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Fire risk · requirements · premium

Insuring a thatched roof

Thatch burns quickly and from the outside. That makes acceptance stricter and the premium higher than for a tiled roof.

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Why the risk is different

A thatched roof catches fire from the outside, for example from sparks out of a chimney or from fireworks. Once alight, it is almost impossible to extinguish.

Insurers therefore look at the distance to neighbouring buildings, whether there is a chimney and the condition of the thatch.

Which requirements apply

Almost always a spark arrester on the chimney and periodic chimney sweeping with proof.

On newer roofs, often a fire-resisting layer under the thatch, and sometimes requirements for lightning protection.

Those requirements appear as a clause on your policy. If you do not meet them at the time of a fire, the payment can be reduced.

Maintenance and service life

Thatch lasts thirty to forty years, but its condition determines acceptance. Have it assessed periodically and keep the reports.

A worn roof can be a reason to refuse or restrict own-damage cover.

What you can do

Keep the sweeping certificates for your chimney; they are the first thing asked for after a fire. And report it if you install a wood burner — that changes the risk materially.

Frequently asked questions

The questions we are asked most often about this.

Why is a thatched roof more expensive?

Thatch catches fire from the outside and, once alight, is barely possible to extinguish.

What requirements do insurers set?

Usually a spark arrester and periodic chimney sweeping with proof.

What if I do not meet the clause?

The payment on a fire claim can then be reduced or refused.

Do I have to report a wood burner?

Yes; it changes the fire risk materially.

How long does thatch last?

Thirty to forty years; its condition determines acceptance.

What is best to keep?

The sweeping certificates for your chimney; they are the first thing asked for after a fire.

What is covered and what is not

What is covered

SituationExtendedComprehensive
Fireworks land on the thatch at New Year and the roof catches fireYesYes
A lightning strike sets the ridge alightYesYes
While pruning, you drop a branch on the roof yourself and the thatch layer splits openNoYes
A plumber uses a blowtorch on the lead flashing and the thatch catches fireProvided thatProvided that
Birds pull bundles of thatch out of the roof for nesting materialNoNo
After wet summers the north side becomes overgrown with moss and the top layer decaysNoNo

Fire from outside is precisely the risk you insure against; anything that attacks the thatch slowly remains maintenance.