Moisture Resistant Plasterboard Solutions

Waterproof Boards for Bathrooms & Wet Areas

At Armstrong Supplies, we provide trade-grade moisture resistant plasterboard, designed to perform in high humidity environments, including bathrooms, kitchens and showers. Our moisture board options promise long-lasting protection where you need it most.

Trade-only pricing - Built for builders, with up to 70% off via your free Trade Card.
Fast UK-wide delivery - Most orders arrive in 3-5 working days.
Expert advice - Available via live chat, phone or email.
Bulk discounts & tiered pricing - Suited for large orders.

Order moisture-resistant plasterboard online today - built for trade, delivered fast.

Explore our range of Trade Deals for industry solutions at unbeatable prices!

Waterproof Plasterboard at Amazing Prices

Enjoy high-performance bathroom plasterboard without the hefty price tag. Our moisture-resistant plasterboard is industry standard and features exclusive savings for builders, renovators and landscaping professionals.

Top brands stocked - Shop trade-grade plasterboard products from brands like Gyproc and Knauf.
Perfect for wet area installations - Water resistant plasterboards for kitchens and plasterboard for bathrooms available.
BS EN 520 Type H1 or H2 - Choose a top-quality moisture resistant plasterboard for the right level of water resistance.

From moisture boards to full site supply, we keep your project moving with fast delivery, expert support and prices made for the trade.

Register for your FREE Trade Card with us today & enjoy discounts of up to 70%!

Bathroom Plasterboard: Ideal Applications

Plasterboard for Showers Ideal for shower cubicles & wet wall zones.	Waterproof Plasterboard for Kitchens Protects behind cookers & splash zones.
Bathroom Plasterboard Perfect for walls & ceilings in bathrooms.	Water Resistant Plasterboard for Walls Ideal for partition walls with easy installation.
Moisture Board for Utility Rooms Resists steam & condensation.	Commercial Moisture Plasterboard Great for changing rooms & public facilities.

Water Resistant Plasterboard: Technical Specifications

Specification	Details
Board Types	Type H1: < 5% water absorption Type H2: < 10% water absorption
Fire Rating	Euroclass A2-s1,d0 - limited combustibility
Density	Approx 700 kg/m³ for strength & sound insulation
Standard Sizes	2400 x 1200mm 2700 x 1200mm Thickness: 12.5mm
Board Facer Colour	Typically green (may vary by brand)
Installation	Fix to metal or timber studwork Use moisture rated fixings & jointing compounds
Finishes	Suitable for tilling, painting or wallpapering
Compliance	Fully complies with BS EN 520 (H1/H2) moisture resistance standards

Moisture Resistant Plasterboard: FAQs

How quickly can I get moisture resistant plasterboard delivered?

We offer fast UK mainland delivery - most orders arrive within 3–4 working days, with same-week options available. Need it on-site fast? Order online today and we’ll do the rest.

Can I use waterproof plasterboard on ceilings?

Absolutely. Moisture resistant plasterboard is commonly used on bathroom ceilings, especially where steam builds up. Pair it with moisture-rated jointing compounds and paint for a durable, mould-resistant finish.

What’s the difference between H1 and H2 plasterboard?

H1 moisture resistant plasterboard absorbs ≤ 5% water - ideal for shower walls and areas with direct water exposure.
H2 moisture resistant plasterboard absorbs ≤ 10% water - suitable for bathroom ceilings, kitchens, and utility rooms.

Both types meet BS EN 520 moisture resistance standards, but H1 offers higher protection.

Is bathroom plasterboard mould-resistant?

Yes. Bathroom plasterboard (also called moisture resistant plasterboard) is designed to reduce water absorption, which helps prevent mould growth. For high-risk areas like ceilings or behind tiles, we recommend H1-rated boards with moisture-resistant finishing compounds.