Hello, we're a carpentry contracting firm who provide labour only works, including installation of timber fire doors. We've been advised by the main contractor on one of our jobs that we need to provide certification regarding fire mastic. No one really knows what certification we need, including our H&Safety consultant and the main contractor! Please can someone contact us to advise?

Kind regards,

Laura

The only certificate I am aware of is if a supplier claims a product is fire resistant the they should be able to provide a copy of a fire certificate from an approved testing station that the product will achieve what they claim. Get in touch with your supplier and ask for a copy of the certificate.

Check out https://www.warringtoncertification.com/certifire/penetration-sealing/sealant.html