What Is Dry Lining?

Contents:

• Why is dry lining important?
• Tools & materials
• Step-by-step guide: How to dry line a wall
• NVQ dry lining certification explained
• Tips for successful dry lining
• Is dry lining better than plastering?
• FAQs

Dry lining is a construction method that involves fixing plasterboard to internal walls or ceilings to create a smooth surface for decorating, without traditional plastering. It’s beneficial to modern construction and renovation projects because it:

• Doesn’t require drying time 
• Uses fewer resources 
• Much faster to install

All of which help DIY enthusiasts and contractors to save time and money on construction projects by using dry lining, as opposed to traditional plastering. 

Dry lining is used in a wide range of building scenarios, including new builds, renovating residential homes and warehouses.

Dry lining is important because it enables construction projects to be carried out more efficiently. It is more environmentally friendly than traditional plastering for a number of reasons, most notably:

No drying time required: Surfaces can be used/decorated immediately, which speeds up project timelines, saving money in the process. 

Rapid installation: The plasterboard sheets can be quickly assembled with screws to a frame. They can also be assembled via the ‘dot and dab’ technique for masonry. This helps to bring down the labour costs of a construction project. 

Thermal Improvement: Dry lining walls help to create a cavity that can be filled easily with insulation materials. This can help to insulate the property better. It makes the building more environmentally friendly and reduces heating bills as a result. 

Versatility: It can be used to cover uneven walls, brickwork, metal, and timber. This makes it adaptable to use for both new builds and renovation projects. It can be applied over uneven walls, brickwork, metal, and timber, making it highly adaptable for both new construction and renovation projects.

Environmentally friendly: Along with reduced water usage and increased insulation, the core material of plasterboard is gypsum. This is an infinitely recyclable material that won’t lose quality over time. 

Dry lining is particularly advantageous in a few instances, including:

• Hotel renovation: The quick turnaround time means that a hotel can get its rooms and other amenities back in service faster, reducing its losses. 
• New office builds: Enables the creation of fire-rated and impact-resistant plasterboard, perfect for hallways and public buildings.
• Home renovation: The ability to easily and retroactively insulate makes it appealing for homeowners to save on heating costs, whilst increasing the value of their home. 

Below is a comprehensive list of the tools and materials required to install dry lining walls. 

Materials and Tools: 

• Plasterboard sheets
• Plasterboard adhesives
• Adhesive (dot and dab)
• Jointing tape
• Corner beads
• Plastering tools
• Sealant
• Insulation boards (optional)
• Tape measure
• Spirit level
• Drywall saw
• Screwdriver
• Utility knife
• Trowel
• Screws

When selecting your materials and tools, it’s important to purchase the highest quality possible. The higher the quality of the tools and materials, the longer they are likely to last. 

When doing any construction job, safety is paramount. We strongly suggest wearing protective items, including:

• Gloves
• Eye protection
• Dust masks 

This section provides a brief, step-by-step breakdown of how to dry-line a wall. It is not designed to replace a dry lining course, which you can find more information about in the following section. 

 

Phase 1: Preparation

1. Prepare the Wall

Clean and brush or scrape off any loose paint, old plaster, or debris from the wall. Once the wall is clean, apply a coat of sealing product (e.g. PVA glue) to the wall. This will stop the wall from sucking moisture off the adhesive too quickly, enabling it to stick properly.

2. Measure the Plasterboard

Measure the height of your wall and subtract approximately 6–10mm to allow for small gaps at the top and bottom. 

3. Cut the Plasterboard 

Mark your measurements on the plasterboard. Use a utility knife and a straight edge to score deeply through the top layer of paper and the plaster core. Then, snap the board back along the score line and cut the paper backing on the other side. Measure and mark where any electrical sockets or switches will go, and carefully cut the holes before fixing the board.

 

Phase 2: Fixing the Boards

4. Mix the Adhesive

Mix the special plasterboard adhesive with water in a bucket until it is a thick, firm, creamy consistency—like very thick porridge or double cream. It needs to be thick enough to hold its shape on the wall. 

5. Apply the Dabs

Using a trowel or hawk, put large, generous "dabs" of the mixed adhesive onto the wall. Keep the dabs consistently thick, so the board will be straight when pressed on

6. Fix the Plasterboard

Carefully lift the first plasterboard sheet and press it firmly against the adhesive dabs on the wall. Place small temporary packers (offcuts of plasterboard or wood) underneath the bottom edge to create the 3–5mm gap off the floor.

Use a long, straight edge across the face of the board. Gently tap the board with the straight edge or a rubber mallet to push it back until it is perfectly straight (plumb) and level. This is the most important board, as all others will line up to it.

Repeat this process for all remaining boards, making sure the edges of each new board line up tightly with the last one.

 

Phase 3: Finishing

7. Tape the Joints

Once the adhesive is completely dry, apply jointing tape over every joint where two sheets of plasterboard meet. This prevents cracks from appearing. Also, cover the internal and external corners with the appropriate tape.

8. Apply Jointing Compound (Filling)

Mix the jointing compound to a thick, workable paste. Use a filling knife or trowel to spread a thin, even coat of the compound over all the jointing tape and over the heads of any screws/nails used.

Let the first coat dry, then apply a second and sometimes a third, wider coat to blend the joint smoothly into the rest of the board.

9. Sand and Finish

Once the final coat of compound is completely dry, use fine-grit sandpaper to gently sand the joints and filled areas until they are perfectly smooth and flush with the rest of the wall.

Wipe down the wall to remove dust, and it is now ready to be primed and decorated!

The NVQ (National Vocational Qualification) dry lining course, which enables you to become a Dry Liner, covers the following key skills and practical assessments.

• Health and safety: Being able to safely use access equipment and PPE. Also, able to handle emergencies. 
• Productivity: Learning how to work efficiently and meet deadlines. 
• Core Fixing: Being able to set out, assemble, cut and measure stud partitions and wall lining frameworks. 
• Core Boarding: Gaining competency in measuring, cutting, and fixing plasterboards to metal/timber systems. 
• Practical Assessment: The practical assessment is carried out via a combination of:
• On—site assessment: This is where the dry liner is assessed on their setting out, framing, board fixing and specialist work. 
• Evidence Portfolio: The student has to provide visual proof, workplace documents and signed references of their work. 
• Professional Discussion: An assessor will question the student on their methods and quiz them on best practice. 

This is an NVQ Level 2 course, whereupon qualification they’ll receive a Blue CSCS card. They can then become a qualified Dry Liner, a ceiling fixer or a multi—skilled trade person. It’s also possible to continue on the learning pathway and continue to study and get an NVQ Level 3. This dry lining course gives them the skills to supervise dry lining teams, or a Level 4, where they can become a Site Supervisor or Site Manager. 

It’s important that in order to construct high-quality dry lining walls that you follow the following tips:

• Ensure that you prepare properly:  Clean the wall carefully. They must be free of any dust, loose material and/or flaking paint. 
• Use straight frames only: Ensure all frames are straight before fixing the boards. 
• Double-check measurements: Measuring twice and cutting once is crucial for ensuring the accuracy of your measurements. 
• Primer before painting: Always apply a primer—sealer before starting to paint. This improves adhesion, which prevents the paint from bubbling or peeling in the future. 
• Protect pipes and cables: Locate and protect all pipes and cables behind the planned board line. 

Dry lining is the process of applying plasterboard to internal walls or ceilings. This creates a smooth surface that is ready to be painted. It can help to quickly and efficiently finish the interior of a room. Whilst it is a more efficient construction method than traditional plastering, it has some drawbacks, such as being less durable and less versatile. It’s important to carefully consider which method is suitable for your construction project. 

If you’re carrying out your own construction and want to try building dry lining walls, it’s advisable to start with a smaller project. This will help you gain valuable experience to tackle larger projects later on. For more complex projects, it can be of great benefit to consult an experienced Dry Liner.