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Spray Foam Insulation

Is It Better To Insulate Ceiling Or Roof?

is it better to insulate ceiling or roof

Effective insulation is an important part of maintaining your house, and ensuring you have comfortable conditions inside. Insulation acts to prevent heat loss and gain within a building. It also minimises condensation which can cause problems with damp.

Insulation can be installed in the ceiling, roof, floor or walls of a house, and is one of the most cost effective ways to make sure your house stays warm in Winter, and can save you hundreds of pounds in energy bills.

The best way to prevent heat from escaping through the top of your house is by installing ceiling or roof insulation, but which is right for you?

Ceiling Insulation: Pros and Cons

Ceiling insulation is an excellent way to retain heat between the floors of a house, prevent heat loss through the roof, and keep your home cool in the Summer. 

Ceiling insulation comprises of bulk or loose-fill insulation. Bulk insulation comprises of blanket insulation, which covers the ceiling joists, and segment insulation, which is installed between the ceiling joists. Loose-fill insulation is sprayed between the gaps in the ceiling joists.

To install ceiling insulation, first make sure there is enough ceiling space for the material to be placed, and to enable you to move around during the installation process. Make sure you wear the correct clothing and safety equipment before beginning the installation.

Measure up the space you want to insulate, and cut the material with 10 to 20mm extra for a snug fit. To prevent moisture from soaking into your insulation material, make sure there is a gap of at least 25mm between the material, and the underside of the above layer of material or roofing paper.

Roof Insulation: Pros and Cons

Roof insulation is installed above and below roof rafters, within the slope of your roof. Heat rises, which means all the warmth in your house can eventually be lost through the roof, so roof insulation is a great option for improving heat retention overall.

Loose-fill insulation, which is blown into the gaps between rafters, is commonly used in roofs. Loose-fill insulation can be made of several materials including: mineral wool, vermiculite, cellulose fibre or cork granules.

It is recommended that roof installation is between 250 to 270mm thick. If your house already has roof insulation, it is worth checking if it is thick enough , as regulations have changed within the last few years, and it is not difficult to increase the thickness.

is it better to insulate ceiling or roof

Roof insulation is a good option if you have an old house. Older buildings tend to be more draughty, so insulating the whole roof is a wise decision!

Which Insulation Should You Choose? Final Conclusion

Both roof and ceiling insulation are great options for insulating your home, but which one is best for you?

Ceiling insulation can be easier to install than roof insulation, as access to the roof can often be more difficult. Additionally, insulating your roof requires more planning to accommodate different roof types.

Depending on whether your roof is gabled, flat, metal or tapered, access to the space between the rafters can be limited, and require careful planning, before insulation can be installed.

Ceiling insulation can also be significantly cheaper than roof insulation, and can be more easily achieved without professional help. It can be difficult to access the roof space where insulation is needed, so loose-fill insulation installed by a professional is commonly used in this case.

Unlike ceiling insulation, when you are insulating a roof you may need to actively increase ventilation to minimise the risk of damp before beginning the process.

Roof insulation is a bigger, and often more costly project to undertake, but in the long term can make a very positive impact on your home. Your roof is essentially the first layer of protection against the elements, so investing in roof insulation is a great way to make the whole house more comfortable, save money on energy bills, and increase the value of your home.

Roof insulation is a good option if you have an old house. Older buildings tend to be more draughty, so insulating the whole roof is a wise decision.

Additionally, roof insulation, which covers a large area, can provide real health benefits, by helping to prevent the development of mould and damp, both of which are more common in older buildings.

Ready to take the next step? Request your free roof inspection today by calling 0800 1700 636, or by simply clicking the button below!

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Still seeking further insulation inspiration for your ceiling and roof space? Get in touch with our expert team today, by simply clicking the button below!