The Cambridge guide to Underfloor heating screeds, quick drying screeds and laying traditional screeds
Laying Floor screeds in Cambridge – Where do you begin?
When you apply a well blended mixture of Cement with graded aggregates and water to create a sturdy sub-floor base that’s capable of taking on a final floor finish or act as a final wearing surface, you are essentially, creating a screed floor.
Although laying screed might sound like a simple task, there is a lot more involved in screeding than just shovelling down a mixture of cement and sand. Without the correct skills to lay a screed floor in the right way you may find that problems will arise in the future with the quality, finish and durability of the finished floor.
While a screed floor laid in the right way will lengthen the life of the finished flooring laid down, screed gone wrong will drastically alter the quality of the floor and in turn this could lead to an expensive correction job which would be necessary needed to bring it back to an useable condition.
Nobody wants to have to face these sorts of problems further down the line, so allow us to guide you through a few of the most important essential steps of laying a screed floor in Cambridge.
How to achieve the best Cambridge floor screed:
- Choose the right Cambridge floor screed contractor
- Select the best floor screed for your requirements
- Getting in the mix – whats the process?
- Laying screed – are you doing it correctly?
- The protection of the finished screed floor
Choose the right Cambridge Floor Screeding Contractor
Always be certain that he team of Cambridge floor screeders you decide to use have:
- Extensive experience
- A work force with the necessary skills
- Modern equipment.
- Up to date with the latest technology
- Strong references or recommendations to prove their worth.
- Be sure that they will deliver on time and within budget
Select the best floor screed for your requirements
It’s important to get this bit right, but it can take time – look at what each floor screed offers. Will the one that you choose, meet your flooring requirements? If your not sure then you should be seeking some advice.
- Traditional sand and cement screed: A sand and cement mix with polypropylene fibres added and evenly dispersed throughout the screed mix so to minimise shrinkage and cracking. This screed is perfect for your underfloor heating installation projects and floated floors.
- Quick drying screeds/rapid set screeds: When a fast drying time is crucial you may want to consider rapid set screeds. These screeds can be covered with moisture sensitive finishes just one day after application. You must however, also consider that drying times will also be determined by contributory factors such as: humidity, temperature, mixing.
- Underfloor heating screeds/self levelling screeds Self-levelling screeds come into their own when used in vast industrial or commercial areas. Dry screed mix ratio is 1:3-5 = cement and sand. This is mixed with a water and a fibre additives to avoid cracking. Additional additives can be used ensuring a fast drying time. Self-levelling screeds also known as liquid screeds can simply be poured or pumped onto the area and it from that point it will spread and achieve the desired level by itself.
Getting in the mix – whats the process?
Screeders in Cambridge usually adhere to the following four methods:
- Hand Mixing: Ideal for very small areas, however, not recommended for large projects. The work is very strenuous, added to this the fact that the quantities will be estimated, it is easy for manual error to occur, seriously affecting the screed quality outcome.
- Free Fall Mixers: Sometimes used by Cambridge screeders where larger quantities of screed are required at the work site. Mostly Sufficient for mixing general concrete mixes and mortar of a fluid consistency, unfortunately screeds mixed by free fall mixers can be of a low unstable quality, crushing easily under impact.
- Forced Action Mixers: Forced action mixing is ideal when additives or admixtures are to be added.
- Ready Mix Screeds should always be the first choice when you are seeking consistent reliability in your screed flooring projects and for this reason, the team at Complete Floor Screeds only work with ready made batch products made in quality controlled plants. Thus eliminating the errors most associated with site mixed floor screeds.
Laying screed – are you doing it correctly?
This is one area where being meticulous about how you approach laying out screed floor will really pay dividends. Pre-planning and working through this list before you start should help you achieve this:
- Is the specification fit for purpose?
- Consider the substrate, has it been prepared correctly?
- Access/Egress – both suitable for screed installation, plant and materials?
- Is the building is watertight?
- Record the measurement down to finished screed level to ensure minimum and maximum depths are achievable and compliant with tendered nominal allowance.
- Running potable water available
- Waste facilities close to working areas.
- Mixing plant safe and suitable to use.
- Mix screed in correct proportion.
- Application of screed, laid in a sequential manner.
- Apply trowel cuts where necessary, controlling cracks.
- A tidy work area is important at all times.
The protection of the finished screed floor
This step us very important – your screed floor must be protected:
- No site traffic allowed for 24-48 hours – or more if possible, following screed installation
- Regulate heavy site traffic until installation of final finish
- Restrict the loading of heavy weights, unless agreed by a structural engineer
Complete Floor Screeders for all Floor Screeding in Cambridge
We hope that you have found this guide to floor screeding useful. Laying a screed floor is not difficult, however, you must pay attention to detail, as it’s the little things that can undermine a successful outcome.The team at Complete Floor Screeders in Cambridge are experts in floor screeding, concrete works and surface preparation. Our management team will ensure that all programmed works are carried out within a specified time limit making sure your programme stays on schedule, whatever the size of the job. Our portfolio is vast and ranges from large industrial projects, through to home extensions and renovations anywhere in the Cambridge area.