Pre-Cast Terrazzo Skirting
Pre-cast terrazzo skirting is an
integral component of a finished terrazzo floor. When installed it
provides a practical interface between floor tiles and wall
finishes.
The versatile nature of terrazzo allows Kengate to produce pre-cast
skirting to bespoke designs. This enables architects, designers and
contactors to coordinate the terrazzo installation efficiently to
help match or align with adjacent finishes.
The diagrams below illustrate three basic forms of pre-cast terrazzo
skirting. However almost any bespoke design can be achieved governed
only by the restrictions of the production process.
| FILE TYPE |
DRAWING No. |
DRAWING TITLE |
 |
KT CS 001 |
COVED PRE-CAST TERRAZZO
SKIRTING |
|
|
KT SI 001 |
SIT-IN PRE-CAST TERRAZZO
SKIRTING |
|
|
KT SO 001 |
SIT-ON PRE-CAST TERRAZZO
SKIRTING |
Terrazzo Floor Tile Build Up Details
Terrazzo floor tiles can be
installed in 3:1 sand/cement beds of varying depths to suit site
requirements. These depths are only governed by good practice as
noted in the British Standard Code of Practice.
Bed depths can range from the standard minimum of 40mm to the
advised maximum of 80mm. For depths in excess of 50mm it is
recommended that products such as D49 mesh supplied by ROM Ltd (www.rom.co.uk)
be installed to add reinforcement and maintain cohesion of the
bedding.
Where there is a requirement for bedding to be built up over 80mm,
for instance where a terrazzo-tiled floor is required to match the
height of an adjacent raised floor finish, it is recommended that
under-floor products be installed. A product such as heavy duty
polystyrene void former supplied by Cordek (www.cordek.co.uk) can be
utilised, the sand/cement bedding and terrazzo floor tiles then laid
onto this product after the overall required height has been
calibrated.
The diagrams below illustrate some basic terrazzo floor tile build
up techniques. More detailed technical information can be procured
from the National Federation of Terrazzo Marble & Mosaic
Specialists, (www.nftmms.co.uk) of which we are an active member.
| FILE TYPE |
DRAWING No. |
DRAWING TITLE |
|
|
KT SB 001 |
STANDARD TERRAZZO FLOOR
TILE BUILD UP |
|
|
KT RB 001 |
TERRAZZO FLOOR TILE BUILD
WITH REINFORCED BED |
|
|
KT VF 001 |
TERRAZZO FLOOR TILE BUILD
UP WITH VOID FORMER |
Pre-Cast Terrazzo Staircase Details
A most practical and popular use
of pre-cast terrazzo throughout the construction industry is as a
hard finish to a pre-formed concrete staircase.
The versatile nature of terrazzo enables designers, architects and
contractors to utilise its hardwearing physical attributes and
visually unique aesthetics when specifying a hard finish application
for a staircase.
Pre-cast terrazzo staircases can be produced to bespoke designs to
achieve site-specific requirements. For example, the colour and tone
of the treads and risers can be cast to match a chosen design or an
existing finish, treads can be produced with specific nosing inserts
requiring notches or rebates to be formed during casting process and
risers can be cast at an angle or rake to form a ‘kickback’ when
installed.
As with almost all pre-cast terrazzo products there is no specified
format, for instance treads and risers can be produced as separate
pieces or as single units where the riser acts as a downstand
attached to the tread, examples of this configuration can be seen on
many staircases in London Underground stations.
To suit site-specific situations varying types of nosing details can
be applied to the treads. For frequently trafficked stairs, such as
those within a London Underground station, heavy-duty non-slip
nosings are often used such as those supplied by
AATI (www.aati.co.uk). On less frequently trafficked staircases,
such as those within a commercial or high-rise office building,
where aesthetics are paramount it is often the case to use a range
of nosings such as those supplied by Gradus (www.gradusworld.co.uk)
who supply nosings in a varied range of styles and colours.
The diagrams below help to demonstrate the standard form of a
pre-cast terrazzo tread and riser, and also include a selection of
section details, which typify the versatility and bespoke design
potential of pre-cast terrazzo applied as a hard finish to a
staircase.
| FILE TYPE |
DRAWING No. |
DRAWING TITLE |
|
|
KT TR 001 |
TYPICAL PRE-CAST TERRAZZO
STAIRCASE |
|
|
KT NS 001 |
PRE-CAST TERRAZZO TREAD
WITH NON-SLIP NOSING DETAIL |
|
|
KT FN 001 |
PRE-CAST TERRAZZO TREAD
WITH FERODO INSERT STRIP DETAIL |
|
|
KT GN 001 |
PRE-CAST TREAD & RISER
UNIT WITH ANTI ANTI-SLIP NOSING |
|
|
KT ST 001 |
PRE-CAST TERRAZZO TREAD
WITH METAL INSERT STRIP DETAIL |
Terrazzo Movement Joint Details
It is a requirement in terrazzo
floor tile installations that movement joints be installed within
the finished floors to help alleviate the potential of cracks and
fractures forming due to structural movement.
As such movement joint products like those supplied by Donmini (www.donmini.co.uk)
are often installed to create ‘bays’ in the finished terrazzo floor
to absorb a certain amount of structural movement.
For higher tolerance requirements in floor areas where there are
large levels of movement, such as station platforms, structural
movement joints such as those supplied by Vexcolt (www.vexcolt.co.uk)
are often installed in the finished floor.
The diagrams below illustrate basic movement joint details. More
detailed technical information can be procured from the National
Federation of Terrazzo Marble & Mosaic Specialists, (www.nftmms.co.uk)
of which we are an active member.
| FILE TYPE |
DRAWING No. |
DRAWING TITLE |
|
|
VJ 001 |
TERRAZZO-TILED WITH
VEXCOLT STRUCTURAL MOVEMENT JOINT |
|
|
DM 001 |
TERRAZZO TILED FLOOR WITH
DONMINI MOVEMENT JOINT |
Pre-Cast Terrazzo Products
Pre-cast terrazzo products can be
produced to suit any number of requirements for a hard finish. The
versatility of terrazzo enables architects, designers and contactors
to utilise both its unique physical and aesthetic attributes for an
almost limitless number of uses and applications.
Where large terrazzo-tiled floors have been installed it is often
practical and beneficial to the design for adjacent feature walls,
upstands and columns etc to be clad in pre-cast terrazzo to either
match or contrast the terrazzo floor.
On pre-cast terrazzo treads and risers an interface is often
required in the form of a terrazzo finish to the staircase string.
In this situation pre-cast terrazzo can be used to achieve this.
The diagrams below illustrate both the unique decorative and
practical application of pre-cast terrazzo products in different
environments.
| FILE TYPE |
DRAWING No. |
DRAWING TITLE |
|
|
KT PC 001 |
PRE-CAST TERRAZZO
PILASTER CLADDING TO COLUMN BASE DETAILS |
|
|
KT WS 001 |
PRE-CAST TERRAZZO STAIR
STRINGER DETAILS |
|
