What is insulation?

Insulation is material designed to prevent heat or sound from being transmitted from one area to another. It’s normally used to keep heat and/or sound in or out of your home, or to confine it to certain parts of your house. Insulation can work in a number of different ways, but it most commonly incorporates […]

Adding insulation to existing buildings

Insulation can be added to existing buildings with varying effectiveness and cost depending on the construction type and where the insulation is being placed. Ceilings and suspended floors with easy access are relatively simple to insulate post-construction. Insulation board can be laid beneath floor finishes if there is no under-floor access. Walls and skillion roofs […]

Where to install insulation

Roofs and ceilings work in conjunction when it comes to insulation. Install insulation under the roofing material to reduce radiant heat gain. Install insulation in the ceiling to reduce heat gain and loss. In most cases ceiling insulation is installed between the joists (see Insulation installation). To reduce the risk of electrical short circuiting, electrically […]

Insulation Types and their applications

Bulk insulation mainly resists the transfer of conducted and convected heat, relying on pockets of trapped air within its structure. Its thermal resistance is essentially the same regardless of the direction of heat flow through it. Bulk insulation includes materials such as glass wool, wool, cellulose fibre, polyester and polystyrene. All bulk insulation products come with […]

Choosing Insulation

Insulation products come in two main categories — bulk and reflective — which are sometimes combined into a composite material. For the many different products available see ‘Insulation types and their applications’ below. To compare the insulating ability of the products available, we need to look at their R-value, which measures resistance to heat flow. […]