Most Insurance Companies look favourably on any thatching fire retardants that have been incorporated into the structure of the building (i.e. under the thatch). These normally take the form of a fire felt or fire boarding.
Thatching Advisory Services
For more information on Thatching Fire Retardants please visit www.thatchingadvisoryservices.co.uk

Thatchers fitting thatchbatts and foil to a roof prior to thatching