Flat To Pitched Roof Conversion
by Alcester Roofing
A common reason a flat to pitched roof conversion is opted for, is that
the old roof would be very expensive to replace. When carrying out this kind of
project, new, lightweight, modular structures are built onto the existing roof
structure.
The new structure which can be either timber or metal adds an
increased weight to the building which is taken into consideration when
designing the conversion.
The new pitched structure, whether in timber or metal
is relatively light weight and is assembled on the flat roof itself.
The basic steps to a flat to pitched roof conversion using a steel truss
are as follows:
- A lightweight steel truss is assembled
and erected on site.
- This framework is then
mechanically fastened to the building structure.
- Usually it is then covered in a
breathable membrane and battens. At this stage insulation can also be
fastened.
- Lightweight tile strips are then
installed. Clay tiles or other coverings can be used as an alternative, but
added weight must be taken into account.
- The supporting steelwork and any
additional battens for the aluminium soffit and facia are also installed at
this time.
- The aluminium soffit, fascia and
rainwater goods can then be installed in one operation.
- The installation of down pipes, drain
adaptors and new ground drainage can be completed once the scaffold has been
removed.