An airtightness membrane, also known as an air barrier, is a material used in building construction to prevent air from leaking in or out of
Air leakage is a common problem in many homes and buildings, causing energy waste and compromising indoor air quality. Airtightness is a crucial aspect of
Red Letter Supplies has been working hard to bring you a whole new way to shop our range. We are delighted to announce the launch
The nature of construction is that regulations are always changing and so are techniques and products. Red Letter try to keep on top of latest
THE GOVERNMENT HAS announced plans for a €8 billion scheme aimed at reducing the cost of retrofitting homes to make them more energy-efficient. There has
Spray Foam insulation is one of the best ways to insulate, filling in all of the nooks and crannys with no trimming, squashing, or measuring.
The argument over cardboard vs plastic vent cards is a never ending one, with contractors swearing by the ones they prefer. We don’t really want