Conversations carrying through?
Look at the full partition: its cavity insulation, board layers, seals, doors and the routes sound can travel around it.
Explore cavity insulation ↗The acoustic comfort collection
Acoustic insulation.Make room for better sound.
Build quieter spaces with Isover cavity insulation, Knauf Acoustic Rolls, higher-density Energylite and acoustic ceiling tiles. Find the right starting point for your walls, ceilings and noise-control project.
Homes. Offices. Studios. Commercial spaces.
Practical product advice, from the cavity to the ceiling.
Plan acoustics before closing the wall
The details make the difference.Insulation. Linings. Seals. Sound paths.
01
Cavity batts & acoustic rolls
For framed walls and specified cavity systems.
02
Higher-density options
Energylite for more demanding specifications.
03
Acoustic ceiling tiles
Sound absorption for the room below.
Too much echo?
Sound-absorbing ceiling finishes can help control reverberation in offices, classrooms, meeting rooms and other busy spaces.
Explore acoustic tiles ↗Machinery or persistent noise?
Match the treatment to the noise source. Higher-density insulation can be one component of a designed acoustic solution.
Explore Energylite ↗01 / Inside the wall
Acoustic insulation for
drywall & partitions.
Choose batts or rolls to suit the frame, cavity depth and specified wall construction. Ask us to confirm quantities and availability.
Pre-cut glasswool batts
ISOVER
Cavitybatt™
Acoustic cavity battsGlass-tissue-faced batts for steel or timber framed walls and drywall systems. A practical format for fitting insulation between studs.
- 63mm
- 102mm
Batt format
1,200 × 600mm per batt
Choose the thickness for your cavity.
Get a Cavitybatt quote 1,200 × 600mm per batt
Choose the thickness for your cavity.
Glasswool cavity rolls
ISOVER
Cavitylite®
Acoustic cavity rollsThe cavity-roll option in Isover’s range. Glass-tissue-faced insulation that can be cut to the required lengths for framed wall construction.
- 63mm
- 102mm
Roll format
5.4m long, supplied as 2 × 600mm widths
6.48m² total coverage per pack.
Get a Cavitylite quote 5.4m long, supplied as 2 × 600mm widths
6.48m² total coverage per pack.
With ECOSE® Technology
KNAUF INSULATION
Acoustic Roll
Glass mineral wool rollsAcoustic rolls for internal walls, partitions and suitable floor systems. Ready-cut widths help with fitting between the specified studs or joists.
- 63mm
- 100mm
Coverage by thickness
63mm: 18.00m² per pack
100mm: 12.36m² per pack.
Get a Knauf Acoustic quote 63mm: 18.00m² per pack
100mm: 12.36m² per pack.
Checking a 100mm specification? Isover’s published thicker Cavitybatt and Cavitylite option is 102mm; Knauf Acoustic Roll is 100mm. Confirm the exact product against your cavity and drawing. Dimensions and pack formats should be checked when ordering.
02 / More demanding acoustic applications
Higher-density
Energylite insulation.
For noisy commercial spaces, machine rooms and specified acoustic linings, explore Isover Energylite batts and rolls. The range offers different densities and thicknesses so the material can be matched to the construction and acoustic brief.
47.5kg/m³
Batts & rolls
25, 40 and 50mm options in the published range.
64kg/m³
Higher-density batts
25, 40 and 50mm options for specified applications.
Density is one selection factor. Thickness, frequency, facing, air space and the surrounding construction also influence performance.
Very noisy areas, bass and vibration may need a combination of absorption, sound isolation and treatment of flanking paths. A denser batt alone does not establish a room’s sound reduction. Share the noise source and any acoustic specification with your enquiry.
03 / A better sound inside the room
Acoustic suspended
ceiling tiles.
A visible ceiling finish can also absorb sound. Compare the selected tile’s acoustic data, finish and grid compatibility before ordering.
ISOVER / VINYL-FACED GLASSWOOL
Soundlite® ceiling tiles
A glasswool acoustic tile with a decorative Coral vinyl facing. An option to discuss for offices, meeting rooms and other suspended ceilings where the finish and room acoustics both matter.
25mm and 40mm thicknesses
Published tile sizes: 595 × 595mm or 1,195 × 595mm.
Confirm the face, edge and grid system with your quote.
Enquire about Soundlite tiles ↗Published tile sizes: 595 × 595mm or 1,195 × 595mm.
Confirm the face, edge and grid system with your quote.
ISOVER / BLACK GLASS-TISSUE FACE
Cineplex ceiling tiles
Black-faced glasswool acoustic tiles for cinema-style spaces and other projects requiring a dark, sound-absorbing ceiling finish. Select them as part of the room’s acoustic design.
40mm thickness
Published tile sizes: 595 × 595mm or 1,195 × 595mm.
Confirm the installation arrangement and availability.
Enquire about Cineplex tiles ↗Published tile sizes: 595 × 595mm or 1,195 × 595mm.
Confirm the installation arrangement and availability.
Another acoustic tile specified?
Send the brand, product name, tile schedule and required performance. We can check availability for mineral-fibre acoustic tiles and discuss suitable options. A fissured or textured face on its own does not establish sound absorption.
Common grid modules are 600 × 600mm and 1,200 × 600mm. Actual tile dimensions and edge profiles must match the chosen grid. Explore our suspended ceiling guide ↗
The whole construction matters
Build the quiet
into the details.
Cavity insulation absorbs sound within the construction. The performance between rooms also depends on the wall, floor or ceiling around it. Plan these details together before ordering the materials.
For studios, confidential meeting rooms or difficult low-frequency noise, work from an acoustic specification that considers the complete space.
Fit the insulation.
Match thickness to the available cavity and specified assembly. Cut carefully around obstructions and avoid unintended gaps or compression.
Choose the board build-up.
Board type, layers, frame arrangement and connections affect sound transmission. Use the lining combination specified for the partition.
Close the weak points.
Perimeters, sockets, doors and service penetrations can provide sound paths. The detailing needs the same attention as the insulation.
Look above the partition.
Sound can travel through a shared ceiling void. Where privacy matters, assess the ceiling system, barriers or a partition extending to the structure.
04 / Start with your project
Tell us what
you need to quieten.
Prepare a clear enquiry with your noise concern, preferred material and project details. If you are unsure about the product or do not have measurements yet, we can help with the next step.
- Describe where the sound starts and where you hear it.
- Choose a product if it is already specified.
- Add an approximate area or send measurements and photographs later.
Working from drawings?
Prefer to talk? Call 087 711 0229 ↗Send the wall section, ceiling schedule or acoustic specification with your WhatsApp message. For replacement tiles, include photos of the face, edge and grid.
Build your acoustic enquiry
Review your message, then send it on WhatsApp.
We’ll confirm the specification, quantities, availability and price with your quotation.
Materials & installation
From the product
to the finished space.
Roof Insulations supplies the materials. For drywall and suspended ceiling installation in Cape Town and surrounding areas, contact Cape Ceilings & Drywalling.
Share the required construction and acoustic specification so the insulation, linings, ceiling and installation details can be considered together.
05 / Before you buy
Good acoustics start
with good questions.
The right material depends on what you want to improve and how the room is built. These are the details worth checking.
Ask us about your project ↗What is the difference between Cavitybatt and Cavitylite?
Cavitybatt is supplied as pre-cut batts; Cavitylite is the cavity-roll format. Both are Isover glasswool products developed for framed construction and drywall systems. Choose the format around the frame layout, specified thickness and installation method.
Should I order 63mm, 100mm or 102mm insulation?
Use the thickness specified for the complete wall, floor or ceiling system and check the available cavity. The featured Isover options are 63mm and 102mm; Knauf Acoustic Roll is offered here in 63mm and 100mm. Do not substitute a different thickness purely because the names sound similar.
Is Knauf Acoustic Roll the same as Knauf Ceiling Roll?
They are different product ranges with different intended applications and pack sizes. Knauf Acoustic Roll is designed for internal wall and floor applications. Check the product name on the quote and pack; the coverage of a thermal Ceiling Roll is not interchangeable with Acoustic Roll coverage.
Is higher-density Energylite always better for soundproofing?
Density alone does not determine the result. The thickness, sound frequencies, facing, air space and complete construction all matter. Energylite offers higher-density options for specified applications, but machinery vibration and strong bass can require additional isolation and a project-specific acoustic design.
Will acoustic ceiling tiles stop conversations being heard next door?
Sound-absorbing tiles mainly help manage sound reflecting within the room. Privacy between rooms also depends on the ceiling’s attenuation performance, partitions, doors, seals and shared ceiling void. Ask for the appropriate system performance rather than choosing by an absorption rating alone.
Are all suspended ceiling tiles acoustic tiles?
No. Different tiles have different absorption and attenuation performance. A textured or fissured finish does not guarantee good sound absorption. Compare the exact product’s technical data, then confirm its edge detail and grid compatibility.
Can insulation be laid directly on suspended ceiling tiles?
Only where the selected ceiling system permits that product and loading arrangement. Check the tile and grid manufacturer’s requirements for insulation support, services and access. Added insulation should be planned as part of the ceiling construction.
How do I get acoustic insulation prices?
For cavity batts, acoustic rolls and ceiling tiles, send your preferred product, thickness, area and delivery location. For Energylite, open the batts or rolls product page to see current options, then confirm the required specification. Compare quotes using the same VAT basis, quantities, delivery and installation scope.
Let’s find the right starting point
A quieter space.
A clearer plan.
Send us the noise concern and the construction you are working with. We’ll help you confirm the product options and prepare a materials quote.
