How to stop condensation in loft spaces

A loft conversion bedroom with two beds and exposed timber beams
(Image credit: Future)

Condensation in loft spaces is more common than you might think, and it's something you shouldn't ignore. Ever opened your loft and been greeted by an unexpected musty smell or visible moisture dripping from the inside of your roof? That's a tell-tale sign that you have an issue.

Most lofts are little more than cold, dank storage spaces visited once a year to retrieve Christmas decorations. So while it's all too easy to spot condensation on windows, many of us overlook the risks to roof structures caused by damp in our lofts. 

Ian Rock

Chartered surveyor Ian Rock MRICS is a director is and the author of eight popular Haynes House Manuals, including the Home Extension Manual, the Self Build Manual and Period Property Manual.

Ian is also the founder of Zennor Consultants. In addition to providing house surveys, Zennor Consultants provide professional guidance on property refurbishment and maintenance as well as advising on the design and construction of home extensions and loft conversions, including planning and Building Regulations compliance.

Ian has recently added a 100m2 extension to his home; he designed and project managed the build and completed much of the interior fit-out on a DIY basis.

With contributions from