Before buying a heater or replacement roof, establish when the room feels cold and where heat is escaping. Glazing, frames, roof, floor, draughts, moisture and the opening to the house form one system.

Diagnose in a sensible order

1. Log indoor conditions, weather and how the room is used.
2. Check controllable draughts, seals and doors without blocking required ventilation.
3. Look for condensation, leaks or failed sealed units that need separate diagnosis.
4. Review the declared performance of roof, glazing and frames.
5. Consider the floor and thermal separation.
6. Have major fabric, heating or structural changes assessed together.

Avoid covering moisture problems or adding insulation that shifts condensation into concealed parts. Energy savings should not be promised without a measured baseline and defined proposal.

FAQs

Can draughts matter as much as the roof material?

They can materially affect comfort, although the dominant cause varies. Record conditions and inspect the whole envelope before selecting one solution.

Why might adding insulation without assessment create new problems?

It can alter ventilation, moisture and surface temperatures or add weight. The existing construction and proposed build-up need review.

Suggested component

A comfort diary and fabric-priority tool that outputs investigation questions rather than estimated savings.

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write.