Pitched Roof KI Systems
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Where put vapour barrier ?
A / Pitched roof ridge sectional view, with vapour barrier
installed between two thermal insulation layers. The ratio B / Pitched roof ridge sectional view with vapour barrier
of the insulation between the rafters (above the vapour installed under the thermal insulation layers
barrier) to the insulation under the rafters (below the
vapour barrier) should be 5:1.
Recommended arrangement
for KI ROOFS
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3

4. kind of vapour barrier
vapor permeability equivalent diffusion
[g/m2/24h] thickness of air layer
Sd [m]
Vapor barrier < 0,01 100 – 1000
(with metal or bitumen)
Vapor retarder 0,2- 0,5 20 – 60
(PE foil thickness 0,15 – 0,2 mm)
Vapor regulator 4 -700 0,1 -10
(carrier from PP fiber)
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Can GMW be installed at the entire
height of the rafters?
In the case of using the highly water vapour
permeable roof membrane - the thermal insulation
in form of the GMW with Ecose Technology can
be installed at the entire height of the rafter.
When full hard boarding or low permeable roof
membrane is installed over the thermal insulation
of the GMW with Ecose Technology then a
ventilation gap of ca. 2.5 cm must be left under the
boarding.
07/11/2012 8
4

5. Takie mamy przepisy prawne
Thermal requirements for pitched roof
Umax W/m2K Umax W/m2K
local law Ecofys
Estonia 0,16 0,14 ÷ 0,17
Latvia 0,20 0,15 ÷ 0,18
Lithuania 0,18 0,16 ÷ 0,18
Remember !!!!
U designe= PITCHED ROOF SYSTEMS KI ≤ U max
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Optimum U-value for roofs based on
ECOFYS report
WEO reference peak price scenario
Latvia
U= 0,15 W/m2K
U= 0,18 W/m2K
www.eurima.org
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5

6. Premium Roof - Classic + TP 115
+
Optimal insulation it’s the most
effective method of saving
energy
Haw to calculate and check U-value ?
You can use the tools KI-DESIGNER :
KI-Therm
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6

7. Haw to calculate and check U-value ?
You can use the tools KI-DESIGNER :
KI-Therm
EN 6946
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Haw to calculate and check U-value ?
You can use the tools KI-DESIGNER :
KI-Therm
EPD
EN 15804
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7

8. Popular Roof -
mineral wool only between rafters
This is photo from inside of building –
Yellow colour means insufficient insulation that’s way we read the colour opposite:
– there should be blue colour blue and green rafters mean frost
penetration
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Haw the distance between rafters
influence on the U-value – one layer insulation
influence rafters distance on U-value
0,55
0,5
U-value [W/m2K]
0,45 80 cm
70 cm
0,4 60 cm
0,35
0,3
10 12 14 15 16
insulation thickness [cm]
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8

9. Haw the distance between rafters
influence on the U-value – two layers insulation
influence rafters distance on U-value
after renovation
0,320
0,270
U-value [W/m2K]
80 cm
0,220 70 cm
60 cm
0,170
0,120
17 18 19 20 21 22 23 24 25 26 27 28 29 30
insulation thickness [cm ]
07/11/2012 17
Popular Roof – old one before renovation
1. Roof covering
2. Batten
3. Counter batten
4. Louver (ventilalated gap)
5. Breather membrane
6. Louver (ventilalated gap) or no louver
7. Insulation :
mineral wool only between
rafters
8. Plasterboard
9. Vapour barrie
10. Stud frames or timber
battens
11. Rafters
tdp=15oC ⇒ cold !!!
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9

10. Popular Roof -
mineral wool only between rafters
cold internal roof surface in the inhabited attic:
feeling of chill radiating from the internal
surface of the roof
lower comfort of use
necessity to wear warmer clothes
with time, dirty stripes appear at the rafters
lower aesthetic comfort
need for more frequent renovation
of the internal surface of the roof
07/11/2012 19
KI ROOF’S SYSTEMS
1. Roof covering
2. Batten
3. Counter batten
4. Louver (ventilalated gap)
5. Breather membrane
6. Louver (ventilalated gap) or no louver
7. Insulation always two
layers :
Premium Roof
Premium Plus Roof
8. Plasterboard
9. Vapour barrie
10. Stud frames or timber
battens
11. Rafters
tdp=19oC ⇒ warm !!!
07/11/2012 20
10

11. DOUBLE-LAYER
KI ROOF SYSTEMS
warm internal roof surface in the inhabited
attic:
comfortable temperature sensed
by the inhabitants
high comfort of use
increased life of the all the internal roof
surface materials:
eliminated frost penetration into the
internal surface of the roof
longer life of the internal plasterboard
finish
no dark or dirty stripes at the rafters
no money and time wasted on
frequent renovation of the internal roof
surface finish
07/11/2012 21
PREMIUM PLUS ROOF
Blue colour of well insulated Roof in the one of
PITCHED ROOF INSULATION SYSTEMS KI
means lack of no control and overmuch loss of
heat from loft (attic)
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11

12. KI ROOF Fire Safety
The ECOSE Technology mineral wool features the
highest fire reaction class A1 – which means that the
pitched roof products are NON-COMBUSTIBLE
The requirements regarding fire reaction class contained
in the Construction Law
The EI 30 fire resistance class is already provided by
installation of the GKF plasterboard (e.g. Knauf)
of 12.5 mm thickness, on the inside surface of the roof
The EI 60 fire resistance class is already provided by
installation of the GKF plasterboard (e.g. Knauf) of 25 mm
thickness, or fire-resistant board 18+15 mm (e.g. Knauf),
on the inside of the roof
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PICHED ROOF SYSTEMS KI
Insulations systems Insulation between the Insulation under the
Knauf Insulation rafters rafters
product thickness product thickness
[mm] [mm]
BETTER
PREMIUM ROOF Classic 200 Classic / min.50
TP 115
ENERGY-SAVING Classic 200 Classic / min.100
PREMIUM ROOF TP 115
THE BEST
PREMIUM PLUS ROOF Unifit 200 Unifit min. 50
ENERGY-SAVING Unifit 200 Unifit min. 100
PREMIUM PLUS ROOF
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12

13. PREMIUM PITCHED ROOF
ENERGY-SAVING PREMIUM PITCHED ROOF
Ryga
08.11.2012r
DACH PREMIUM
Insulations systems Insulation between the Insulation under the
Knauf Insulation rafters rafters
product thickness product thickness
[mm] [mm]
BETTER
PREMIUM ROOF Classic 200 Classic / min.50
TP 115
ENERGY-SAVING Classic 200 Classic / min.100
PREMIUM ROOF TP 115
07/11/2012 26
13

14. Premium Roof - Classic + Classic or TP 115
20 cm + min. 10 cm
A E nergy-saving - you are in conformity with the Construction
§ Law, and save energy (U < 0.25 W/m2K)
Economy - it is beneficial, you can lower your heating bills,
A and the roof insulation investment returns in 2 years
A $ Flexibility - selection of proper insulation thickness for the specific
roof solution
A E cology - you reduce your CO2 emission, and you can save
3 trees every year
E cose - you can take advantage of all benefits
of the new technology
A - easy installation, soft touch
- less dusty, easy to handle
- free from formaldehyde, phenol and acrylic
07/11/2012 28
14

15. Premium Roof - Classic + Classic
U-value for Premium Roof
0,250
0,200
U-value [W/m2K]
0,150
0,100
0,050
0,000
22 23 24 25 26 27 28 29 30 31 32 33 34 35
total insulation thickness [cm]
classic 035 classic 035 classic 039 classic 039 classic 042 classic 042
ELASTICALLY (flexible) SYSTEM !!!
07/11/2012 29
Dach premium Classic + TP 115
U-value for Premium Roof
0,250
0,200
U-value [W/m2K]
0,150
0,100
0,050
0,000
22 23 24 25 26 27 28 29 30 31 32 33 34 35
total insulation thickness [cm]
classic 035 TP 115 classic 039 TP 115 classic 042 TP 115
ELASTICALLY (flexible) SYSTEM !!!
07/11/2012 30
15

16. Classic 035; 039; 042
Thermal Class for Water vapour
conductivity thickness diffusion
λD [ W/mK] tolerances resistance
factor
Classic 035 0,035 T2 1
Classic 039 0,039 T2 1
Classic 042 0,042 T2 1
T2 ( tolerance of thickness)
-5% lub -5mm / +15% lub +15mm
Application :
• Pitched Roofs
07/11/2012 31
TP 115
Technical data :
declared thermal conductivity λD = 0,037 W/mK
declared class for thickness tolerances T2
-5% lub -5mm / +15% or +15mm
water vapour diffusion resistance factor μ = 1
Application :
Pitched Roof Partition Walls
07/11/2012 32
16

17. STANDARD ROOF installation stages
Proper installation of the roof thermal insulation has significant impact on further use of the house.
It is not enough to properly insulate the roof, but you also need to perform all the works correctly to
provide measurable effects, and to get the investment cost returned sooner thanks to the heating cost
savings.
Incorrectly made roof insulation may cause creation mould and fungus, and may significantly affect the
insulation barrier thermal properties.
Install the horizontal battens by
Measure lengths of the fixing them to the rafters, or
Install the Classic between
Classic equal to the install a steel framing consisting
the rafters, and then
distance between the of distance hangers and load
support it with string.
rafters plus 2 cm extra. bearing "C"-struts.
07/11/2012 33
STANDARD ROOF installation stages
Install the second layer Install the vapour barrier
of the Classic or TP membrane on the entire Fix plasterboards to
115 between the battens internal area of the roof the insulated surface.
or steel framing with 10 cm overlap.
07/11/2012 34
17

18. PREMIUM System
PREMIUM ROOF ENERGY-SAVING
PREMIUM ROOF
Good thermal insulation Very good thermal insulation – according
to the newest trends in energy-saving
Solution for professionals
Solution for professionals
Wide range of products available for
specific desired roof insulation properties Wide range of products available for
specific desired roof insulation properties
Allows to choose the appropriate thermal
insulation thickness for the desired roof Allows to choose the appropriate thermal
insulation properties insulation thickness for the desired roof
insulation properties
Fast return on investment – after one
year Fast return on investment – after one year
Lower CO2 emission – saves Lower CO2 emission – saves
3 trees every year 3 trees every year
ECOSE Technology advantages ECOSE Technology advantages
07/11/2012 35
PREMIUM PLUS PITCHED ROOF
ENERGY-SAVING PREMIUM PLUS PITCHED ROOF
Ryga
18.11.2010r
18

19. PREMIUM PLUS ROOF
Insulations systems Insulation between the Insulation under the
Knauf Insulation rafters rafters
product thickness product thickness
[mm] [mm]
THE BEST
PREMIUM PLUS ROOF Unifit 200 Unifit min. 50
ENERGY-SAVING Unifit 200 Unifit min. 100
PREMIUM PLUS ROOF
07/11/2012 37
19

20. Premium Plus Roof - Unifit + Unifit
15 cm + min. 5 cm
Energy-saving - you are in conformity with the Construction Law,
A § and save energy (U < 0.25 W/m2K)
Economy - it is beneficial, you can lower your heating bills,
A $ and the roof insulation investment returns in 2 years
Economy - it's beneficial, you can reduce labour costs for
A insulation installation works
$ Economy - t's beneficial, you can shorten the installation
A works
$ Flexibility - selection of proper insulation thickness for the specific
A roof solution
Ecology - you reduce your CO2 emission, and you can save
A some trees every year
Ecose - you can take advantage of all benefits
A of the new technology
07/11/2012 39
Energy-Saving Premium Plus Roof -
Unifit + Unifit
20 cm + min. 10 cm
A+ § E nergy-saving - you are in conformity with the latest European
§ trends in energy saving (U < 0.19 W/m2K)
Economy - it is beneficial, you can lower your heating bills,
and the roof insulation investment returns in 2 years
$
A+ Economy - it's beneficial, you can reduce labour costs for
A+ $
insulation installation works
Economy - it's beneficial, you can shorten the installation works
A+ $ Flexibility - selection of proper insulation thickness for the specific
roof solution
A+ Ecology - you reduce your CO2 emission, and you can save
some trees every year
E cose - you can take advantage of all benefits
A of the new technology
07/11/2012 40
20

21. Unifit 035; 039;
Thermal Class for Water vapour
conductivity thickness diffusion
λD [ W/mK] tolerances resistance
factor
Unifit 035 0,035 T2 1
Unifit 039 0,039 T2 1
T2 means -5% lub -5mm / +15% lub +15mm
Application :
• Pitched Roof
07/11/2012 41
STANDARD ROOF installation stages
Proper installation of the roof thermal insulation has significant impact on further use of the house.
It is not enough to properly insulate the roof, but you also need to perform all the works correctly to
provide measurable effects, and to get the investment cost returned sooner thanks to the heating cost
savings.
Incorrectly made roof insulation may cause creation mould and fungus, and may significantly affect the
insulation barrier thermal properties.
Install the horizontal battens by
Measure lengths of the fixing them to the rafters, or
Install the Unifit between
Unifit equal to the distance install a steel framing consisting
the rafters, without
between the rafters plus 2 of distance hangers and load
support it with string.
cm extra. bearing "C"-struts.
07/11/2012 42
21

22. WHY Knauf Insulation GMW
in the ENERGY-SAVING
PITCHED ROOF
Ryga
08.11.2012r
Eurofins Gold
natural resources emission from the building
Indoor
environment
quality
Primary greenhouse
energy gas emissions
(GWP)
Water Thermal Indoor Waste
comfort air quality
22

23. Eurofins Gold
natural resources emission from the building
Indoor
environment
quality
Primary greenhouse
energy gas emissions
(GWP)
Water Thermal Indoor Waste
comfort air quality
Eurofins Gold
without formaldehyde
without phenol
without acrylic
without carcinogenic substances
07/11/2012 46
23

24. What is ECOSE® Technology
A step change in sustainability
for binder technology
Revolutionary, new, formaldehyde-free binder technology
Based on rapidly renewable materials instead of petro-based chemicals
Reduces workplace exposures and pollutant manufacturing emissions
Reduces impact on environment through lower embodied energy
Offers same benefits to other products where resin-substitution is an advantage
Wood based panels
Abrasives
Friction materials
Superior handling
A new generation of mineral wool
that feels good…naturally
Softer feel
Odourless
Easy to cut
24

25. Superior handling
Installer trials
Installer trials throughout Europe from 2009 till 2010 with over 5000 installers
Softer feel Odourless Easy to cut
More than 90% of More than 80% of installers A majority of installers
professional installers prefer the neutral smell of indicate an ease in cutting
stated a softer feel and mineral wool with ECOSE mineral wool with ECOSE
less itchiness compared Technology over the smell Technology.
to conventional mineral of traditional glass wool.
wool. “I prefer this product
“You really cannot smell it. because, quite simply,
“This is great stuff! It It’s definitely an it’s easy to work with. ”
doesn’t make my skin improvement over the
itch; I can’t believe that smell of traditional glass
this is glass mineral wool and makes the
wool.” product more pleasant to
work with”
Superior level of sustainability
Mineral wool with ECOSE Technology delivers a superior level of
sustainability…
Manufactured from naturally occurring and/or
recycled materials
Free from formaldehyde, phenols and acrylics
Contributes to improved indoor air quality
compared to our conventional mineral wool
Improves the overall sustainability of buildings
Lower embodied energy
Improves the overall sustainability of buildings
Cost competitive
25

26. Delivers all the benefits you are used to
Proven product performance combined
with improved durability
Energy saving
High insulation efficiency for maximum
thermal comfort
Non-combustibility for enhanced safety
Superb acoustic performance
Moisture related properties
Improved durability
Proven performance
26

27. Proven performance
Improved durability
27

28. Thank you for attention
28