Yes, you can glue down vinyl planks — but not all vinyl plank products are designed for it. Whether glue-down is the right method for your project depends on the specific product you've chosen, the condition of your subfloor, and the room's intended use. Read on to understand both methods and how to choose the right one for your NZ home.
Floating vs Glue-Down: What's the Difference?
Floating installation means the planks click or lock together and sit freely over the subfloor, held in place by their own weight and the room's perimeter. No adhesive touches the floor.
Glue-down installation means each plank is bonded directly to the subfloor using a recommended adhesive. This creates a rigid, stable floor that won't shift or flex.
Both methods are widely used in New Zealand homes, and each has genuine advantages depending on the situation.
When Glue-Down Is the Better Choice
Glue-down vinyl planks are often preferred in the following situations:
- High-traffic commercial or busy residential areas — glued floors resist movement and edge-lifting better over time.
- Rooms with heavy furniture or rolling loads — office chairs, appliances, and heavy furniture can cause floating floors to shift or gap.
- Wet areas — bathrooms, laundries, and kitchens benefit from a fully bonded floor that prevents moisture tracking underneath. Check that your chosen product meets the requirements of MBIE's Building Code clause E3 for internal moisture.
- Radiant underfloor heating — some floating floors can buckle with heat cycling. A glued-down product (check the manufacturer's specs) often performs better.
- Thin or flexible vinyl planks — thinner LVP (luxury vinyl plank) products (typically under 4 mm) often require adhesive to perform correctly, as they lack the rigidity to float properly.
When Floating Is the Better Choice
- You want an easier DIY install with less mess and fewer tools.
- You're renting or want to remove the floor later without damage.
- The product is specifically designed as a floating floor (many thicker, rigid-core planks are).
- You need to install over an existing floor surface (check height tolerances at doorways).
Check Your Product First — This Is Critical
Before you buy adhesive, read the manufacturer's installation guide for your specific vinyl plank product. Some products are approved for both methods; others are designed exclusively for one. Using the wrong method can void the product warranty and lead to failures like bubbling, delamination, or joint separation.
If you're unsure, contact the manufacturer or supplier directly. Brands like Ardex, Mapei, and Sika all manufacture adhesives suitable for vinyl flooring and publish technical data sheets with compatibility information.
Subfloor Preparation — The Most Important Step
Glue-down installation is far less forgiving than floating when it comes to subfloor condition. Your subfloor must be:
- Flat — typically within 3 mm over a 1.8 m straightedge (check your product spec, as tolerances vary).
- Clean and dry — free of dust, grease, old adhesive residue, and contaminants.
- Structurally sound — no soft spots, squeaks, or movement in sheet flooring or timber boards.
- Within acceptable moisture levels — use a moisture meter to check. Concrete subfloors in particular can trap moisture. BRANZ has guidance on acceptable moisture levels for flooring over concrete.
Use a floor-levelling compound (such as products from Ardex or Mapei) to fix low spots before gluing. Skipping this step is the number-one cause of glue-down floor failures.
Choosing the Right Adhesive
Not all adhesives suit all vinyl planks. Common types include:
| Adhesive Type | Typical Use | Notes |
|---|---|---|
| Pressure-sensitive (PS) adhesive | Most LVP glue-down installs | Allows some repositioning; widely recommended |
| Hard-set adhesive | Heavy commercial use | Permanent bond; harder to remove later |
| Double-sided tape | Perimeter or transition areas | Not suitable as a full-floor adhesive |
Always use the adhesive recommended or approved by your flooring manufacturer. Using an incompatible adhesive can cause the planks to blister, discolour, or fail to bond. Products are available from Bunnings, Mitre 10, and PlaceMakers.
Basic Glue-Down Installation Steps
- Prepare the subfloor — level, clean, and dry as described above.
- Acclimatise the planks — leave them in the room for 24–48 hours (check manufacturer guidance).
- Dry-lay your layout — plan your rows and starting point before applying any adhesive.
- Spread adhesive — use the recommended trowel notch size and work in manageable sections.
- Lay planks into wet adhesive — press firmly and use a roller (hire one if needed) to ensure full contact.
- Allow cure time — keep foot traffic off the floor for the adhesive's recommended cure period, usually 24 hours minimum.
When to Call a Professional
While gluing down vinyl planks is within reach of a capable DIYer, consider hiring a qualified flooring installer if:
- Your subfloor needs significant levelling or repair work.
- You're installing in a wet area where waterproofing is also required (waterproofing membranes in wet areas may involve restricted building work — check with your local council).
- The area is large or complex (stairs, multiple rooms, irregular shapes).
- You're unsure about moisture issues in a concrete slab.
A professional flooring installer will get the subfloor prep right and ensure the manufacturer's warranty remains valid. You can find qualified local flooring installers on tradedirectory.co.nz.
