Period and listed homes: insulation that respects old buildings

Old buildings need to breathe. Natural, moisture-friendly insulation on the loft floor, with careful attention to airflow, is usually the right approach.

Illustration: a period home

At a glance
What suits itBreathable natural materials such as sheep’s wool
Watch forOld timbers, lime plaster, damp
ConsentListed buildings may need consent; check first
AirflowEssential; never seal an old roof up

Old houses work differently

Traditional buildings were built from materials that let moisture move through them. Trap that moisture and timbers and plaster suffer. Insulation needs to work with the building, not against it.

Why wool fits

Sheep’s wool takes up and releases moisture and is gentle on old structures. Laid on the loft floor, with the roof left ventilated, it keeps heat in without trapping damp.

Permission

If your home is listed, check with your local council whether consent is needed before work in the roof. We’re happy to describe the work in writing for them.

Common questions

Do I need consent to insulate a listed loft?
Possibly. Check with your council’s conservation officer first.
Is sheep’s wool the only option?
It’s often the best fit for old buildings, but we’ll explain the alternatives honestly.
Will you fix anything to my old timbers?
No. Insulation goes on the floor, between and over the joists.

Find out what your loft needs, in plain words

Tell us about your home. We’ll explain the options and send a written quote. No obligation.

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