Roof structure
Changes in a roof line, movement of rafters or decay in timbers deserve careful inspection. Not every dip is serious, but structural defects should not be judged from appearance alone.
Why Is My Roof Sagging?
This guide looks specifically at why is my roof sagging?: possible reasons a roof line dips or sags, from timber movement to overloading and decay, plus the signs that help decide what to do next.
Read guide →What Is Roof Spread?
Read this if you are dealing with what is roof spread?. It covers how outward movement at rafter feet can affect walls and roof shape in traditional roofs and the practical clues worth noting before repair.
Read guide →How Do Roof Timbers Become Rotten?
For how do roof timbers become rotten?, this page explains how persistent moisture leads to timber decay and what signs may appear in a loft, with a focus on the checks and repair questions that matter for that defect.
Read guide →Why Is There a Dip in My Roof Line?
This guide looks specifically at why is there a dip in my roof line?: when a visible dip is historic and when it may indicate timber or structural movement, plus the signs that help decide what to do next.
Read guide →Can Roof Trusses Be Damaged or Altered?
Read this if you are dealing with can roof trusses be damaged or altered?. It covers why cutting, drilling or removing parts of a trussed roof can create structural problems and the practical clues worth noting before repair.
Read guide →Concerned about the shape of the roof?
Visible sagging or structural movement deserves an inspection that looks at the supporting timbers as well as the roof covering.