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External Wall Insulation
Not all properties have proper damp courses or may not be suited to cavity wall insulation, particularly older properties. External wall insulation systems offer thermally insulated exterior wall coverings and can be made of synthetic plaster or foamed polystyrene among other things. Many insulation systems for external walls are produced by the same companies that apply these renderings although they have to comply with certain standards in order to qualify as insulation systems. External wall insulation systems have to be a certain thickness and have a particular level of heat transmission factors in order to supply the required level of heat insulation. In addition to keeping in the heat insulating renders may also protect a property from damp and such systems are often used when a building needs a significant level of refurbishment.
External Wall Insulation Finishes
Different products will have a different look and may be light, medium or heavyweight renders and may be adapted to suit the requirements of individual customers or the needs of a particular building. Finishes may be textured or roughcast and some renders may be simulated brick or stone. Almost all external wall insulation systems come in a range of colours that are designed to fit with the general appearance of a building. If y9u plan on having external wall insulation then try to choose one that is the most sympathetic to your building’s style.
Insulating Wall Systems
Systems for insulating external walls are almost always applied by a qualified professional and are not suitable for do it yourself rendering projects. Some systems may need to have colour added once they have been applied to the walls and had time to dry out. Any type of rendering is always best done during favourable weather conditions as damp weather in particular can cause application problems and may make it harder for the product to adhere properly to the walls underneath.
Benefits of External Wall Insulation
Most rendering systems have some benefits but external wall insulation is probably the most beneficial system available. Unlike traditional cement renders, which may also have had a couple of coats of masonry paint, systems for external wall insulation are generally lighter which allows the material underneath to shed excess moisture, thus avoiding the problem of rising damp. As well as preventing excess heat loss, external wall insulation can also have benefits in giving some noise insulation. Properties that need refurbishing and which may have some serious cracks and defects on the exterior walls usually benefit from external wall insulation systems.
Rendering systems with insulating properties are good in areas where the weather conditions are bad as these systems provide extra protection against bad weather. Insulating rendering systems help to conserve energy and will generally come with a warranty for a specified period as these usually provide durable, architectural structures. External wall coverings that also provide insulation may be suitable for newer buildings as well as refurbishments as they conform to the latest building regulations and often reduces the level of exterior maintenance required on your home.
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