YOUR GUIDE TO INSULATION

Acoustic insulations deadens the transfer of noise between rooms by absorbing the sound. Using acoustic insulation in refurbishment projects will make a difference to sound transfer, especially in conjunction with sound-deadening plasterboard. Using mineral wool ensures a better fit between insulation and timberwork, reducing the potential for gaps caused by inaccurate cutting. Combined with the appropriate plasterboard, this will meet any sound-related Building Regulations.

Earthwool Acoustic Roll

We stock Earthwool Acoustic Roll; a non-combustible mineral wool manufactured with Ecose technology, offering a lower price point than acoustic slabs and several environmental benefits. The rolls are pre-cut into 2 x 600mm wide sections so they can easily be separated and laid between stud wall battens or floor joists which are typically placed at 600mm centres.

Earthwool Acoustic Roll Available in:

• 100mm (11m²) (2800616)
• 75mm (15m²) (2800618)
• 50mm (15.6m²) (2800622)

Rockwool Sound Slab

Rockwool Sound Slab is designed for use in internal and separating walls and floors to reduce noise from adjacent rooms or neighbouring properties.
This A1 fire-rated product is ideal for use in home offices,bedrooms and gaming rooms as the slabs are easy to fit around cables, pipes, sockets and services. Made from stone wool, the noncombustible slabs can withstand temperatures up to 1777°c, helping to reduce the risk of fire spread. The easy friction fitting leaves no gaps resulting in maximum performance which better absorbs sound waves and traps vibration.

Rockwool Sound Slab Available in:

• 50 x 60 x 1200mm (8.64m²) (2905102)
• 100 x 600 x 1200mm (4.32m²)(2905104)
• 110 x 400 x 1200mm (2.88m²) (2905105)

Use for:

• Internal walls
• Separating floors
• Internal floors

View Acoustic Insulation Range

Using acoustic insulation deadens the transfer of sound between rooms, providing sound insulation and sound absorption. This simply leads to a better quality of life for occupants and a feeling of high-quality construction if sound from one room is less audible in others.

Whilst noise reduction is often a system and can involve changes in the way structural timber is used, as well as the type of flooring and plasterboard chosen, selecting the right insulation is key. Using acoustic insulation in refurbishment projects will make a difference to sound transfer, especially in conjunction with sound-deadening plasterboard. Using mineral wool as acoustic insulation ensures a better fit between insulation and timberwork reducing the potential for gaps caused by inaccurate cutting. Combined with the appropriate plasterboard, this will meet any sound-related Building Regulations.

External walls on residential and commercial properties, both new builds and extensions, require cavity insulation to meet Building Regulations.

Knauf DriTherm

Knauf DriTherm cavity slabs are a non-combustible glass mineral wool slab incorporating the environmentally friendly Ecose technology as well as a water repellent additive Cavity insulation, installed as the wall is built, prevents mortar and debris bridging the cavity by creating a moisture bridge.
As well as top-class thermal performance, DriTherm is sized to fit between wall ties without the need for retaining discs, reducing cost and saving time on site. Huws Gray stocks DriTherm 32 Ultimate and DriTherm 37 Standard.

• DriTherm 32 Ultimate offers the best thermal efficiency, the slightly higher price brings long-term savings. All new build homes should be specified with DriTherm 32.
• DriTherm 37 Standard is mainly used in extensions. It offers a lower thermal performance but retains the water repellent additive and A1 fire rating.

Xtratherm Cavity Wall Board

Huws Gray also supplies Xtratherm’s Thin-R Partial Fill Cavity Wall XT/CW boards, which thanks to tongue and grooved joints, ensure insulation continuity and minimisation of thermal bridging.
These boards are foil-faced polyisocyanurate (PIR) insulation and so are quite robust for easy handling on site and can be simply slotted in during construction then fixed into place.
Designed for use in traditional masonry walls and maintains a residual cavity, offering protection from wind driven rain. A full-fill board is also available to order.

Xtratherm Cavity Wall Board Available in:

• 50mm T&G (2907364)
• 50mm (2907358)
• 75mm (2907347)

Use for:

• Masonry Cavity Walls

View Cavity Insulation Range

Huws Gray stock a vast range of cavity insulation products to meet the demands of all projects. We work closely with leading manufacturers Knauf Insulation and Xtratherm to provide a multitude of premium quality products at competitive prices. If you need anything specialist, let us know and we can either source it or consider alternative options.

A Guide to Knauf Dritherm Insulation

New external walls on residential and commercial properties require cavity insulation, whether new build or extension, so that construction meets Building Regulations relating to heat loss.

Huws Gray supplies Knauf Dritherm cavity slabs; a non-combustible glass mineral wool slab. Dritherm incorporates the environmentally friendly Ecose technology as well as a water repellent additive, suitable to prevent slabs being damaged during construction and making them perfect for external wall construction. Full-fill insulation, installed as the wall is built, prevents mortar and debris bridging the cavity thereby creating a moisture bridge.

As well as top-class thermal performance, Dritherm is sized to fit between wall ties without the need for retaining discs, reducing cost and saving time on site.

Huws Gray stocks Dritherm 32 Ultimate and Dritherm 37 Standard. 32 Ultimate offers the best thermal efficiency, the slightly higher price brings long-term savings. All new build homes should be specified with Dritherm 32.

37 Standard is mainly used in extensions. It offers a lower thermal performance but retains the water repellent additive and A1 fire rating at a lower price point.

The required loft insulation in new builds using mineral wool alone is 270mm depth, but standards are expected to increase over time. Installing loft roll is a common and relatively easy task for the homeowner to save on heating bills. This often involves an additional layer of 100mm or 200mm laid at right angles to existing insulation. Care must be taken to ensure the roof space is ventilated and eaves are not completely blocked, typically achieved using a plastic guard called a baffle.

Earthwool Loft Roll

For insulating cold roof spaces (where the loft is not a habitable room) in pitched roofs at ceiling level, Earthwool Loft Roll is a non-combustible mineral wool manufactured with Ecose technology, one of the benefits of which is to make the rolls much easier to handle.

• Earthwool offers excellent thermal performance, an A1 fire-rating and a choice of two lengths.
• Earthwool Loft Roll 44 Ready-Cut is available in one size: pre-cut to 600mm widths in 150mm depth, the pack provides 9.18m². Earthwool Combi-Cut 44 is partially perforated for easy use at 400mm or 600mm centres to reduce time on the job.

Different lengths in stock

Standard length available in:

• 100mm (13.89m²) (2800518)
• 150mm (9.18m²) (2800516)
• 200mm (5.93m²) (2800512)

Use for: Loft spaces between and across ceiling rafters

View Loft Roll Insulation Range

The versatile OmniFit roof and wall insulation from Knauf Insulation is ideal for large jobs and buying in bulk. OmniFit offers the same thermal resistance as the premium Earthwool Loft Roll 40, but also boasts soundproofing qualities comparable to the performance of the Earthwool Acoustic Roll.
Both slabs and rolls are manufactured from non-combustible glass mineral wool and have an A1 fire rating, not forgetting the Ecose technology which removes harmful chemicals from the manufacturing process.

Knauf OmniFit Roll

OmniFit Roll available in:

• 100mm (8.16m²) (2801048)
• 150mm (5.46m²) (2801047)
• 200mm (4.08m²) (2801046)

Use for:

• Internal walls
• Pitched roofs at ceiling level
• Suspended timber floors
• Separating floors
• Internal floors
• Suspended timber ground floors

Knauf OmniFit Slab

OmniFit Slab is more rigid than OmniFit Roll and can simply be lifted into place where it will hold its shape. This makes the product ideal for pitched roofs when insulating between rafters, timber frame and steel frame walls as well as internal stud walls and suspended, internal or separating floors. Slabs have a slightly better thermal performance than rolls due to the increased density.

OmniFit Slab available in:

• 50mm x 600mm (8.64m²) (2801042)
• 70mm x 600mm (5.76m²) (2801040)
• 100mm x 400m (2.88m²) (2801044)
• 100mm x 600mm (4.32m²) (2801038)

Use for:

• Pitched roof at rafter level
• Timber frame walls
• Light steel frame walls
• Internal walls
• Separating floors
• Internal floors

View OmniFit Insulation Ranges

The versatile OmniFit range from Knauf Insulation has been designed for use in a number of different applications. This means you only need to buy one product which makes on-site handling more efficient, for larger jobs you can combine insulation types and buy in bulk. OmniFit offers the same thermal resistance as the premium Earthwool Loft Roll 40 but its acoustic properties also mean it is suitable for sound-deadening requirements, being comparable to Acoustic Roll in performance.

Both slabs and rolls are manufactured from non-combustible glass mineral wool and have an A1 fire rating. They also both incorporate the Ecose technology removing harmful chemicals from the manufacturing process.

OmniFit Slab is more rigid than OmniFit Roll and can simply be lifted into place where it will hold its shape. This makes the product ideal for more applications such as pitched roofs when insulating between rafters, timber frame and steel frame walls as well as internal stud walls and suspended, internal or separating floors. Slabs have a slightly better thermal performance than rolls due to the increased density.

If your building needs a warm roof space then insulating between rafters, against eaves walls and across the ceiling is critical to meeting the U-Value requirements for heat loss. Foil-faced PIR boards offer a good solution due to their ability to provide high thermal insulation with minimal thickness, leaving more habitable space. Their light-weight and rigidity means they are also easily fixed in place and any angles easy to cut.

Warm Roof construction is a particularly effective way of insulating complex roofs. Insulating above – or above and between – the roof timbers ensures that the structure is kept at or near the internal environmental conditions, reducing thermal stress and condensation risk.

Xtratherm XT/PR Boards

Huws Gray work with Xtratherm to supply Thin-R Pitched Roof XT/ PR boards. On sloped roofs (ventilated, hybrid or warm) these provide the most efficient U-values with minimal intrusion into valuable living space. Using XT/PR will reduce heat loss and thermal bridging.

Xtratherm XT/PR Boards Available in:

• 25mm (2907300)
• 40mm (2907306)
• 50mm (2907308)
• 60mm (2907310)
• 70mm (2907312)
• 75mm (2907314)
• 80mm (2907316)
• 90mm (2907318)
• 100mm (2907320)
• 120mm (29073210)
• 125mm (2907322)
• 150mm (2907325)

Use for:

• Above, between or over rafters and eaves in warm roofs

View Roof & Floor Insulation Range

Aware of the need for effective insulation, we provide an extensive range of high quality floor and roof insulation products.

Selected in close cooperation with leading insulation manufacturers, our products are designed to provide optimal insulation while being fast and cost-effective to install.

Browse the range to find the most suitable product/s for your project or find specific products via the search panel at the top of our pages.

At Huws Gray we also have access to a wider range of insulation products suitable for specific applications. If you need a specific insulation, product or size, let us know in branch and we will work with our suppliers to find it for you or identify a suitable equivalent product.

Other specialist insulation items:

• Earthwool Masonry or Timber Party Wall Slabs
• Earthwool Rafter Rolls
• Earthwool FrameTherm and SteelTherm Rolls

Jablite Jabfloor insulation

Jablite Jabfloor insulation boards are also available. This flooring insulation board can be used in a number of flooring applications to achieve required U-values including below ground supported slab, and above slab but below chipboard or screed.

Jabfloor 70G Available in:

• 25mm (2906300)
• 50mm (2906304)
• 75mm (2906308)
• 100mm (2906310)

SuperQuilt from YBS Insulation

SuperQuilt from YBS Insulation provides thermal insulation in a 40mm thin, flexible multi-layer membrane insulation for use in roofs, walls and floors. Weighing just 800g/m², this insulation can simply be stapled in position. In a roof application an R-Value of 2.50m²kW is achieved, in walls 3.00m²kW and in floors 4.45m²kW.

SuperQuilt Available in:

• 1.5m x 40mm x 10m rolls (15m²) (2905168)
• 75mm x 50m Insulation jointing tape (2908002)

View our Insulation products

Contact your local branch team to discuss anything you need or browse our insulation products online.

As a leading stockist of first class building materials, we carry a wide range of high quality building insulation materials.

Competitively priced, our range of insulation products includes everything from acoustic, cavity and loft insulation to roof & floor insulation products, insulation fixings and more.