A COUPLE have added a whopping £230,000 and curb appeal to their home after renovating and painting their roof tiles with paint – costing them just £400. Ellie Rimmer, 27, saved £4,100 by cle… ...

The students set out to change that. They coated two identical off-the-shelf clay tiles with different amounts of titanium dioxide, a common compound found in everything from paint to food to ...