I'm building a new house. What insulation should I use for my internal walls?


Internal wall insulation can have a very big impact on the heating bills however it is also a process which requires careful consideration before you decide on the installation. Since internal wall insulation can be quite a disruptive experience where items such as radiators, switches and kitchen fittings may have to be removed, it is best to carry out the process when you are building a new house; wall insulation or home insulation of any kind for that matter, this can get bothersome once you start the installation for an old house. As the idea for wall insulation is to create a layer which is airtight, it is important that areas or awkward spaces such as floor voids or unfinished areas be handled properly.

Knauf insulation is a company offering all kinds of home insulation solutions. Amongst the options available for internal wall insulation and for partitions are:

Knauff Earthwool you can pick from the Earthwood acoustic roll and the earth wool flexible slab. A distinct combination of a high number of characteristics is found in Knauf earth wool; it has attained a rating of A+ in the BRE green guide rating, is created using recycled materials, made using ECOSE technology, it illustrates a formaldehyde-free binding process, there are no added dyes and up to 70% less exemplified energy. Knauf earth wool is deemed as a revolutionary product as it takes a step towards a new age for insulation since it offers unparalleled levels of performance along with sustainability. It’s like an all in one package because it brings the same dependable acoustic and thermal performance as the good old mineral wool insulation, the only difference is better insulation with an all-natural material.

Rockwool insulation which has its set of advantages such as having heat coefficient of heat conductivity and an excellent capacity for heat preservation. It also leads to a remarkable effect on energy saving. Rockwool insulation has stable chemical elements thus making it long-lasting for use. Other chief benefits are excellent sound absorption, great fireproofing capabilities; green building material which makes it quite safe and it has a broad range of use. Other than these evident advantages, Rockwool insulation has been designed to simplify insulation product choice and offers clear application focus. It is the ideal choice for residential thermal applications such as loft conversions, extensions, change of use, and sound applications such as bedrooms, home offices, bathrooms and media, gaming and TV rooms. When used with the aim of dependable thermal performance it can enhance the home safety as well as comfort while keeping heating bills considerably low. When Rockwool is used for sound insulation, with its higher product density it is able to trap sound waves and deadens vibration leading to lessened noise from both end-to-end properties and between rooms in the same home.

Celotex insulation is created through a process which blends together a number of materials with the end result of a firm foam product. Celotex has excellent thermal performance, low-emissivity; it has multiple applications and offered in varied thickness ranges to choose from. Celotex also has an A+ rating when compared to the BRE Green Guide, good fire performance, great moisture resistance, and its lightweight and has the quite high life expectancy. Other than being a choice for insulation, Celotex is also used as a vapour barrier, siding, or layer under a roof.

Knauf dri-therm cavity slabs are semi-rigid or rigid slabs of non-combustible, water repellent, glass mineral wool. Their width which is 455mm is perfect to match standard vertical wall tie spacings thus the result is a closed joint with end-to-end slabs. These have certain advantaged attached to them, for instance, they are approved by the British Board of Agrément to counter the effects of all kinds of exposures. The material of Knauf dritherm also has remarkable thermal and fire performance along with the added benefit of being water repellant. When the slabs are ‘knit’ together for insulation purposes, their placement is such that it eliminates air gaps between adjacent slabs.

Plasterboard is another kind of material used for the purpose of insulation’; it is also known by the names of drywall, wallboard and gypsum board. Plasterboard is a type of panel created using gypsum plaster which is placed between two sheets of paper and then pressed. The plasterboard panel is most suited for the making of interior walls, partitions as well as ceilings. It was made as an alternative to the conventional materials of lath and plaster. Plasterboard sheets are available in various metric sizes, the most common being the 120cm wide sheets and the typical length of 240cm. Acoustic plasterboard constrains the pathway of sound, thermal prevents the loss of energy from buildings, moisture control board is for use in kitchens and bathrooms and fire protection plasterboard fights the blowout of flames and heat. 

Rockwool insulation also offers a distinct acoustic insulation product with a patented flexible edge along one side; this is the Rockwool Flexi-slab. This exclusive flexi edge is created by making use of patented technology to make sure that the fit is perfect between the product and the supporting framework. This guarantees the insulation’s reliability. Rockwool Flexi-slab is intended for a variety of applications, where the requirement is to get insulation which fits perfectly such as the case of walls, floors, partitions as well as roofs.The ‘Flexi’ edge permits for the product to be closely fitted between timber and metal frames, without the necessity for cutting or waste. The certain advantages of Rockwool Flexi-slab are: patented ‘Flexi’ edge offers accurate fit to all widths, in the case of shrinking of the studs it will not slump, it has multi-applications thus able to fit most conventional timber and metal frame spacing, it produces no waste at all, it has excellent acoustic thermal and fire characteristics, quite convenient to install without causing gaps.


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