Karen is an energy efficiency and sustainability specialist with 20+ years experience. At Which?, Karen cuts through the jargon to uncover the environmental issues that matter most to consumers and ...

The correct insulation specification is critical to the success of any flat roof installation. This CPD module, sponsored by Celotex, outlines the main points to consider UBM’s CPD distance-learning ...

Proper cold roof insulation is key to preventing heat loss, moisture issues, and long-term damage. In this guide, we break down expert tips on materials, installation techniques, and common mistakes ...

I live in a traditional semi-detached house. When it was built it had a space to build a garage. My neighbour and I built garages with a kitchen extension sharing the party wall. Some years ago, my ...

My friend and landlord of my (very cold) flat wants to install a skylight over the bathroom, duct a rangehood through the roof tiles and put proper insulation in the loft. Obviously he will pay for ...

. Q. I hate to still keep you on the "cold roof" subject, but I want to make a cold roof on my 6,000 square foot Victorian 4-unit with 2 furnaces that are located in the attic. What can I do? K.C.

Most houses constructed after 1920 have a gap between the internal and external wall, so filling this cavity with insulation would heat up the room dramatically Credit: Photo: Alamy I have a ground ...