Floor Screeding Lisburn Northern Ireland (BT27): When you are restoring your Lisburn property with uneven or damaged floors, or maybe converting a cellar or basement into a useable living space, a professional floor screeding company should be your first port of call. Before you're able to lay a suitable floor covering, whether it is tile, wood or carpet, the floor surface needs to be as flat as possible; which is why screeding a floor is often needed. If you would like your floors to last a long time then a floor screed is the most important factor in any renovation or building project.
FLOOR SCREEDING EXPERTS LISBURN
A reliable screeding contractor in Lisburn will have all the knowledge and experience to help you achieve a perfectly finished floor in whatever shape or size of room you're working on. They will be able to advise you about the correct type of screed your project requires, and how best to apply and install it.
A professional screeding contractor will also tell you if a structural engineer is necessary for your undertaking, in order to evaluate any flex strength, load requirements and point loadings that your flooring might need to conform with current building regulations and British Standards.
The skills and training that a screeding specialist brings to your project will guarantee a high quality outcome and help in extending the lifetime of your flooring. Picking the right screeding materials and the method of installation is vital if you want to end up with a durable and quality finish for your floor.
Before selecting a floor screeding contractor from the many operating in the Lisburn area, ask to what standard of finish they're basing their estimate, and also make sure that you get two or three quotations. For residential properties a quote will generally be provided for a Surface Regularity (SR) level of SR1 or SR2. SR2 and SR3 might be less costly options, however the floor screeding finish might have deviations and errors, whilst SR1 guarantees a pretty much perfect quality of finish. Any imperfections in the screeding (as might arise with SR2 or SR3) may cause problems in laying flooring due to flat spots, ridges, indentations in the surface.
The regulations laid down in the British Standards BS8204 have to be followed by any Lisburn floor screeding company and they must also hold accreditation with the manufacturers of any specialist screeding materials (Cemfloor, Gypsol, Flowcrete etc.) to demonstrate their safe working practices and competence. This accreditation scheme illustrates a firm's performance and training in the application of a manufacturer's product.
Commercial screeders in Lisburn will generally tackle larger screeding projects in factories, salons, schools, shopping centres, hospitals and warehouses.
TYPES OF SCREED
Standard Screeds - This is okay for everyday domestic usage and comprises a blend of cement and sand. The standard screed is a mix of five parts sand to one of cement. The standard flooring screed dries at a rate of one millimetre thickness per day.
Polymer Screeds - When a reduced thickness of floor is needed because of building factors, a polymer screed provides an extremely high strength solution to the situation. Maker's guidelines for setting times differ across the product ranges.
Self-Levelling or Liquid Screeds - Used to produce a high quality finish, especially in SR1 levels of screeding, by a cement and latex material. It's primarily needed to produce a clean, smooth floor over a poor quality or damaged substrate and results in a finish onto which all sorts of flooring materials can be laid. These can be as little as 1mm thick, and thanks to the latex polymers, will still provide a high strength finish.
Advanced Drying and Fast Drying Screeds - If there's a need to use the floor as quickly as possible a fast drying screed may be used. Drying at a rate of 3-7mm/day, determined by the specialised mix, they're usually a fibre reinforced screed and are great for flooring projects that have tight deadlines.
Industrial and Heavy Duty Screed - Designed for maximum strength and durability in places where traffic is high or heavy loading on the floor base is required.
Fibre Reinforced Screed - The preferred option where under floor heating is being installed in residential properties in Lisburn. This is due to the improved strength and protection against thermal shrinkage and cracking provided by the special fibres within the screed. At about one millimetre per day, it has a similar drying rate to standard floor screed.
SCREEDING PREPARATION AND INSTALLATION
Good preparation is vital for a quality finished screed surface that will be hard wearing and durable. Any paint, oil, debris and grease on the original floor level can adversely affect the adhesion of the screed, and must be removed.
Any cleansing chemicals that are used during this stage shouldn't leave any residues, and the floor base must be permitted to dry by itself naturally. If screeding over a cement or stone floor then all cracks should be mended to prevent them from "travelling" up through the screed layer and resulting in imperfections on the finished surface. During an on-site survey your Lisburn screeding installer will establish what preparation work is necessary before starting to work on screeding the floor.
Before the screeding can be poured a DPM (damp proof membrane) must be installed to protect the final flooring and screed from moisture damage. There may be 2 or 3 layers of different thickness polythene to act as a barrier between the insulation layer and screed.
If the area is susceptible to radon gas then an additional barrier is necessary to prevent the gas from entering from the ground. An air-tight membrane could be sufficient in areas with low emissions of radon, however in more extreme situations there may need to be a more complex extraction and ventilation system to block any harmful radon gas.
As soon as these stages have been completed the screeding company will apply a sealant or primer to the prepared base surface. Primers help with the bonding process and are specialist applications according to the type of screed that is being applied. Custom-made equipment such as airless sprays will usually be used to apply a primer or sealant, by professional screeding companies in Lisburn observing the manufacturer's guidelines.
This is the time that underfloor heating can be laid out in the correct manner and installed. The heating pipes and wires are securely attached to insulation panels to stop any movement and ensure they are positioned correctly. Under floor heating is one of the most efficient ways to heat a room and an expertly installed system will deliver even warmth all over the floor.
The screed can now be prepared in situ and applied to the base. The specific requirements of the room will determine the type of screeding that's used. After the pouring of the screed there is at least twenty four hours (for advanced and quick drying screeds) before you are able to walk upon the surface, and a 72 hour minimum drying time for the laying of any flooring materials. If you are hoping to wind up with a nicely finished and long-lasting floor surface you should stick to the manufacturer's guidelines with regards to heavy duty and standard screeds where this timescale will be longer.
The SR standard of your screeding can be confirmed once it's set enough to be walked upon. Using a 2m straight-edge the surface is examined for any dips, ridges and deviations in the surface of the screed.
- SR1 - Over the entire screed area, if there aren't any deviations of more than three millimetres from the straight-edge, you've got a top quality SR1 specification surface.
- SR2 - SR2 is the classification for normal standard industrial and commercial floors and can deviate from the straight-edge by up to 5mm.
- SR3 - For a utility area or room where the finish is relatively immaterial SR3 is the standard and has a maximum deviation measurement of ten millimetres or less.
If you need to check the floor for load bearing, a structural engineer is needed to conduct the testing. The testing will ensure your new screeded surface is suitable for the load bearing requirements laid out in the site survey. This can include what is known as a drop hammer test which assesses various aspects of the flexibility and strength of the screed. The precise measurement and testing tools mean this can only be conducted by a competent structural engineer following the British Standards BS8204 guidelines. (Tags: Screeding Lisburn, Floor Screeding Services Lisburn, Floor Screed Lisburn, Floor Screeding Lisburn).
There are a wide array of tasks that can be conducted by your local Lisburn floor screeding specialist including fast-dry screeds, acoustic flooring Lisburn, cheap screeding, shop screeding, garage screeding, warehouse floor screeding, residential floor screeding Lisburn, floor screeding tools, floor insulation, floor preparation, waterproof screeding, floor screeding, concrete pumping, bonded concrete floor screeding, cellar floor screeding, floor repairs, floor screeding advice, floor levelling, and more floor screeding tasks.
The Tools That Are Needed for Screeding Floors
- Floor Profiler
- Straight Edge
- Knee Protectors
- A Long Spirit Level
- Tape Measure
- Humidity Tester
Floor Screeding Near Lisburn
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If you would like to get local information about Lisburn, Northern Ireland look here
Floor screeding in BT27 area, phone code 028.