Attic Insulation

Attic wall insulation is one of the first steps toward a warmer house for British homeowners.

It is always easy to tell if the attic of a building isn’t insulated because you will spot the pigeons and seagulls enjoying the warm air coming up through the roof. The heat rises up and escapes through the attic, and those birds take advantage of it right away.

What’s In This Guide?

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Attic & Loft Insulation, What Is It?

It’s a layer of insulating material installed within your attic-floor room. Usually, it is installed either between the joists or rafters. The joists are horizontal beams that are laid along your attic floor, and the rafters are the angled beams supporting the roof.

With both methods, you will be able to reduce the heat transfer between indoors and outdoors which will help to keep your house warmer in the winter and cooler in the summer.

Attic Insulation: The Benefits

The main loss of heat from a home is through an uninsulated roof. So if you wish to improve the comfort and energy efficiency of your home, installing insulation in your roof space or attic is an excellent option.

There are more benefits:

  • A reduction in home heating bills.
  • Reduced carbon footprint.
  • A greener & more energy efficient house.
  • Improved EPC rating.
  • Increase in home equity.

How Much Will Loft Insulation Save Me?

The numbers in the table below indicate the advantages of insulation in your attic or loft (depth 270mm).

The numbers in both tables are estimated for an average home using gas heating. The installation costs are an average estimation and will vary from home to home.

By using a registered insulation installer you can avail of two grants, one from the SEAI and the other from Electric the UK.

What Are The Costs?

Attic insulation varies in cost depending on the type of property. But a 3/4 bedroom semi-detached house attic often costs as little as £300 with the grants. This includes pipes walkways and tanks as needed.


Which Type Of Insulation Is Best For Your Loft Or Attic?

The best type of insulator for your attic depends on the structure and build of your house.

Ceiling Level Insulation

Houses with pitched roofs and an empty attic space can be insulated with special quilted blankets layered in opposite directions. A pricier alternative is blown fibre or spray foam insulation.

Rafter Level Insulation

In houses where the attic has been converted to a living space, insulation is installed between the rafters and the roof keeping the living space warm. Depending on your home, you may want to combing ceiling level and rafter level insulation for the best savings. Foam spray is a great option here, depending on the construction of your roof.

Flat Roof Insulation

Flat roofs can benefit from added insulation on the inside ceiling or an external layer on the roof. Many choose to opt for an internal plaster board with insulation and a vapour control layer.

Can I Install It Myself?

Attic insulation can be quite a simple project which you can do yourself provided that you have easy access to your roof, you don’t have any damp or condensation issues, the joists of your attic are placed with a regular space, and you are not attempting to install the insulation on a flat roof.

If your project gets more complicated, then some skills and experience will be required. So, unless you are an experienced DIY-er, it is better if you hire a professional installer who knows the most effective ways to insulate an attic.

The insulation of flat roofs should always be carried out by an expert installer, and if you spot any damp, you will have to take care of that before the attic insulation project begins.

Attic & Loft Insulation Quotes

Insulating your attic area is an efficient way to keep your house warmer and reduce your energy bills. If the project is relatively simple, you can carry it out yourself. Otherwise, you can use the help of professional installers. Finding the right one can be a challenging and time-consuming process.

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Last Updated on October 28, 2021


Author: Indra Gupta

Indra is an in-house writer with a love of Newcastle United and all things sustainable.

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