Knauf Insulation Loft Roll
Loft insulation rolls by Knauf
Loft Insulation
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Loft insulation is essential when it comes to insulating your home to prevent heat from seeping out through the roof or loft space. Not only is this essential to keep warm air in throughout the winter, but to also keep warm air out during the summer. By securing the buildings thermal envelope through insulating the loft, you can save money on heating and energy bills. Order your loft insulation online with us today.
Buy Celotex Insulation Boards
Celotex Insulation Boards
Multi purpose insulation boards by Celotex.
Isover Spacesaver Loft Roll
Isover Spacesaver Insulation Loft Roll
Loft insulation rolls by Isover
Buy Recticel Insulation Boards
Recticel Insulation Boards
Eurothane general purpose PIR boards.
Insulation For Loft
Loft insulation is an integral part of creating a room in the roof which can be used as a bedroom, wardrobe, office space, and so on, by preventing drafts and helping to create a secure and safe environment. When it comes to choosing loft insulation, it is essential to choose the right materials to suit your insulation needs and building requirements, these materials can include mineral wool insulation, acoustic insulation, and rigid insulation where loft conversions are considered. Loft insulation is installed by cutting mineral wool rolls to fit between the floor joists, with additional layers placed horizontally over them. If the space is intended for use or decoration, further materials may be required such as PIR Insulation boards, loft boards, and plasterboard.
Pros of Loft Insulation
- Reduces the levels of heat lost through the loft and roof space
- Supports the insulation in the roof by preventing heat levels rising from the rooms below
- Helps to improve temperature control when used to create a loft conversion
- Reduces carbon emissions and environmental impact
- Simple to install between the floor joists of the loft space
- Loft insulation is generally made for installation between joists and comes in sizes designed to minimise cutting
- Once installed, loft insulation generally requires little to no maintenance
- Can help to reduce condensation and mould growth that can damage the loft structure
- The cost of loft insulation will be repaid over time by a reduction in energy bills
- In some cases, loft insulation does not require a professional and is possible to do yourself when the correct guidelines are followed
Cons of Loft Insulation
- The initial cost to insulate a loft can be high, particularly is larger properties and spaces
- Loft insulation can be difficult to install in hard-to-reach areas and may require professional help
- Improper installation can result in poor ventilation which can worsen or form damp and condensation issues
- Some loft insulation materials can sag or reduce as time goes on
- Some insulation materials such as fibreglass can cause irritation when in contact with the skin and eyes or if inhaled
- Ventilation and airflow need to be considered when installing insulation and, in some cases, increased
- When converting the loft into a usable room, additional insulation and structural support will need to be considered
Mineral wool Insulation
Mineral wool insulation materials are known for their incredible thermal and acoustic properties as well as their sustainability and fire rating. The wool is manufactured using an impressive blend of raw materials. In addition to the loft space, mineral wool can be installed within walls, floors, and ceilings. Mineral wool insulation can include rock wool, fibre glass, and stone wool batts and rolls. Mineral wool materials can be applied in several ways – the old mineral wool can be removed and then replaced with a new layer, or a new roll can be placed over the top of the existing insulation.
The Benefits of Mineral Wool Insulation
- Cut simply by repeatedly cutting along the same line with a sharp knife
- Easily installed due to roll widths and lengths designed to fit between rafters and joists
- Mineral wool is non-combustible and will not ignite or burn when exposed to extreme temperatures
- Depending on the material, achieves either A1 or A2 Euroclass reaction to fire classification
- Available in a variety of sizes and thicknesses
- Made from flexible materials that tightly compress which is perfect when installing in hard-to-reach spaces
- Environmentally friendly and often made up of recycled materials such as rock, stone, glass, or slag
- Mineral wool is available in batts and rolls
- Helps to maintain and regulate internal temperatures by reducing heat lost through the loft
The Disadvantages of Mineral Wool Insulation
- Mineral wool fibres can cause irritation to the eyes, skin, and respiratory system if not handled correctly wearing the necessary gear
- The thermal performance of mineral wool insulation is generally not as good as rigid insulation materials
- Mineral wool is naturally a denser and therefor heavier material which can be difficult to handle
Acoustic Insulation
Acoustic insulation can provide the ultimate comfort by soundproofing the space whilst improving the thermal quality and is particularly useful when converting the loft space into a room in the roof. Acoustic products that can be essential for soundproofing your loft include acoustic rolls, mineral wool slabs, soundproof plasterboard, and can extend to products such as acoustic underlay. These products are designed to absorb both airborne and impact noise, preventing sound waves from passing through.
Acoustic insulation ensures the rooms or living spaces below the loft is comfortable and not disturbed by media noise or footsteps from above.
The Benefits of Acoustic insulation
- Reduces noise levels travelling between neighbouring properties without having to worry about disturbing neighbours or them disturbing you
- Suppresses unwanted external noise such as traffic, passers-by and extreme weather conditions such as heavy rain or strong winds
- Soften sound levels travelling between floors
- Acoustic insulation also has excellent thermal qualities and will reduce heat loss in addition to noise levels
- Sound insulation can help to meet building regulations
The Disadvantages of Acoustic Insulation
- Acoustic insulation can be higher in cost to purchase than other insulation materials
- If installed incorrectly it can significantly affect the performance of the material
- To achieve optimal sound proofing other elements may need to be addressed such as air gaps and acoustic underlay on the floorboards
- Dense and heavy materials can add weight to the ceiling and may require support
How Much is Loft Insulation?
The price of loft insulation will depend on a number of factors including what insulation thickness you require, how many rolls you need to fill the loft space and whether you require someone to install the insulation for you. The standard loft insulation thickness if 270mm according to current building regulations. You can find our full range of loft rolls on our website.
How much loft insulation do I need?
Loft rolls in thicknesses of 100mm and 170mm need to be applied in between and horizontally over the top of the rafters to create an overall thickness of 270mm. The amount you need will depend on the size of the loft space and the coverage per square meter.
What Building insulation Do I Need for A Loft Conversion?
For a loft conversion, standard loft rolls are typically used to insulate the floor between the joists. Mineral wool is a popular choice for insulating the walls and ceiling, fitting between and over the rafters, alongside foam PIR insulation boards. Plasterboards will help to construct a smooth finish on the walls and ceilings ready for painting and decorating. Acoustic insulation is also a great choice when it comes to loft conversions and can be applied to floors, walls, and ceilings.
Should I Remove Old Loft Insulation?
Older insulation in the loft can be kept and new insulation can be laid over the top of the existing insulation materials however if there is a chance of damp, pests, or damage than the existing insulation will need to be removed, the space cleared, and the new loft roll insulation installed.
Is 200mm loft insulation too Thin?
New government recommendations mean that loft insulation in its entirety should equate to 270mm, therefore 200mm of loft insulation is too thin. However, if existing insulation is in good condition than insulation can be applied over the top in the thickness you need.
