Underfloor Heating

With the correct installation and by following the guidelines below, our flooring will work perfectly with an underfloor heating system.


  • The new UFH system should be fully commissioned and have run at least a full cycle. If necessary Silvan will require a written report stating the system has been successfully tested.
  • The temperature should then be reduced by 3°C – 4°C per day until the UFH system is ticking over at its lowest level.
  • The temperature should remain at this lowest level for at least 72 hours prior to installation/timber delivery and for the duration of the installation.


  • The floor should be left for 2 – 3 days to acclimatise to its new surroundings and for the adhesive to fully cure. The heating should then be increased gradually by 1°C per day from the prevailing ambient temperature. It must not be turned on to full straight away.
  • The method of gradually increasing and decreasing the temperature should be followed in the day to day running of the UFH system.
  • The maximum water or electricity temperature should not be greater than 50°C. The maximum temperature at the underside of the timber should never exceed 26°C.
  • This will give a surface temperature of 20°C – 23°C.
  • It is vital that the timber flooring is not overheated. It is recommended that thermostatic probes are installed at various points over the floor area to ensure this does not happen. The effects of overheating can seriously damage the floor ie. de-lamination, cracking and shrinkage.
  • Relative atmospheric humidity should be maintained between 40 – 60% using a humidifier or climate control system if necessary.
  • The heating system should be run in strict accordance with the manufacturer’s instructions.
  • The occupier should be aware of leaving solid furniture and/or heavy rugs in one position for any length of time. If the flooring is ‘capped’ in this way the wood may be affected by excessive heat which cannot escape normally.

Trusting these simple factors are followed, your beautiful wood flooring will retain its original look and character for years to come.

Why Engineered Flooring?

Due to its many benefits and flexibility of it's installation, engineered flooring is the most common type of professional flooring used today. The finished plank consists of several layers of real timber that has been compressed to form one complete plank. The layers are positioned to run in different directions, creating an extremely stable base compared to solid wood.

This production technique gives a long lasting and very durable finish, and has very few limitations where it can be successfully installed, as it can be laid over a concrete base, in basements or where underfloor heating is to be used. Over a period of time, and depending on use, real wooden floors will age and develop a character all of their own. Unlike traditional wooden floors, engineered floors can be maintained and repaired in a number of ways to ensure the longevity and original beauty of the floor is retained.

Additional added benefits of the engineered system is the number of finishes and textures that can be achieved. Through the use of waxes and oils, any number of colours can be achieved and, if required, a unique and bespoke finish can be produced to work in harmony with a specific interior colourway or design. Varying degrees of textures can be engineered into the surface, again adding character and a stunning look to each floor.

Wood Grades

All of our flooring is manufactured at our mill in the heart of rural Leicestershire, England, with every piece being sourced from sustainable forest throughout the UK, Northern France and Southern Germany.

Our timber is sorted according to the growth and storage characteristics typical to each individual wood. We base these evaluations on the draft prEN 13629:1999.


As a rule this follows the German industrial standards (DIN) description of 'rustic' with characteristics which are typical for the type of wood and its appearance. In extraordinary format sizes it is not possible to avoid fluctuations in growth, colour, end splits or clear cut growth such as sap and heart wood, resin canals and knots. These attributes are professionally reworked and are not faults.

This grade features a low number of knots and depending on the type of wood, pale/dark contrasts. We also undertake additional minimal correction by hand of small fissures and knots, which are common in the growth and character of these woods. Character grade has less splits and knots than Rustic and has virtually no sapwood.

Harmony is the middle grade of timber. It shows less knots and significantly less splits than Rustic and has virtually no sapwood.

In comparison to Harmony Grade, Harmony Grade Plus features some small pin knots, but has no splits and no sapwood.

As a rule, Character grade is used to create this individual finish. A unique drying process this produces a stunning textured or embossed surface. Knots and shakes can be exaggerated and professionally reworked to specific requirements.

Widths and Lengths

Silvan pride ourselves on manufacturing the very best engineered wooden flooring. As all our flooring is manufactured and finished on site, we have complete control over the quality and options available and offer an unparalleled service, supplying your finished floor in a variety of sizes, from widths of 150mm – 600mm and in lengths up to an incredible 15m.


  • All our timbers are European species labelled FSC®  or from a sustainable source.
  • Tongue and grooved on all four sides.
  • Certified birchwood throughout plywood base.
  • Manufacturing tolerance in width/length +/- 1.0mm.
  • Micro bevel or round bevel of 0.5mm.
  • Moisture content when leaving mill approximately 7-9%.
  • Brinell hardness of oak – 5.5mm – 8mm wear layer 3.4-4.1 Janka scale: 1360 medium hardness.
  • Thickness and top layer – As per specification/quotation.
  • Finish – Oil: Various manufacturers. Lacquered finishes can be requested. Silvan acknowledge that technical and safety information is required (Technical data and COSHH sheets can be provided), however, to prevent design infringement we reserve our right to withhold brand names.
  • Adhesive: The dispersion glue used as an adhesive on our multi-layer elements contains no gaseous substances, and is free from solvents, Formaldehyde, Polychlorinated Biphenyl (PCB), Pentachlorophenol (PCP), Lindane, asbestos or other dangerous substances which evaporate over a long period of time.
  • No pack size. Quantity based on m² amount required plus waste.
  • Lengths specification to allow 10% shorter lengths than quoted.
  • Manufacturing is in accordance with current EN regulations.
  • Fire category EN 13501 CFL-Si.

Maintenance Guide

As with all quality hardwood floors, a maintenance regime is required to keep the wood in perfect condition all year round. Regular use of appropriate cleaning products will help to maintain the finish. Dependent on use and conditions, the floor may also occasionally need to be re-oiled. If required, our engineered floors can also be re-sanded to recondition or repair the floor to its original beauty.

  • Dimensionally stable product. Wood is hygroscopic and is continuously active in balancing out the humidity levels within it's environment both in the air and the ground. It is important to maintain a constant relative humidity level of between 40 – 60% throughout the year.
  • Can be laid over underfloor heating (recommended guidelines required).
  • K-Value – 0.17. This is a measure of thermal conductivity.
  • R-Value – 0.12. This is a measure of thermal resistance.

Environmental Policy

Silvan Floors are committed to providing a quality service in a manner that ensures a safe and healthy workplace for our employees and minimises our potential impact on the environment. We will operate in compliance with all relevant environmental legislation and we will strive to use pollution prevention and environmental best practices in all we do.

We are therefore committed to reducing our environmental impact and continually improving our environmental performance as an integral and fundamental part of our business strategy and operating methods.

It is our priority to encourage our customers, suppliers and all business associates to do the same. Not only is this sound commercial sense for all; it is also a matter of delivering on our duty of care towards future generations.

We will:

  • Integrate the consideration of environmental concerns and impacts into all of our decision making and activities.
  • Wholly support and comply with or exceed the requirements of current environmental legislation and codes of practice.
  • Promote environmental awareness among our employees and encourage them to work in an environmentally responsible manner.
  • Train, educate and inform our employees about environmental issues that may affect their work.
  • Reduce waste through re-use and recycling and by purchasing recycled, recyclable or re-furbished products and materials where these alternatives are available, economical and suitable.
  • Promote efficient use of materials and resources throughout our facility including water, electricity, raw materials and other resources, particularly those that are non-renewable.
  • Avoid unnecessary use of hazardous materials and products, seek substitutions when feasible, and take all reasonable steps to protect human health and the environment when such materials must be used, stored and disposed of.
  • Operate and maintain company vehicles with due regard to environmental issues as far as reasonably practical and encourage the use of alternative means of transport and car sharing as appropriate.
  • As far as possible purchase products and services that do the least damage to the environment and encourage others to do the same.
  • Assess the environmental impact of any new processes or products we intend to introduce in advance.
  • Address complaints about any breach of our Environmental Policy promptly and to the satisfaction of all concerned.
  • Where required by legislation or where significant health, safety or environmental hazards exist, develop and maintain appropriate emergency and spill response programmes, communicate our environmental commitment to clients, customers and the public and encourage them to support it.
  • Strive to continually improve our environmental performance and minimise the social impact and damage of activities by periodically reviewing our environmental policy in light of our current and planned future activities.

Quality Assurance

At Silvan, we take our quality control very seriously. We continuously monitor our products and the efficiency of our process, investing in new machinery and technology to maintain consistency at every stage. This attention to detail has earned us a reputation that is second to none in the UK and Europe. Our mill works to the recognised quality assurance standards and through the use of modern technology achieves the best possible results from the selected natural wood species.

Key points that are monitored include adhesion, abrasion and scratch resistance, water resistance, resilience to impact and consistant finish levels.

Each piece of raw material is checked for quality on arrival, and this meticulous process is followed through at every stage of production, right through to the packing and shipping of the finished floor. Our skilled staff are dedicated to the business and to maintaining our standing and reputation within the industry. We continually encourage our people to look for ways of improving the production process and to minimise defaults, as well as new ways to create exciting and unique colours and finishes.