How Does Roof And Loft Insulation Work

A mineral fibre material is laid between the joists and then over the joists in your loft or roof.

How does roof and loft insulation work.

To help you learn about the types of insulation which will be best for your home we have compiled this guide to roof and loft insulation which are a great place to start when insulating your home. How does loft insulation work. If you already have loft insulation you could still benefit from a top up. Cold loft insulation or popularly called loft insulation is a classic roof insulation technique which is simple as well as cheap.

We all know that hot air rises and it will easily escape through your roof unless you place something in its way. The insulation boards are placed in the space between the rafters in the loft and act as a protective layer against the cold outside whilst keeping the warm air inside. This thick material captures heat normally lost through the roof and stops draughts getting in. So how does loft insulation actually work.

Put simply loft insulation works by trapping the warm air inside your home and stopping it from rising through the roof. Heat insulation in buildings. Glass fibre or other loft insulation materials are laid across the loft to reduce the rate of heat transfer out of the roof see the picture below. This technique insulates over and between those wooden joists that can be found right above your ceiling in the top floor.

Loft insulation hot water tanks and hot water pipes. The materials used to insulate under the roof include batts of mineral or glass wool insulation held in place by battens of wood attached to and across the rafters alternatively polystyrene. Installing loft insulation is as simple as unrolling a rug. If it s installed in the right way it will still allow moisture to pass through it and therefore prevent condensation.

Loft insulation works by creating a barrier to the hot air which is rising from the lower levels of your house towards the roof. The roof insulation material will be cellulose fibre or mineral wool treated to make sure it s fire retardant. This should take just a few hours depending on the size of your loft. The rigid insulation structure provides a complete waterproof barrier and means that the rising warm air can t escape.

The space between the roof and the ceiling is called the loft. Glass fibre works as an insulator by traping air. How does loft insulation work if you ve got a flat roof. The air pockets in insulation trap that hot air and prevent.

The layer of insulation traps heat inside the rooms below the loft so the air within your property stays warmer for longer. How does loft insulation work.