Which solar panels are certified for use with GSE in-roof mounting? When using an in-roof PV mounting kit, for full MCS coverage, both the mounting and panel need to be tested together as a full kit by a fire testing body. GSE has a full list of PV panels that have a BROOF(t4) fire classification when installed with their products listed on their MCS 012 certificate. That list of panels can be found on this certificate . For panels that are not on that list, a fire proof membrane can be used as part of the install. The suitability of the membrane must be checked with the local building control authority. If you require help finding a suitable panel for your project, please reach out to our sales team.