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	CONCRETE BLOCKS
		Dense concrete blocks
		Hollow and cellular
		Fibotherm insulating blocks
		Stowlite lightweight blocks
		Midi blocks
		MACRO blocks
		Generation 2 MACRO blocks
		T-joist first floor profile blocks
		Soap bar blocks, coursing and slip bricks
		Design your own block
		Padstones
		T-Joist first floor recessed profile blocks
		Foundation (trench) blocks

	PAVING SLABS
		Commercial slabs
		Patio paving and wet cast edgings
		Tactile and patterned paving
		Vintage/traditional and decorative
		Permeable paving

	KERBS, EDGINGS & CHANNELS
	KERBS, EDGINGS & CHANNELS

	FLOORING
		T-joist flooring
		Hollowcore flooring
		Flooring blocks
		Accessories
		On-site instructions for pre-cast joists
		On-site instructions for pre-cast hollowcore flooring planks

	FLOORING SOLUTIONS
	For separating floors to help satisfy Robust details part E
		E-FC-1, 4 and 5
		E-FC-8, 9 and 11
		E-FC-1(RSC) and 9(RSC)
		E-FC-6 and 7
	For domestic floors
		D1, D2 and D5
		D3 and D4
	For ground floors to help satisfy Part L
		L1, L2, L3 and L4

	PRE-CAST CONCRETE LINTELS
	PRE-CAST CONCRETE LINTELS

	EDGING, COPING, BOLLARDS AND PILLAR CAPS
	EDGING, COPING, BOLLARDS AND PILLAR CAPS
		Edging, bollards & pillar caps
		Wall coping

	FENCING
		Fencing products
		Semi-dry economy fencing
		Portable post bases
		Concrete barriers

Fibotherm lightweight insulating blocks

Using Fibotherm insulation blocks with specific types of insulation achieves the following ‘U’ values expressed in W/m²K**

OPTION 1 FULL FILL	Outside resistance 100mm block+19mm render 100mm Dritherm standard 100mm Stowell Fibotherm 12.5mm drylining on Dabbs Inside resistance Sum of resistances Uncorrected U-value Correction U-VALUE	0.040 0.136 2.703 0.400 0.230 0.130 3.639 m²K/W 0.273 W/m2K 0.026 0.300 W/m²K


OPTION 2 PARTIAL FILL	Outside resistance 105mm brick 50mm low emissivity cavity 50mm Kingspan TW50 100mm Stowell Fibotherm 12.5mm drylining on Dabbs Inside resistance Sum of resistances Uncorrected U-value Correction U-VALUE	0.040 0.136 0.644 2.174 0.400 0.230 0.130 3.754 m²K/W 0.266 W/m2K 0.026 0.292 W/m²K

OPTION 3 PARTIAL FILL	Outside resistance 100mm block+19mm render 50mm low emissivity cavity 50mm Kingspan Kooltherm K8 100mm Stowell Fibotherm 12.5mm drylining on Dabbs Inside resistance Sum of resistances Uncorrected U-value Correction U-VALUE	0.040 0.136 0.644 2.380 0.400 0.230 0.130 3.960 m²K/W 0.252 W/m2K 0.026 0.278 W/m²K


OPTION 4 FULL FILL	Outside resistance 105mm brick 100mm Dritherm 32 100mm Stowell Fibotherm 12.5mm drylining on Dabbs Inside resistance Sum of resistances Uncorrected U-value Correction U-VALUE	0.040 0.136 3.125 0.400 0.230 0.130 4.061 m²K/W 0.246 W/m2K 0.026 0.272 W/m²K

All products are available ex works.
Prices on application.
Telephone our sales office for further information and quotations.

	Stowell Fibotherm blocks are ideal for...
	INNER OR OUTER LEAF CAVITY WALLS
	PARTITION WALLS
	Stowell Fibotherm blocks comply with BS EN 771-3 and offer the following advantages...
	HIGH INSULATION
	LOW SHRINKAGE
	LOW SITE BREAKAGE
	LOW DENSITY
	GOOD FIXABILITY
	EXCELLENT PLASTER KEY

OVEN DRY DENSITY approx 850kg/m³
SIZE mm	approx weight kg	number per tonne
440x215x75	6.7	150
440x215x100	9.0	110
440x215x140	12.5	80
440x215x190	17.2	58

MINIMUM COMPRESSIVE
STRENGTH: 3.6N/mm³

THERMAL CONDUCTIVITY:
0.25W/mk* at 3% m/c (inside skin)
0.28W/mk* at 5% m/c (outside skin)

THERMAL RESISTANCE
Size mm	m²K/W at:
440x215x75	3%m/c 0.8	5%m/c 0.27
440x215x100	3%m/c 0.10	5%m/c 0.36
440x215x140	3%m/c 0.14	5%m/c 0.50
440x215x190	3%m/c 0.19	5%m/c 0.68
(m/c = moisture content)

DRYING SHRINKAGE: 0.026% - 0.04%

FIRE RESISTANCE :
Fibotherm blocks are manufactured using Class 1 lightweight aggregates which are processed at approx. 1150°C (melting point in excess of 1250°C).

* Tested by BRE
** For walls, U-value calculations of 0.35 W/m²K or lower must be obtained for new dwellings (L1A) but in practice, to achieve satisfactory SAP rating, walls need to be designed in the region of 0.28 W/m²K to 0.30 W/m²K. 0.30 W/m²K is the requirement for work on existing buildings (L1B).

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CONCRETE BLOCKS

PAVING SLABS

FLOORING

FLOORING SOLUTIONS

For separating floors to help satisfy Robust details part E

For domestic floors

For ground floors to help satisfy Part L

EDGING, COPING, BOLLARDS AND PILLAR CAPS

FENCING

Fibotherm lightweight insulating blocks

Using Fibotherm insulation blocks with specific types of insulation achieves the following ‘U’ values expressed in W/m2K**

OPTION 1 FULL FILL

Outside resistance 100mm block+19mm render 100mm Dritherm standard 100mm Stowell Fibotherm 12.5mm drylining on Dabbs Inside resistance Sum of resistances Uncorrected U-value Correction U-VALUE

0.040 0.136 2.703 0.400 0.230 0.130 3.639 m2K/W 0.273 W/m2K 0.026 0.300 W/m2K

OPTION 2 PARTIAL FILL

Outside resistance 105mm brick 50mm low emissivity cavity 50mm Kingspan TW50 100mm Stowell Fibotherm 12.5mm drylining on Dabbs Inside resistance Sum of resistances Uncorrected U-value Correction U-VALUE

0.040 0.136 0.644 2.174 0.400 0.230 0.130 3.754 m2K/W 0.266 W/m2K 0.026 0.292 W/m2K

OPTION 3 PARTIAL FILL

Outside resistance 100mm block+19mm render 50mm low emissivity cavity 50mm Kingspan Kooltherm K8 100mm Stowell Fibotherm 12.5mm drylining on Dabbs Inside resistance Sum of resistances Uncorrected U-value Correction U-VALUE

0.040 0.136 0.644 2.380 0.400 0.230 0.130 3.960 m2K/W 0.252 W/m2K 0.026 0.278 W/m2K

OPTION 4 FULL FILL

Outside resistance 105mm brick 100mm Dritherm 32 100mm Stowell Fibotherm 12.5mm drylining on Dabbs Inside resistance Sum of resistances Uncorrected U-value Correction U-VALUE

0.040 0.136 3.125 0.400 0.230 0.130 4.061 m2K/W 0.246 W/m2K 0.026 0.272 W/m2K

All products are available ex works. Prices on application. Telephone our sales office for further information and quotations.

Stowell Fibotherm blocks are ideal for...

INNER OR OUTER LEAF CAVITY WALLS

PARTITION WALLS

Stowell Fibotherm blocks comply with BS EN 771-3 and offer the following advantages...

HIGH INSULATION

LOW SHRINKAGE

LOW SITE BREAKAGE

LOW DENSITY

GOOD FIXABILITY

EXCELLENT PLASTER KEY

OVEN DRY DENSITY approx 850kg/m3

SIZE mm

approx weight kg

number per tonne

440x215x75

6.7

150

440x215x100

9.0

110

440x215x140

12.5

80

440x215x190

17.2

58

MINIMUM COMPRESSIVE STRENGTH: 3.6N/mm3

THERMAL CONDUCTIVITY: 0.25W/mk* at 3% m/c (inside skin) 0.28W/mk* at 5% m/c (outside skin)

THERMAL RESISTANCE

Size mm

m2K/W at:

440x215x75

3%m/c 0.8

5%m/c 0.27

440x215x100

3%m/c 0.10

5%m/c 0.36

440x215x140

3%m/c 0.14

5%m/c 0.50

440x215x190

3%m/c 0.19

5%m/c 0.68

(m/c = moisture content)

DRYING SHRINKAGE: 0.026% - 0.04%

FIRE RESISTANCE : Fibotherm blocks are manufactured using Class 1 lightweight aggregates which are processed at approx. 1150°C (melting point in excess of 1250°C).

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Stowell Concrete Limited, Arnolds Way, Yatton Bristol BS49 4QN Tel: 01934 834000 Fax: 01934 835474 Email: sales@stowellconcrete.co.uk

Using Fibotherm insulation blocks with specific types of insulation achieves the following ‘U’ values expressed in W/m²K**

OPTION 1
FULL FILL

Outside resistance
100mm block+19mm render
100mm Dritherm standard
100mm Stowell Fibotherm
12.5mm drylining on Dabbs
Inside resistance
Sum of resistances
Uncorrected U-value
Correction
U-VALUE

0.040
0.136
2.703
0.400
0.230
0.130
3.639 m²K/W
0.273 W/m2K
0.026
0.300 W/m²K

OPTION 2
PARTIAL FILL

Outside resistance
105mm brick
50mm low emissivity cavity
50mm Kingspan TW50
100mm Stowell Fibotherm
12.5mm drylining on Dabbs
Inside resistance
Sum of resistances
Uncorrected U-value
Correction
U-VALUE

0.040
0.136
0.644
2.174
0.400
0.230
0.130
3.754 m²K/W
0.266 W/m2K
0.026
0.292 W/m²K

OPTION 3
PARTIAL FILL

Outside resistance
100mm block+19mm render
50mm low emissivity cavity
50mm Kingspan Kooltherm K8
100mm Stowell Fibotherm
12.5mm drylining on Dabbs
Inside resistance
Sum of resistances
Uncorrected U-value
Correction
U-VALUE

0.040
0.136
0.644
2.380
0.400
0.230
0.130
3.960 m²K/W
0.252 W/m2K
0.026
0.278 W/m²K

OPTION 4
FULL FILL

Outside resistance
105mm brick
100mm Dritherm 32
100mm Stowell Fibotherm
12.5mm drylining on Dabbs
Inside resistance
Sum of resistances
Uncorrected U-value
Correction
U-VALUE

0.040
0.136
3.125
0.400
0.230
0.130
4.061 m²K/W
0.246 W/m2K
0.026
0.272 W/m²K

All products are available ex works.
Prices on application.
Telephone our sales office for further information and quotations.

Stowell Fibotherm blocks comply with
BS EN 771-3 and offer the following advantages...

OVEN DRY DENSITY approx 850kg/m³

approx
weight kg

number per
tonne

MINIMUM COMPRESSIVE
STRENGTH: 3.6N/mm³

THERMAL CONDUCTIVITY:
0.25W/mk* at 3% m/c (inside skin)
0.28W/mk* at 5% m/c (outside skin)

m²K/W at:

FIRE RESISTANCE :
Fibotherm blocks are manufactured using Class 1 lightweight aggregates which are processed at approx. 1150°C (melting point in excess of 1250°C).

Stowell Concrete Limited, Arnolds Way, Yatton Bristol BS49 4QN
Tel: 01934 834000 Fax: 01934 835474 Email: sales@stowellconcrete.co.uk