Moisture Resistant Plasterboard

High humidity spaces like bathrooms and some kitchen zones need more protection than regular plasterboard can provide. They require moisture resistant plasterboard – often called MR board or green plasterboard.

These panels are not waterproof, but they perform much better in damp or steamy conditions than regular plasterboards.

What is Green Plasterboard?

“Green plasterboard” is simply another name for moisture resistant plasterboard. It is a special type of board made with water-repellent additives that slow down moisture absorption.

Although it is often mistakenly described as waterproof plasterboard, this panel is not waterproof. It performs well against humidity and splashes, but it is not meant for constant water exposure, such as inside showers, unless first protected with a tanking system.

What Is Green Plasterboard Used For?

Moisture plasterboard is fitted anywhere humidity can weaken standard plasterboard.

Its common uses include:

• Bathrooms and kitchen areas (e.g, above sinks or cookers).
• Commercial kitchens.
• Utility rooms and laundry areas.
• Shower spaces (only when used with tanking or suitable tile backing).
• Basements and lower-level floors with limited ventilation.
• Changing rooms and wash zones.

Types Of Moisture Plasterboard

You can select from several types, including:

• 12.5mm MR Board – A balanced option for general domestic use.
• 15mm MR Board – Good for commercial or multi-layer wall systems that need extra strength.
• Moisture Resistant Plasterboard Square Edge Board – Best for ceilings and areas that do not require skimming. Its straightforward design is easy to fit and gives a clean finish.
• Moisture Resistant Tapered Edge Board – Perfect for taping and jointing. They give an even, flush finish.

All options meet UK building regulations and moisture performance, with available brands including Siniat, GYPFOR, Knauf, and British Gypsum.

Benefits Of Moisture Proof Plasterboard

Installing moisture plasterboards offers these advantages:

• Prevents dampness and mould.
• Maintains its structural stability in humid environments.
• Easy to score, cut, and fix on-site.
• Can be tiled or skimmed directly.
• Reduces swelling and surface bubbling.
• Complies with UK moisture protection requirements.

Why Choose Our MR Plasterboard?

Insulation Wholesale supplies top-quality MR plasterboard from renowned UK manufacturers. When you order from us, you get:

• A wide choice of board sizes and finishes.
• Certified products from reputable UK brands.
• Volume pricing with trade discounts.
• Fast nationwide delivery and friendly, knowledgeable support.

Shop moisture resistant plasterboard at Insulation Wholesale today for trusted brands, low prices, and attractive trade discounts. 

FAQ

Where to buy moisture resistant plasterboard?

You can purchase MR boards directly from Insulation Wholesale for reliable brands such as British Gypsum, Siniat, Knauf, and GYPFOR. Order online in your preferred size and edge type, with site or residential delivery available.

What colour is moisture resistant plasterboard?

In the UK, it is typically green and quite easy to identify from standard or fire-rated boards.

Can you use moisture resistant plasterboard in shower?

Yes, but only if it is protected with a tanking or waterproofing system. The board handles humidity well, but it is not designed for constant water contact.

How to fix moisture resistant plasterboard

Join the boards to the timber or metal studs using drywall screws. If on a solid wall, bond them to the wall using approved adhesive. Then tape the joints, skim or tile the surface, and finish as needed.

For tiled areas, apply a primer and waterproof adhesive for long-term protection.