Loft Insulation

What is loft insulation?

Loft insulation is like a blanket for your home. Mineral fibre wool is laid between the joists along your attic floor or on the rafters that support the roof.

It improves the thermal efficiency of your home by slowing down the loss of heat to the outside which helps you keep your home warmer in winter and cooler in summer.

The placement of your insulation will have an impact on the temperature of the loft itself – insulation between the rafters will keep your loft cool, whereas insulation placed between the rafters keeps the loft a similar temperature of your home.

Loft insulation will last for up to 40 years and, due to its inexpensive cost, will pay for itself in fuel bill savings many times over.

How thick should loft insulation be?

270mm (10.5 inches) is the recommended thickness of loft insulation.

The government’s recommendations for the thickness has increased over the years, therefore if you have pre-existing loft insulation, it may not be the correct depth and should be topped up.

This recommendation represents good value for money, with the balance between cost of the insulation and potential savings taken into account.

Installing loft insulation

It is possible for someone proficient in DIY to install loft insulation providing the loft layout is easy to access, there is no damp issues, joists are regularly spaced out, and the roof isn’t flat.

If this isn’t the case an accredited installer is highly recommended. In addition, you may be able to access government funding for your loft insulation if you meet certain eligibility criteria, which in some cases covers all the costs.

Funding for loft insulation

YESwe can provide access to funding for loft insulation as well as industry accredited installers to complete installations.

Our friendly advisors can take you through the eligibility criteria to determine whether you can receive funds from the Government’s Energy Company Obligation (ECO) scheme.

Is my home suitable for loft insulation?

If you have access to you loft and it isn’t already insulated, you are likely to be able to install loft insulation which will help you save money on your energy bills.

Even if you have some loft insulation (under 100mm), it may be possible to get this topped up to the recommended thickness of 270 mm which provides the best efficiency in relation to the cost.

Loft insulation is an affordable energy efficiency measure that acts like a blanket that will keep heat in your home.

You can fit loft insulation and still use your loft for storage

Building extra rafters and boarding can allow you to store items in your loft.

The rafters are fitted above the insulation to provide a storage option.

Items should not be placed directly onto loft insulation as this can flatten the mineral fibre wool and reduce its insulating effect.

If you have a small amount of storage and would like to keep it, installers will work round this as long as the space is less that a third of the loft area.

Insulation can be fitted even if the loft has a low ceiling

Lofts that have limited head room can still be insulated as installers don’t need to be able to stand up to complete installations.

It is common for installers to stick to a minimum height of approximately 1.5m – most lofts are above this.

I have a room instead of a loft

If you use you loft as a room then your property will not be suitable for loft insulation.

However, you may be able to install room in roof insulation as an alternative.

What is room in roof insulation?

Installing room in roof insulation involves insulation boarding being fitted in between the rafters underneath the existing plasterboard walls.

Room in roof insulation works by trapping heat within your home to create a blanket effect.

This allows you to more easily maintain a warm home without using as much energy to do so, saving you money on your energy bills.

What are room in roof insulation boards made of?

The insulation boards used are usually made from polystyrene or polyurethane which are effective materials for trapping heat.

The boards are rigid and can be cut to correct sizes to create a barrier to stop heat escaping.

They can then be plastered to create an aesthetic finish for your room.

What are the benefits of room in roof insulation?

  • It keeps converted lofts warm and cosy, making them more comfortable.
  • Prevents heat escaping through your roof to help maintain throughout your home.
  • Reduces your energy bills as you need to spend less as your home will stay warm for longer.
  • Increases the value and desirability of your home.

What if I don’t have a loft conversion?

If you have a loft that is not used as a living space then loft insulation may be a better option for you.

The most popular form of loft insulation consists of rolls of mineral wool placed on the flooring of your loft.

Is my loft conversion eligible for room in roof insulation?

If you have converted your loft into a living space, it is likely to be eligible for room in roof insulation, however there are some restrictions.

To determine whether your loft conversion is can be installed with room in roof insulation a pre-installation survey can be done.

This will also help you to choose the correct insulation for your home.

What are the requirements to have room in roof insulation installed?

  • There must be stairs leading up to it which are accessible enough to be able to walk down facing forward – this does not include ladders.
  • The room can’t be classified as an additional storey as this won’t count as a room in a roof. This means that 50% of any vertical walls shouldn’t be higher than 1.8 metres.
  • Adequate ventilation must be present to avoid a build up on condensation.
  • The roof needs to be in an inhabitable condition with no presence of damp, mould, rot, flaking timbers or unreliable electrical connections.

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