The following information is an example of the process, challenges and solutions we encountered on a recent project.
First, the opening is measured on the inside of the roof and the plaster is taken down. This allows us to see what may be hidden within the roof structure. In this example we found electrical cables that ran through the roof joists, these were re routed by the electrician and placed in a spot directed by the customer for them to have new ceiling lights after the lantern installation.
The joists were then cut and replaced with a timber that ran across, and was fixed to, the remaining sections of the joists. This is necessary so that the roof doesn’t lose any structural integrity from the removal of the sections of the joists.
The timber work is built up to allow for the application of new felt. This is done to the top of the timber work, and the new roof is fitted on top of this, so that there is no risk of water of finding itself into the flat roof.
The lantern is fitted onto the, felt covered, timber with a 150mm sill and guttering. The roof glass is A+ Rated Energy Efficient self cleaning roof double glazing which will maintain the temperature of the room, block noise and will stay cleaner for much longer.
There are options to the finishing on the inside reveals which include trimming (with use of reveal liners and cladding) or plastering with the use of plasterboard.