User manual

over underfloor heating, solid wood boards
will be subject to higher levels on movement
than engineered boards. The wider the board,
the higher the potential movement will be.
Underfloor heating dries the boards and
this can cause shrinkage. Conversely the
dry boards can absorb moisture when the
heating is turned off which can cause the
boards to swell. As the risk of movement
is so high in these boards, we do not
recommend the use of Fired Earth solid
wood boards with underfloor heating
systems.
b. Engineered Boards
Being a laminated, multilayered and cross
grained product, engineered boards are the
least sensitive to the affects of moisture
change, and therefore the drying effect of
the underfloor heating.
If, once the risks have been considered and
engineered boards are to be fitted at your
own risk over underfloor heating, the
following fully bonded installation system
is advised.
1. Screeds must be fully cured and
suitably dry.
2. The heating should be fully commissioned
and have run continually at its normal
working temperature for a minimum of
4 weeks. The temperature should then be
reduced to approximately 15ºC prior to
fitting the boards.
3. Boards should be acclimatised.
4. Apply Sika Primer MB as instructed by
the manufacturers.
5. Using Sika T54 fully bond the
engineered boards to the prepared floor.
DO NOT glue the tongues and grooves.
Allow the adhesive to dry/cure thoroughly.
6. Once fully cured the heating should be
turned up slowly increasing the
temperature of the heating by no more
than 5
o
C in 24 hours until the normal
operating temperature is reached. The
floor temperature should not exceed 26ºC.
16 17
Timber Floor
Concrete
SikaBond T54
Trowel size
Normal Cleaning
Brush or vacuum all dust or dirt off the
surface. Individual marks and spillages
should be wiped off immediately using
a damp cloth. Do not allow moisture
to remain on the floor.
The floor should be cleaned with a Fired
Earth Mop dampened with a dilution of
Fired Earth Soap and water. Dilute 250ml of
Fired Earth Soap with 10 litres of warm
water. Use a second bucket for rinsing out
the dirty mop and change the water
regularly. This will prevent mopping dirty
water across the floor and avoid
unnecessarily wasting the Fired Earth Soap.
Thorough Cleaning
If the floor is particularly dirty or stained,
use Fired Earth Wood Cleaner. The product
should be applied with a mop dampened
with a dilution of Fired Earth Wood Cleaner
and water. Dilute 1:20 of Fired Earth Wood
Cleaner with warm water. Use a second
bucket for rinsing out the dirty mop and
change the water regularly. This will prevent
mopping dirty water across the floor and
avoid unnecessarily wasting the Fired Earth
Wood Cleaner. Allow the solution to stand
on the floor (do not soak the floor) for
about 5 minutes so it can soften the dirt. If
necessary scrub the floor to remove the dirt.
Mop up the emulsified dirt drying the floor
with the Fired Earth Mop as you progress.
Maintenance Cleaning
As a guide oiled floors need maintenance
once a year in domestic situations. Kitchens,
bathrooms commercial applications etc will
probably be more often. All oils will degrade
with washing, spillages, grit, dirt, UV light
and general wear and tear. Therefore it is
necessary to replenish the seal/finish to
maintain the protective and aesthetic
qualities of the floor.
First, the floor must be cleaned with Fired
Earth Wood Cleaner. Once the floor is
clean, leave to dry for 4–8 hours.
Maintenance Oil is then poured onto the
floor and spread evenly and uniformly
along the grain of the wood working it into
the timber. As the wood is already sealed it
does not need to absorb large quantities so
keep the application light and work it well
into the grain so it quickly appears silky
matt. Shiny or wet looking areas indicate
excess oil which should be removed
immediately with a fluff free cloth.
Polishing the floor with a Fired Earth Floor
Polisher hardens the oil more quickly so
immediate foot traffic is possible.
Otherwise do not get any water onto the
floor for 24 hours and keep traffic as light
as possible.
WARNING - OIL IMPREGNATED CLOTHS
AND OTHER COMBUSTIBLE MATERIALS
MAY SPONTANEOUSLY COMBUST -
DISPOSE OF BY BURNING OR BURYING.
Cleaning and Maintenance
Notch size?
Choose a suitable
trowel depth for subfloor
Sika Full Bond Application