On the Detail Library, this month we released a brand-new set of bathroom waterproofing details to help you specify and design watertight solutions with confidence.

Waterproofing is one of the most critical aspects of bathroom design, yet it’s often overlooked until problems arise. A poorly waterproofed bathroom can lead to leaks, mould growth, and expensive structural damage – all of which can be avoided with the right detailing.

This collection covers the key methods for protecting bathrooms from water damage, including watertight board systems and liquid applied or flexible sheet systems. We also share guidance on waterproofing extents around baths, showers, and wet rooms.

This set includes:

• Bathroom waterproofing extents – shower over bath
• Bathroom waterproofing extents – shower enclosure
• Bathroom waterproofing extents – wet room
• Bathroom waterproofing extents – wet room with fixed screen
• Bathroom shower tray layout examples
• Bath junction and wall penetration section details (watertight board system)
• Enclosed shower tray section detail (watertight board system)
• Wet room on timber floor section details (watertight board system)
• Wet room on concrete floor section details (watertight board system)
• Bath junction and wall penetration section details (liquid applied or flexible sheet system)
• Enclosed shower tray section detail (liquid applied or flexible sheet system)
• Wet room on timber floor section details (liquid applied or flexible sheet system)
• Wet room on concrete floor section details (liquid applied or flexible sheet system)

If you’ve ever struggled to find clear, reliable waterproofing details, this collection is a must-have. Don’t risk costly mistakes or callbacks – ensure your bathrooms are designed to last.

Visit the Detail Library now to explore and download the full set!