PAINTING AND DECORATING GUIDES
Thermal & Fibre Lining Papers
Improve comfort, insulation, and surface quality — the smart way. Old walls can often feel cold, uneven, or hard to decorate. At Drew Decor, we use a range of specialist liners to transform tired or uneven walls into smooth, insulated surfaces — ready for painting or wallpapering. These products not only help paint look better but also make rooms warmer and reduce condensation.
Why We Use Liners
When walls are stripped of old paper or have been redecorated many times, the surface can become uneven, rough, or cold to the touch. Applying a specialist liner gives us:
A smoother surface for painting or wallpapering
Better heat retention and comfort
Reduced risk of condensation or mould
A professional, long-lasting finish
Depending on the wall type and the customer’s goal, we use three main options:
KV600 Thermal Liner
The KV600 Thermal Liner is the premium choice and best for: Cold exterior walls, north-facing rooms, or problem areas with condensation. The Wallrock KV600 Thermal Liner is a 6mm thick insulation liner made from fleece-like material. It acts as a thermal barrier between cold plaster and your room air.
Benefits:
Significantly reduces heat loss through walls
Warmer rooms and lower energy bills
Helps prevent condensation and mould growth
Softens sound and improves comfort
Can be painted or wallpapered over once installed
Our Process:
We prepare the wall and ensure it’s clean, dry, and stable.
Apply specialist thermal adhesive evenly across the surface.
Carefully hang the KV600 liner, butt-jointing each panel.
Smooth out joins, then cross-line or lightly sand for a perfect finish.
Finish with paint or wallpaper of your choice.
Wallrock Thermal Liner
The Wallrock Thermal Liner is the mid-level option and best for: Slightly cold or uneven walls that need a boost in comfort and finish quality. This is a thinner, flexible insulation liner that provides a noticeable warmth improvement without the depth of KV600.
Benefits:
Adds thermal comfort and saves energy.
Hides small cracks and imperfections.
Reduces condensation risk.
Quick to apply and great value for money.
Can be painted or wallpapered directly.
Our Process:
Fill and sand walls for a stable surface.
Apply thermal adhesive evenly.
Hang Wallrock Thermal Liner smoothly and precisely.
Finish with a coat of paint or decorative wallpaper.
Fibre Liner
The Fibre Liner is the standard option and best for: Best for: Older walls that just need a smooth, solid base for painting. Fibre liners (sometimes called “Wallrock Fibreliner”) are strong, breathable papers designed to reinforce walls and prevent cracks showing through paint.
Benefits:
Smooths out uneven walls.
Prevents hairline cracks from reappearing.
Breathable and ideal for older plaster.
Great surface for painting.
Professional, clean finish.
Our Process:
Strip old paper and clean the surface.
Fill cracks and lightly sand.
Hang fibre liner using heavy-duty adhesive.
Once dry, we apply your chosen paint colour for a smooth, fresh look.
Which One Should You Choose?
Situation Recommended Liner Benefit:
Cold, damp, or north-facing room KV600 Thermal Liner Best insulation and comfort.
Slightly cold or uneven walls Wallrock Thermal Liner Good warmth and value.
Old, plastered walls needing a smooth base Fibre Liner Smooths and strengthens for painting.
If you’re unsure, we’ll inspect your walls during the quote visit and recommend the best option for your space and budget.
Aftercare & Maintenance
Treat walls as normal once decorated — paint and wallpaper will last longer.
Avoid steam exposure for at least 48 hours after completion.
Enjoy warmer, smoother walls for years to come.
