Educational

Window reveal cross-section labelled inside and outside, with an internal airtight connection, insulated perimeter gap and external weather seal.

Airtightness detailing around windows and doors...

The gap between a window or door frame and the structure is one of the most common air leakage paths in a building. This UK guide shows how to detail...

Airtightness detailing around windows and doors...

The gap between a window or door frame and the structure is one of the most common air leakage paths in a building. This UK guide shows how to detail...

House cutaway with a blower-door fan and pressure gauge, showing air leakage at service penetrations, window edges and the loft hatch.

How to pass an air permeability test (and what ...

An air permeability (air tightness) test measures how leaky a building is. This UK guide explains what the test measures, how to prepare so you pass first time, where buildings...

How to pass an air permeability test (and what ...

An air permeability (air tightness) test measures how leaky a building is. This UK guide explains what the test measures, how to prepare so you pass first time, where buildings...

Shower cutaway showing tiles, adhesive, a blue tanking membrane and substrate, with arrows marking the fall towards a linear drain.

How to waterproof a wet room before tiling (UK ...

Tiles and grout are not waterproof - the tanking layer behind them is what keeps water out of the structure. This UK guide explains how to waterproof (tank) a wet...

How to waterproof a wet room before tiling (UK ...

Tiles and grout are not waterproof - the tanking layer behind them is what keeps water out of the structure. This UK guide explains how to waterproof (tank) a wet...

Flat-roof cutaway showing a continuous charcoal-grey liquid-applied membrane extending up an upstand, with water directed to an outlet.

How to waterproof a flat roof (UK guide)

A liquid-applied coating is one of the simplest, most reliable ways to waterproof a flat roof - seamless, with no joints to fail. This UK guide covers preparation, detailing upstands...

How to waterproof a flat roof (UK guide)

A liquid-applied coating is one of the simplest, most reliable ways to waterproof a flat roof - seamless, with no joints to fail. This UK guide covers preparation, detailing upstands...

Below-ground room cross-section with external water pressure and continuous blue tanking across the internal walls and floor.

How to tank a basement or cellar from the insid...

Tanking a basement from the inside creates a continuous waterproof barrier that holds back ground water so you can use the space. This UK guide covers preparation, the liquid membrane,...

How to tank a basement or cellar from the insid...

Tanking a basement from the inside creates a continuous waterproof barrier that holds back ground water so you can use the space. This UK guide covers preparation, the liquid membrane,...

Four waterproofing settings show blue wall protection, a charcoal-grey flat roof, blue basement tanking and blue waterproofing beneath shower tiles.

Which waterproofing product do you need? A UK g...

Masonry, a flat roof, a basement, a wet room - each waterproofing job needs a different product. This UK guide matches the job to the right coating or membrane, so...

Which waterproofing product do you need? A UK g...

Masonry, a flat roof, a basement, a wet room - each waterproofing job needs a different product. This UK guide matches the job to the right coating or membrane, so...