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| Finishes and Service Runs |
Further to the information provided here you may wish to visit the www.construct.org.uk website.
CONSTRUCT also have a list of UK locations where you can view display panels with the different surface types and finishes.
We have also reporduced the Concrete Advisory Services' Data Sheet on "Concrete Surfaces for Painting" click on the link to read and download the PDF document.
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• Floor finishes
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Ceiling finishes
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Ceiling fixings
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Horizonal services
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Vertical services
OTHER
PAGES
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PS Hollowcore illustrations
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RC Hollowcore illustrations
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Beams and block illustrations
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Building regulations
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Concrete Advisory
Service Data Sheet
| Floor Finishes |
The grouted precast floor provides a firm working platform for following trades and is a suitable base for either sand / cement screeds or timber finishes.
Where beam and block floors are required to take heavy point loads, e.g. domestic garages, a 50mm minimum thick sand / cement screed is recommended, reinforced with A98 fabric.
If there is a need to meet Building Regulations’ Sound Insulation requirements, additional screed may have to be applied to certain types of precast floor to increase the mass of the floor base.
As all prestressed floor units are cambered, levelling screeds or packing may be required when laying floating finishes.
Milbank Reinforced plank floors are not cambered.
| Ceiling Finishes |
Directly
applied
Textured
paint finishes, or plaster finishes may be applied to Hollowcore planks
in accordance with the manufacturer’s instructions. Plaster manufacturers
may require the use of a bonding agent.
Suspended
ceilings
Plasterboard manufactures have developed ceiling fixing systems using
galvanised metal channels and hangers that can be fixed directly to the
soffit of all types of floor. These fixing systems may be used instead
of timber battens.
Milbank Reinforced Hollowcore Planks are manufactured on high quality steel pallets giving a "Type A" Soffit finish.
| Ceiling Fixings |
Proprietary site drilled anchor systems are suitable for fixing suspended ceilings, and when installed to the manufacturer’s instructions, these provide a simple and economic fixing method.
Anchor fixing systems can be suitable for suspending disabled persons hoists.
For Beam and Block floors, galvanised ceiling clips are available, specifically designed to be installed after the Beam and Block floor has been laid, so that they cannot be displaced when the floor is grouted.
Shot firing of fixings into prestressed concrete is not recommended.
| Horizontal Services |
The essential services for a modern dwelling including plumbing, central heating, lighting and power circuits, etc, can be accommodated in ducts within the floor finish or the suspended ceiling void.
Larger services such as waste pipes can be run in skirting ducts around the perimeter of the floor.
Timber
finishes
Timber
battens can be fixed directly on top of the precast floor, or supported
on spacers. Services can be run between the battens.
Screeded
finishes
The
screed should be deep enough to bury insulated pipework and conduits for
electrical wiring.
| Vertical Services |
Hollowcore
planks
Small holes up to 100mm in diameter may be drilled on site through the
cores in the planks.
Other holes such as for soil pipes etc, may be formed during manufacture of the units, or subject to the design capacity of the unit, may be cut on site. Large openings for services or roof lights are normally trimmed with steelwork.
Beam
and Block
Drilling through the block can accommodate smaller openings, whilst larger
holes such as soil pipes etc, may be formed by removing floor blocks.
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