KLB flat blocks SW1

Thermal insulation for low-energy and passive houses / Approval Z-17.1-730

 

KLB flat blocks SW1 correspond to slotted full blocks and are thermal insulation blocks for low-energy houses pursuant to EnEV 2016, energy efficient houses KfW-55, KfW-40 or passive houses. In conjunction with KLB thin-bed mortar, best values of thermal conductivity (λR ≥ 0.10 W/mK) result for this masonry depending on the gross density and strength class. Low energy houses with 36.5 cm thick exterior walls without additional insulation can be built according the requirements of the EnEV with these blocks.

 

KLB flat blocks SW1 are approved by the German Institute for Construction Technology (DIBt), Berlin, Approval Z-17.1-730.

  • SW1 - 24,0 cm
  • SW1 - 30,0 cm
  • SW1 - 36,5 cm
  • SW1 - 42,5 cm
  • SW1 - 49,0 cm

Block variety/Block type

KLB flat blocks SW1 - Z-17.1-730

Wall thickness

cm

24

Format

-

16 DF

Length

mm

497

Width

mm

240

Height

mm

249

Number of chamber/slot rows

-

6

Tensile strength class (medium tensile strength)

(N/mm²)

2 (2,5)

4 (5,0)

Compressive stress σ0 m. DBM

MN/m²

0,5

0,9

Character. Value of compressive strength fk

MN/m²

1,5

2,7

Gross density class

-

0,45

0,60

Calculated weight with DBM

kN/m³

5,5

7,0

Coefficient of thermal conductivity λR with DBM

W/mK

0,10**

0,14

Thermal resistance  RT with DBM

m²K/W

2,68**

1,99

U-value*) with DBM

W/m²K

0,37**

0,50

Heat storage capacity

kJ/m²K

146

194

Cool down time

h

100

98

Fire resistance, α2 = 1.0, plastered

-

F 90-A

F 90-A

Fire wall, plastered once

-

no

no

Block requirements per m²

piece

8

8

Block requirements per m³

piece

33

33

Mortar requirements per m²

Liter

3,0

3,0

Mortar requirements per m³

Liter

12

12

Working time reference value full masonry

h/m³(h/m²)

1,40

1,55

Working time reference value categorised. Masonry

h/m³(h/m²)

1,45

1,60

Packet/palette content

piece

48

48

Average weight per block 1)

kg

17

23

Article number 40391070

-

36571

36717

Main field of application 2)

-

2; 3

2; 3

 

Block variety/Block type

KLB flat blocks SW1 - Z-17.1-730

Wall thickness

cm

30,0

Format

-

10 DF           20DF

Length

mm

247              497

Width

mm

300              300

Height

mm

249              249

Number of chamber/slot rows

-

7                  7

Tensile strength class (medium tensile strength)

(N/mm²)

4 (5,0)

2 (2,5)

Compressive stress σ0 m. DBM

MN/m²

0,9

0,5

Character. Value of compressive strength fk

MN/m²

2,7

1,5

Gross density class

-

0,60

0,45

Calculated weight with DBM

kN/m³

7,0

5,5

Coefficient of thermal conductivity λR with DBM

W/mK

0,14

0,10

Thermal resistance  RT with DBM

m²K/W

2,42

3,28

U-value*) with DBM

W/m²K

0,41

0,30

Heat storage capacity

kJ/m²K

242

203

Cool down time

h

151

175

Fire resistance, α2 = 1.0, plastered

-

F 90-A   

F 30-A

Fire wall, plastered once

-

no

no

Fire wall, plastered twice

-

-

-

Block requirements per m²

piece

16

8

Block requirements per m³

piece

54

27

Mortar requirements per m²

Liter

3,6

3,6

Mortar requirements per m³

Liter

12

12

Working time reference value full masonry

h/m³(h/m²)

1,70

1,45

Working time reference value categorised. Masonry

h/m³(h/m²)

1,95

1,60

Packet/palette content

piece

72

36

Average weight per block 1)

kg

14

22

Article number 40391070

-

35079

35109

Main field of application 2)

-

2, 3

2, 3

 

Block variety/Block type

KLB flat blocks SW1 - Z-17.1-730

Wall thickness

cm

36,5

Format

-

12 DF

Length

mm

247

Width

mm

365

Height

mm

249

Number of chamber/slot rows

-

  

Tensile strength class (medium tensile strength)

(N/mm²)

2 (2,5)

4 (5,0)

Compressive stress σ0 m. DBM

MN/m²

0,5

0,9

Character. Value of compressive strength fk

MN/m²

1,5

2,7

Gross density class

-

0,45

0,6

Calculated weight with DBM

kN/m³

5,5

7,0

Coefficient of thermal conductivity λR with DBM

W/mK

0,10

0,14

Thermal resistance  RT with DBM

m²K/W

3,93

2,89

U-value*) with DBM

W/m²K

0,25

0,35

Heat storage capacity

kJ/m²K

239

288

Cool down time

h

249

218

Fire resistance, α2 = 1.0, plastered

-

F 30-A

F 90-A

Fire wall, plastered once

-

no

no

Block requirements per m²

piece

16

16

Block requirements per m³

piece

44

44

Mortar requirements per m²

Liter

4,5

4,5

Mortar requirements per m³

Liter

12

12

Working time reference value full masonry

h/m³(h/m²)

1,60

1,65

Working time reference value categorised. Masonry

h/m³(h/m²)

1,85

1,90

Packet/palette content

piece

60

60

Average weight per block 1)

kg

13

17

Article number 40391070

-

35116

35086

Main field of application 2)

-

2, 3

2, 3

 

Block variety/Block type

KLB flat blocks SW1 - Z-17.1-730

Wall thickness

cm

42,5

Format

-

14 DF

Length

mm

247

Width

mm

425

Height

mm

249

Number of chamber/slot rows

-

11

Tensile strength class (medium tensile strength)

(N/mm²)

2 (2,5)

  

Compressive stress σ0 m. DBM

MN/m²

0,5

  

Character. Value of compressive strength fk

MN/m²

1,5

  

Gross density class

-

0,45

  

Calculated weight with DBM

kN/m³

5,5

  

Coefficient of thermal conductivity λR with DBM

W/mK

0,10

  

Thermal resistance  RT with DBM

m²K/W

4,53

  

U-value*) with DBM

W/m²K

0,22

  

Heat storage capacity

kJ/m²K

229

  

Cool down time

h

275

  

Fire resistance, α2 = 1.0, plastered

-

F 30-A

  

Fire wall, plastered once

-

no

  

Fire wall, plastered twice

-

-

  

Block requirements per m²

piece

16

  

Block requirements per m³

piece

38

  

Mortar requirements per m²

Liter

5,0

  

Mortar requirements per m³

Liter

12

  

Working time reference value full masonry

h/m³(h/m²)

1,75

  

Working time reference value categorised. Masonry

h/m³(h/m²)

1,95

  

Packet/palette content

piece

48

  

Average weight per block 1)

kg

15

  

Article number 40391070

-

36588

  

Main field of application 2)

-

2

  

Block variety/Block type

KLB flat blocks SW1 - Z-17.1-730

Wall thickness

cm

49,0

Format

-

16 DF

Length

mm

247

Width

mm

490

Height

mm

249

Number of chamber/slot rows

-

13

Tensile strength class (medium tensile strength)

(N/mm²)

2 (2,5)

  

Compressive stress σ0 m. DBM

MN/m²

0,5

  

Character. Value of compressive strength fk

MN/m²

1,5

  

Gross density class

-

0,45

  

Calculated weight with DBM

kN/m³

5,5

  

Coefficient of thermal conductivity λR with DBM

W/mK

0,10

  

Thermal resistance  RT with DBM

m²K/W

5,18

  

U-value*) with DBM

W/m²K

0,19

  

Heat storage capacity

kJ/m²K

259

  

Cool down time

h

375

  

Fire resistance, α2 = 1.0, plastered

-

F 30-A

  

Fire wall, plastered once

-

no

  

Fire wall, plastered twice

-

-

  

Block requirements per m²

piece

16

  

Block requirements per m³

piece

33

  

Mortar requirements per m²

Liter

6,0

  

Mortar requirements per m³

Liter

12

  

Working time reference value full masonry

h/m³(h/m²)

1,75

  

Working time reference value categorised. Masonry

h/m³(h/m²)

1,95

  

Packet/palette content

Stück

48

  

Average weight per block 1)

kg

18

  

Article number 40391070

-

36700

  

Main field of application 2)

-

2

  

*) plastered, inside with 15 mm gypsum light-weight plaster λR = 0.35 W/mK, outside with 20 mm mineral fibre light-weight plaster λR = 0.31 W/mK

**) with DBM "L"

- not applicable, not standard

1) higher weight possible depending on weather

2) 1 = basement masonry, 2 = exterior masonry, 3 = back-up masonry, 4 = interior masonry, 5 = light-weight separation wall,
6 = statically stressed masonry, 7 = sound insulating masonry, with addition “x” = supplementary block

Approvals
Data