Boards should be laid over the joists if the loft or attic is to be used for storage. Insulation will not be thick enough if you insulate only between the joists.

This material reduces the sound transference significantly when it is used within walls, attics or roofs, as well as floors, in comparison with fibreglass, rock wool, and polystyrene board. Its dense composition and the application process creates an entirely airtight environment. It blocks sound from outside, including traffic, pedestrianised streets, and areas near airports.

It also prevents sound generated from within a building from reaching adjacent floors or the floors below them. Spray foam insulation could reduce the amount of noises generated by structures such as running showers or washing machines.

Spray foam insulation, which is flexible and packed with millions of tiny air bubbles, absorbs vibrations from the floor and wooden members. It also inhibits sound transfer through the floor. Spray foam insulation reduces airborne noise transmission by sealing all cracks and crevices.

Spray foam insulation is also effective in dampening, if no longer completely eliminating, any sounds that might be emanating from a floor like water running through pipes. It surrounds pipes securely, preventing them rattling. It also eliminates the sound caused by hot water flowing through pipes. The heating system heats wooded Joists, causing them to expand, creak and groove.

It also stops heat escaping from the upper floors. Lower floors become cooler which, in turn, requires more heat. Upper floors then become too hot.

If your loft is easily accessible and does not have condensation problems, insulation should be straightforward.

Uninsulated homes lose 25% of their heat through their roofs. Insulating your roof, attic, and loft is a good way to reduce heat loss. It will also reduce your heating bill.

If you have access to your loft joists and it is easy to use, mineral wool insulation rolls can be used. The insulation is first laid between horizontal beams called joists. Once that layer has been laid, another layer of mineral wool insulation is added at right angles.

To ensure sufficient insulation, raise the floor height so that you can place enough mineral wool below the new floor. You can install timber battens on the floor joists. Or, you can use purpose-built legs made of plastic that fit on the leg and support the floor. You should leave enough air space between insulation layers and boards to prevent condensation.

You should not squash the mineral wool while you place the boards on top. This will decrease its insulation value.

Insulation stops heat from escaping to living spaces. If your loft is not cool enough, it could make existing damp or condensation worse. Do not forget to improve ventilation if loft insulation is being installed by you.

The insulation can be fitted between and over the roofing rafters, which are the flat timbers that support the roof. You can either use rigid insulation boards which are cut precisely to fit your loft, or spray foam insulation between the roof rafters.

Some companies might offer to repair your roof if it is damaged or leaky. They will spray foam insulation directly onto the roof’s underside without fixing the problem. This is not something that we recommend. Like any type of insulation you should ensure that your roof is in good repair before adding insulation.

If you would like to use your loft’s roof space as a heating room, then you should take a different approach and make a separate room.

If you’re planning on using your loft as a living room, or it’s being used already, make sure all walls and ceilings that divide a heated and unheated space have insulation.

The air needs to move freely through your house in order to keep it fresh, dry and healthy. Installers who are skilled will make sure that you don’t block or seal off any ventilation. Do not cover any grilles, vents, or airbricks if you do DIY insulation.

If the loft is not easy to access, a professional can install blown insulation. This specialist will use special equipment that can blow insulation into difficult spaces. They can use mineral wool fibres or treated cellulose or polyurethane.

Flat roof insulation can save you as much on heating costs than loft insulation. The extent of the flat roof on your property will impact how much savings you receive.

You can probably insulate your loft yourself if it is accessible and does not have damp problems. For those cases when damp is a problem or a more complex insulation system, professional installation should be done.

Cooler air could cause cold draughts to enter your loft hatch due to insulation. You can prevent this by fitting an insulated loft hatch, and placing strips of draught-exclusion material around hatch edges.

Insulating your ground floor can help you keep your home warm and reduce your carbon footprint.

Insulating a loft in your home is one of most cost-effective ways to reduce heating bills. Even if your loft already has insulation, you need to ensure that it is effective.

Loft floor rolls are the traditional choice. These roll out along the loft floor. They are much easier to lay than insulated floors boards. They are available in loose and encapsulated rolls (blanket) and can be used for both top and bottom layers. You can use stilts or boards to board them. This will create a raised platform that is suitable for storage.

These are not recommended items or tips that were included in the list of tools and materials. You should ensure that you’ve read everything before you begin to insulate your loft.

While insulation may be present in most homes, it may not have the right level of effectiveness. This could happen if the insulation isn’t topped up regularly or has been compressed by storage board. Sometimes, loft floors can be as small as 25mm in depth for older properties.

It’s not necessary to remove loft floor insulation. To achieve the recommended amount, you can just add one or several layers to it. We will discuss how much to recommend in the next section.

The spacing of your loft floor’s joists will determine the width roll you choose. This is because the insulation rolls between these joists. We recommend selecting one that is close to your joist spacing. It will reduce the need to trim.

The insulation’s required thermal resistance. If you only want to lay loft rolls, there is an alternative method that measures the insulation thickness. For more information, see the section ‘How do I calculate the thickness of loft floor insulation?