insulation boards
For building fireplaces
and heat storage stoves
Construction and
insulation material
in one
inspection doors
Access door for cleaning and inspection
The same finish as surround
Minimum visible gap between
door and frame
Surface finish for Grenaisol
Universal mortar up to 1100 °C
Stove plaster with different size
particles 1-2 mm
Easy and fast application
insulation boards
128°
C
90°C
800°
C
62°C
500
39°
300
°C
C
°C
150
°C
30m
79°C
800°
500
35°
300
°C
°C
150
λ [W.m-1.K-1]
°C
40m
at 400 °C < 0,21
C
56°C
C
m
Thermal
conductivity
111°C
m
99°C
71°C
51°C
Stapling
°C
300
C
°C
150
°C
50m
Grenaisol is easy to work using common woodworking tools.
Working with these boards creates minimum dust.
Drilling
C
500
32°
Working with Grenaisol boards
Grooving
800°
m
Screwing
Milling
Form milling
Cutting
Why not to use other materials
Why use Grenaisol
Porous materials are not suitable. They contain organic binder which
evaporates from the material when the temperature is higher than 52°C.
Simple and economical solution - construction and insulation in one.
Minimal demands on space - thin board with good insulation.
No dust when working.
Grenaisol is produced only from natural materials.
Large format suitable for easy handling and working: 1000 x 610 mm.
Easy machining with normal hand tools for wood.
Easy and quick jointing with glue, screws or staples.
Plaster (Gypsum) board is not suitable because when heated over 1000C
it loses moisture and starts to disintegrate.
Insulation wool contains organic binder which gives off a smell after
heating. Fibres are released into the room even if the material is
covered with aluminium foil.
Application of Grenaisol boards
Grenaisol can be used not only as wall insulation behind a heat source but also as a building and structural element for a fire surround
without any other additional supporting structures. Grenaisol board is sufficiently firm to ensure the necessary fireplace shell rigidity and
durability and, at the same time, has excellent insulating properties with a relatively small thickness (30-50 mm). Temperatures inside the fire
surround can reach 500°C without affecting the boards.
Thin-coat plaster can easily be applied to Grenaisol boards and can also be clad with ceramic tiles.
2
insulation boards
Grenaisol parameters and properties
Grenaisol insulation boards are made of exfoliated vermiculite and a special inorganic binder, providing high resistance to thermal shock and
temperatures up to 1250°C. They are harmless to health and free of any asbestos, glass or mineral fibres. They have sufficient strength
and mechanical stability, high durability with high electrical resistance and low thermal conductivity. Grenaisol boards are very stable and do not
release any vapours even at high temperatures.
Grenaisol boards can be used not only as a safe material for the easy construction of your fire surround or insulation chambers of a tiled
stove, but also to help ensure adequate insulation, and all in one operation!
Grenaisol boards are manufactured in the following dimensions: 1000 x 610 mm / 800 x 600 mm; 30, 40 or 50 mm.
Dimensions
1000 x 610 mm / 800 x 600 x 30, 40 or 50 mm
Classification temperature
950°C
Density
430 kg/m3
Thermal conductivity at 200°C
0.203 W/mk
Compressive strength
1.2 MPa
Bending strength
0.4 MPa
Stress-strain diagram for determining the Grenaisol board thickness
in accordance with EN 18 892. Application: fireplace lining or tiled stove
construction. Grenaisol is used as a substitute for mineral wool insulation
in accordance with AGI Q 132.
22
32
20
30
18
28
16
26
14
24
12
22
10
20
8
18
6
16
4
14
2
12
0
0
0
2
4
6
8
10
12 14
Grenaisol [cm]
16
Example:
Necessary mineral wool thermal insulation (AGI Q 132)
Total insulation thickness (EN 18 892)
corresponding Grenaisol insulation board
18
20
22
Mineral wool (according to AGI Q 132)[cm]
and necessary external lining
Mineral wool (according to AGI Q 132) [cm]
Parameters
Stress-strain diagram for determining the Grenaisol board thickness
in accordance with EN 18 892. Application: fireplace lining or tiled stove
construction. Grenaisol is used as a substitute for external brickwork
and mineral wool insulation in accordance with AGI Q 132.
22
32
20
30
18
28
16
26
14
24
12
22
10
20
8
18
6
16
4
14
2
12
0
0
2
4
6
8
10
12 14
Grenaisol [cm]
16
Example:
Necessary mineral wool thermal insulation (AGI Q 132)
External walling
Total walling insulation thickness (EN 18 892)
corresponding Grenaisol insulation board
... 10 cm
... 10 cm
... 7,1 cm
3
18
20
... 10 cm
... 10 cm
... 20 cm
... 9,0 cm
22
0
insulation boards
1.
Ventilated rear wall
2. Chimney
3. Heat storage chimney system
4. Ceramic tiles
5. Fireplace
6.
Support
and insulation
construction
Ventilated insulation wall for heat storage stove
with Grenaisol boards
Heat storage stoves (tiled stoves) work on the principle of radiation. Warm air is emitted through the wall of the stove.
The fireplace is enclosed in a carcase of heavy storage material without any grids for ventilation. Warm air is stored inside and emitted
through the storage material.
In the fireplace shell the temperature is very high and not only the fireplace but also the right insulation of the wall has to be designed.
We recommend using a ventilated wall built with Grenaisol boards. This wall has been tested and guarantees a low temperature on the outer
side of the wall.
Recommended construction:
5 cm Grenaisol insulation board
5 cm ventilated air gap
5 cm Grenaisol insulation board
4
insulation boards
1. Insulated hose
for hot air
distribution
9. Double ceiling
2. Decompression grating
10. Supporting piece
(support under
the double ceiling)
11. Overlapping board
12. Grenaklebepaste
to glue the joints
3. Hot air outlet grating
4.
5. Gas flue
13.
14.
6. Fireplace insert
15.
stove fabric mesh
7. Fireplace
16.
universal fireplace and stove mortar
8. Cold air
suction grating
17.
fireplace and stove plaster
18. Coating
Fire surround construction
using Grenaisol boards
Build a fireplace surround using Grenaisol - structural and insulation board in one! Grenaisol board is completely harmless to health and
ecological. No dust particles or fibres are released from the board and no vapours occur even when the board is heated to high temperatures.
Grenaisol board is grooved on one side with a smooth surface on the other.
The grooving is designed to enable use of the best possible glue or plaster adhesives. When using the board as wall insulation, attach the
board with its grooved side to the wall. When applied to the outside of the fire surround, the grooved side should face outwards and be used
as a base for applying stove fabric mesh and plaster, or glue and ceramic tiles. Choose the Grenaisol board thickness which meets your
requirements - the thicker board (50 mm) provides better insulation, while the thinner one (30 mm) is suitable when you need to save space
inside the fire surround.
Use wood screws or staples to join Grenaisol boards and apply Grenapaste glue to all surfaces in contact with each other. All you need are
standard hand tools such as a fret saw, drill, rasp, etc. Grenaisol boards are very easy to work with.
Visit www.grenaisol.cz to find out more information or detailed instructions, or to place your order for the fireplace construction.
5
inspection doors
Grenacontrol
Inspection doors
Access door for stove surround
- For easy inspection of surround interior
- For access during technical inspections
- For easy replacement of damaged pieces
- For easy cleaning of surround interior
- Dimensions 500 x 400 mm / 400 x 300 mm / 444 x 220 mm
- Invisible system of opening
- Only 1.0 mm gap aroud the door - invisible door
- The same finish as the stove surround
- Easy installation in the stove surround
- Tested to high working temperatures
6
insulation boards
How to build
fire surround curves with Grenaisol Arcus:
1) Glue one part to another with Grena Klebepaste
around a form.
3) Cover the stove fabric with
stove mortar. Allow for a 50
mm (approx.) overlap at joints.
Allow the first piece to dry and
then prepare the next part of
the shape in accordance with
the above instructions.
90
R20
R20
≥R175
40
10
2) Fix the SilaTerm stove fabric
with steel staples. Allow for 100
mm extra at the top and on
one side plus a 50 mm overlap.
Grenaisol Arcus
Insulation boards
Grenaisol Arcus in dimension 40 x 90 x 600 mm is a design for creating an insulating curve. You can use it from 175 mm radius.
The Arcus interlocking profile ensures that you will not lose any insulation as with normal shapes like bricks.
Arcus saves time and material and increases the quality of insulation and fire surround.
Radius of curve > 175 mm
Packing: 15 pcs in cardboard box 21 x 26 x 61 cm
30 cardboard boxes on a palette (450 pcs)
7
4) After allowing all
parts to dry (approx. 24
hours) you can connect
the parts to each other.
Fix the fabric with steel
staples and coat with
stove mortar. Allow two
hours for the mortar to
dry, then apply stove
plaster and the same
colour paint as a
finishing coat.
insulation boards
Insulation of rear wall with Grenaisol boards
Grenaisol boards are glued with Grenaklebepaste direct to the wall
Are all materials and solutions really safe in your constructions?
• When you plan a chimney or stove construction you must realize that if the chimney passes through the surrounding structures
(ceiling, roof or wall), the construction details must be considered seriously. And especially if it is a modern structure containing
flammable materials and at the same time with regard to low-energy or passive standard buildings requiring Vapor whole structure.
Especially in timber frame construction buildings it is necessary to insulate walls behind a heat source.
Use Grenaisol boards with a minimum thickness of 30 mm. The boards can be covered with plaster or painted with interior paint.
We recommend using Silaterm scheme, which is designed for high temperature applications.
Grenaisol is easy to glue and cut.
145
30
46
46
Wall or ceiling
30
30
50
Mineral wool
80
30
Chimney
steel tube
50
Mineral wool
30
72
42
76
12
42
12
Chimney
steel tube
156
316
256
156
42
42
72
30
30
30
30
80
50
50
460
156
76
or
The depth of penetration can be adjusted to the wall thickness thanks to
the telescopic structure. The transmission is applicable to all common types
and chimney tube diameters and you can finish it with plaster or paint.
Safe for all types of structures.
8
(12 mm)
(30 mm)
9
Surface finish for Grenaisol
-Universal mortar up to 1100 °C
-Stove plaster, different particle
size 1-2 mm
-Easy and fast application
Grenaisol
Stapled stove fabric mesh on the surface
White 600 covering mortar
ST - H, Model or Finish stove plaster applied after 60 min
After 60 min apply paint
Surface finish
Stove mortars and plasters for applications with Grenaisol
Name of product
Description
Stove fabric mesh
Special stove fabric mesh for high temperature
White 600
White stove glue up to 600°C
ST-1 Stove plaster fine
Stove plaster with particle size up to 1 mm
ST-2 Stove plaster coarse
Stove plaster with particle size up to 2 mm
Tango
Setting retarder
Estimated quantity of materials for one stove surround
Material / product
Quantity
Grenaisol 1000 x 610 x 30 or 40 mm
Grenaklebepaste - glue
Silaterm - stove fabric
Silaterm - White 600
Silaterm - stove plaster
Grenacontrol - inspection door
25 pcs
6 x 1 kg
7 m2
1 x 25 kg
1 bag 20 - 28 kg
1 no.
10
Stove fabric mesh
Stove fabric mesh is fire-resistant up to 550°C. Surface and
material is specially developed for stove and fire surround uses
beneath mortar or plaster.
Normal fabric mesh is not resistant to high temperature and in a
few months will disintegrate and you will see small or bigger gaps
and cracks at the corners and in the stove surround joints.
When you use stove fabric mesh you can eliminate this risk.
1 x 10 metre roll size
Universal glue for high
temperature up to 1200°C
Grenaklebepaste is an inorganic glue which does not release any
fumes or flammable material at high temperatures
The glue is water-soluble
Both glued sides should be protected from water
Soiled tools can be washed in water
25 kg pack
25 kg / 5 kg pack
Model - stove plaster
White 600
White stove adhesive
Developed for gluing of second coat of storage stoves and as a backing
coat for stove fabric mesh under stove plaster or for ceramic tiles on
stoves
The setting time of the White stove glue is approx. 40 min
You can use it for all applications where it is not necessary to use stove
mortar.
Maximum working temperature is 600°C
Perfect adhesive for all types of materials
Very smooth and flexible
Resistant to sudden changes in temperature
Maximum thickness of application is 20 mm
Not suitable inside the fireplace
Modelling stove plaster which can be applied up to 50 mm thick
This enables different structures or smooth surfaces
Heat resistant up to 190°C
Does not degrade or change colour
No smell
Does not limit the spread of heat
Stable and no damage to surface when you use the Silaterm programme
Use it on a White 600 ground
25 kg / 5 kg pack
ST-H stove plaster
Stove coarse plaster ST-H is a finishing plaster developed for stoves
Contains aggregate size approx. 3 mm which gives a rough finish
Only ST-H is suitable for exterior use
Can be used for fireplaces in the garden or barbecues
Heat resistant up to 200°C and resistant to sudden changes in
temperature
Does not degrade and no colour change
Not necessary to paint it white
ST-H plaster is washable
No smell
Does not limit heat spread
Strong and very good adhesion to all building materials
Use it on White 600 ground
25 kg / 5 kg pack
Finish - stove plaster
Very smooth, brushable, designed plaster for stoves
The surface can be smoothed with very fine sand paper
Snow-white colour
Heat resistant up to 190°C
Does not degrade or change colour
No smell
Does not limit the spread of heat
Stable and no damage to surface when you use the Silaterm
programme
Use it on White 600 ground
11
File applications using Grenamat® boards:
Grenaboard®
fire-resistant
suspended ceiling
Grenamat®AL
smoke extraction duct
Grenamat®
steel protection
Grenamat®
fire-resistant air duct
Effective from 1. February 2014. Prepared by: Petr Řezníček Graphic design by: Ing. Aleš Obkráčil Approved by: Ing. Petr Novotný
Grenamat®
general information
PRAGUE
130 km
VESELÍ NAD LUŽNICÍ
Č s . a r m á d y 5 4 0 , 3 9 1 8 1 Ve s e l í n a d L u ž n i c í , C z e c h r e p u b l i c
Incorporated in the Companies Register under the regional court in České Budějovice, section B, number 484.
Phone : +420 381 549 113 Fax: +420 381 581 071 [email protected]
www.grena.cz
www.grenaisol.cz