FAQ
- Does cork underlay actually reduce noise between floors?
Yes! It absorbs impact and airborne sound, improving acoustic rating and making your space noticeably quieter. - Can I install cork underlay under floating floorboards or hybrid flooring?
Absolutely. Cork is a fantastic acoustic underlay for hybrid flooring and floating timber floorboards. - Is cork underlay suitable for carpeted rooms?
Yes. Paired with acoustic underlay carpet layers, it can create excellent sound insulation in floors. - Do I need special adhesives for cork underlay?
We recommend Wakol MS260 adhesive from PortCork. It’s specifically designed for timber and cork installations. - Will cork underlay help if I live in an apartment or a double-storey home?
Definitely. It’s ideal for reducing footfall noise, especially when used with soundproof matting for floors.
A Fresh Start: Why Quiet Floors Matter
No one enjoys hearing every single footstep echoing from upstairs. Whether it is kids racing around or a washing machine shaking the whole room, poor sound insulation can turn a peaceful home into a noisy one.
The good news is that with the right materials and a bit of patience, you can install cork underlay under your flooring and create quieter, more comfortable spaces. This guide shows you how to do it step by step without needing any tradie experience.
You will also see why cork, especially from Australian favourite PortCork, is one of the most effective choices for improving acoustic performance. Let’s get started.
Materials You Will Need
Here is everything required for your DIY cork underlay project.
Essential items
• Cork underlay sheets or rolls
• Expansion Cork 12 mm from PortCork
• Wakol MS260 Adhesive from PortCork
• Utility knife or cork cutter
• Measuring tape
• Straight edge or ruler
• Safety gloves and goggles
• Flooring of your choice such as timber, hybrid, tile, or carpet
• Rubber roller or weighted trowel
• Clean up cloths
• Moisture barrier if needed
Optional but helpful
• Soundproof matting for floors if the space has high noise levels
• Underlay for floating floorboards
• Rubber acoustic underlay or acoustic matting for added performance
Preparing the Space
Before you jump in, prep is everything:
- Clear the room – Move all furniture and clean the subfloor thoroughly. No dust, no grime.
- Check the surface – Your subfloor should be flat and dry. Uneven spots? Level them out.
- Plan your layout – Measure your room and map out your cork sheet placement. It’ll save you major headaches later.
- Acclimatise the cork – Let your cork underlay sit in the room for 48 hours. This allows it to adjust to humidity and temperature—especially important with timber flooring underlay.
How to Install Cork Underlay Step by Step
Step 1: Lay Out the Cork
Step 2: Apply the Adhesive
Using a notched trowel, spread Wakol MS260 adhesive evenly on the subfloor. Work in small sections so it doesn’t dry out too fast. This adhesive is gold, it bonds beautifully with cork and timber.
Step 3: Set the Cork
Step 4: Trim the Edges
Once your sheets are all laid, trim any overhang using a sharp utility knife and a straight edge. Take your time, clean edges matter!
Step 5: Let it Cure
Step 6: Install Your Final Flooring
Whether it’s timber, tiles, hybrid, or carpet, now’s the time to lay it over your new cork underlay. You’ll immediately notice the difference in soundproofing and underfoot comfort.
Tips and Tricks
- For tiled floors, consider acoustical underlayment for tile options to boost performance.
- Don’t skip the expansion gap. It helps with thermal and moisture movement.
- If you’re laying acoustic underlay for carpet, be sure to use a compatible top layer to prevent movement.
- For serious soundproofing, layer cork with acoustic rubber underlay or rubber acoustic underlay to supercharge insulation.
- If you’re in a rental, check whether temporary underlay solutions like acoustic matting are allowed.
Common Mistakes to Avoid
- Skipping the moisture barrier: If your subfloor is concrete, moisture can ruin your cork and adhesive.
- Wrong adhesive: Not all glues work with cork. Wakol MS260 is specifically made for it. Don’t compromise.
- Overloading the seams: Cork expands slightly over time. Tight, overlapping seams may buckle.
- Ignoring room acoustics: Choose the right acoustic floor underlay depending on the room. Bedrooms, media rooms, and offices have different needs.
- Underestimating prep time: Clean and level subfloors make or break your sound insulation installation.
Variations or Customisation Options
Cork underlay is flexible. Here are a few ways to tailor your project:
- Use with acoustic underlay for tiles in bathrooms or kitchens (but make sure it’s sealed!)
- Mix cork with plywood flooring underlay for extra rigidity under heavy furniture
- Add layers: combine cork with soundproof under carpet materials for ultra-quiet bedrooms
- For tricky corners or oddly shaped rooms, cut cork sheets with templates for a perfect fit
- Prefer a greener approach? Cork is a natural, recyclable material, great for eco-friendly renos
Why Choose PortCork
When it comes to cork, PortCork knows their stuff. Here’s why thousands of Aussies choose them for flooring projects:
- Premium Products: Their Expansion Cork 12mm is top-grade. Durable, flexible, and sustainably sourced.
- Perfect Adhesive: The Wakol MS260 adhesive is engineered for timber and cork bonding. No slipping, no bubbling.
- Australian-Owned: You’re supporting a local business that understands Aussie homes and climate.
- Customer Service: Need help choosing your acoustic underlay? Their team is helpful, responsive, and down-to-earth.
- Eco-Conscious: PortCork is all about sustainability. Cork is harvested without killing trees, making it one of the greenest choices for flooring insulation.
- Fast Delivery, Fair Prices: No fuss, just quality cork and gear delivered to your door.
A Quieter Home Begins Beneath the Surface
Installing cork underlay under your flooring is more than a simple upgrade. With better acoustic insulation, softer underfoot comfort, and the use of sustainable materials, you are making a smart investment that improves both your daily living and your home’s overall quality.
And with PortCork’s reliable products and this straightforward guide, even first time DIYers can complete the installation confidently.
So gather your tools, follow the steps, and enjoy a quieter, more comfortable home enhanced with cork.
