Applications

Keep the patio deck in shipshape and the garden shed free from decay with the Roxil Combination Preservation and Protection System. Between dodgy weather, wood-boring insect attack and algae growth, the wooden elements of your garden are under threat from moisture, woodworm and invisible fungal spores.

Wet rot is the term used for many types of common wood-eating fungus. Wet rot grows on and attacks untreated timber with high moisture content. Before waterproofing garden timber, discover how to prevent and treat wet rot with biocidal protection as well as carry out wood rot repair. Wood is one of the oldest construction materials on the planet. The…

The BRE guidance document, BR211 describes two levels of radon protection: basic radon protection and full radon protection. 

The Building Regulations (section C2) require that, “precautions shall be taken to avoid danger to health and safety caused by substances found on or in the ground to be covered by the building”.  One such substance is the radioactive gas, radon.

In radon-risk areas basements can be found to contain particularly high concentrations of radon.  This is because radon gas is heavier than air and will therefore have a tendency to accumulate at the lowest level of a building.

Energy-saving retrofit is the process of installing and/or replacing parts of an existing building in order to make it more energy-efficient. They can be carried out for many different reasons; to ensure the longevity of the building or structure, to reduce the long-term operating costs of heating and cooling, or to reduce the level of CO2 emissions as a result…

In most cases piled retaining walls do not provide adequate resistance to water in their own right so a waterproofing system will need to be applied on top.

It is possible to construct floor slabs from waterproof concrete complying with BS 8007. However to achieve this grade, a considerable amount of extra steel reinforcing is required, greatly increasing the cost of the slab. An alternative approach is to use standard concrete of the required strength in conjunction with a coating or membrane to protect the slab from water…

The waterproofing of concrete-piled foundations presents a problem for many waterproofing systems – particularly those based on sheet membranes. The majority of these systems cannot be used over pile heads and pile caps because they do not have the bearing capacity to support the applied load.

Construction joints are a particular weak points in basement structures through which water can penetrate. Therefore, joints between components, including day work joints, should be durable and watertight and include appropriate waterstops (Vandex Expaseal) or hydrophilic strips. Kickers, usually cast as part of the slab, should be used to form the joint between floors and walls (NHBC Chapter 5.4).

Basements are susceptible to the ingress of moisture and contaminants from the ground. For this reason, a waterproofing system will usually be required. Guidance on the requirements for basement waterproofing systems is given in BS 8102:2022 “Code of practice for protection of below-ground structures against water from the ground”.

Wall ties are used to join the internal and external walls (or leafs) of a cavity wall and are installed during construction. Over time these wall ties can corrode and require replacement – particularly where ungalvanised or inadequately protected steel wall ties have been used.