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Home / Loft Insulation Grant
Many homes feature an accessible loft or attic, and research indicates that as much as 25% of overall heat loss in a property occurs through the loft space and roof. Implementing insulation in these areas is considered one of the simplest, fastest to install, and cost-effective measures for improving energy efficiency. The primary advantages include:
Approximately 25% of heat is squandered through the roof in a house lacking insulation. Insulating your attic, loft, or flat roof proves to be an effective means of curbing heat loss and reducing heating expenses.
When properly installed, loft insulation has the potential to generate savings multiple times over its 40-year lifespan.
Insulating your loft is a straightforward process if there are no condensation or damp problems. If the loft is easily accessible and constructed with standard joists, mineral wool rolls can be employed.
To insulate, place one layer of insulation on top of the joists, which are the horizontal beams forming the loft floor. The second layer should be laid at precise right angles to cover the joists, effectively building up the insulation to the required depth.
If you use your loft space for living, you must ensure that the ceilings and walls between the heated and unheated areas are insulated.
Insulate all areas of the ceiling and walls around dormer windows, and you should use high-performance glass for the window or any skylights.
Like warm loft insulation, this isn’t something you can do yourself. Hire an expert installer to ensure your insulation’s suitable and fully installed and that there is adequate ventilation when needed.
Another option to protect your loft is to install insulation over and between the rafters, which are the sloping logs that form the roof.
It is possible to use rigid insulation boards, carefully cut to the correct size or foam insulation applied over the roof rafters.
Advantages:
Disadvantages:
Certain companies might offer to repair the roof leak or damage by using foam insulation on the roof’s surface without first addressing the issue. We don’t recommend you try this.
Like any other type of insulation, you must ensure that the roof is dry and in good shape before adding any insulation.
To make your loft a room, you must adopt the Room In Roof (RIR) approach.
Air has to flow in and out of your home to remain clean, dry and healthy. If you’re working on DIY insulation, ensure you don’t cover any grilles, vents or airbricks.
An experienced contractor will ensure not to hinder or stop any intended vents.
If you use your loft or attic to store things, it is recommended to place boards on top of the joists. If you cover the joists with insulation before making this move, the insulation won’t be sufficient in thickness.
To get the right amount of insulation, you can raise the height of the floor so that you can install sufficient mineral wool under the floor’s new at a higher level.
This can be accomplished by installing timber battens over the joists or purchasing specially-designed plastic legs that can fit onto the joists to support the flooring.
It is essential to leave an air gap that is ventilated between the boards and the insulation to stop condensation from the underside of the board.
Don’t compress the mineral wool when you put the boards on top since this could decrease its insulation.
Insulation prevents heat from living spaces, making your loft area cooler, which can cause or increase the severity of existing dampness or condensation issues.
If you’re making loft insulation yourself, you should remember that you may have to keep property ventilation.
Consult a professional before installing insulation to determine how you can solve any damp issues first.
A flat roof is best to be covered with insulation from above.
A layer of insulation board can be placed over the roof’s weatherproof layer or directly over the timber roof’s surface with an additional layer of weatherproofing over the insulation.
This is the best option if the roof’s covering requires replacing. If your home’s flat roof needs to be replaced in the future, then you should seal it to ensure compliance with the building regulations.
You can make a flat roof more insulating from beneath; however, this can cause condensation issues if it is not done properly.
Flat roof insulation may reduce your heating costs as loft insulation.
The savings can vary based on the extent to which the home is flat.
If the loft in your home is difficult to access, it is possible to get blown insulation.
We use specialist equipment to blow suitable insulation materials into any problematic space.
Mineral wool fibers as well as treated cellulose or polyurethane foam, can be used for this.
Here's how much a typical installation could cost you, how much you could save on your energy bill (£/year) as well as how many kilograms of CO2 emissions you could save each year by insulating an uninsulated loft with 270mm of loft insulation:
Estimates based insulating a gas-heated home with a totally uninsulated loft (0mm) with 270mm of loft insulation. The recommended depth of mineral wool insulation is 270mm, but other materials need different depths. The average professional installation cost is unsubsidised, but prices will vary. Figures are based on fuel prices as of October 2024. Find out more about how we made these calculations.
The insulation between the joists in your loft can keep your home warm and makes the space above freezing.
This means that pipes and water tanks in the loft are more susceptible to freezing and you’ll need to shield them.
If the water tank is located some distance away from the hatch in your loft, you’ll need a walkway to ensure safe access.
The cooler air inside the loft you have insulated may result in cold draughts coming from the roof hatch.
To stop this from happening, install the attic with insulation. You can also apply a draught-proofing strip on the hatch’s edges.
Enhancing the energy efficiency of your home and minimizing heat loss can be achieved by insulating your loft hatch. Follow these steps to accomplish it:
Always wear protective clothing, such as gloves and a mask, when handling insulation materials to prevent irritation to the skin and respiratory system.
