two systems of roofing with Horsham stone-slates, the ‘normal’ double lap
system and single lapping which is unique to Horsham stone roofs.
Problems have arisen, including roof failure due to leakage, because of
uncertainty about the precise details of each system and confusion between
the two. Issues include the appropriate head and side laps and the
mortar mixes used for bedding and at abutments etc. Additionally,
with the introduction of insulation into roof structures and the consequent
need for ventilation, the use of mortar bedding needs to be carefully handled.
|To try to solve these problems a
group of local roofing contractors, architects, surveyors, conservation
officers and others have thrashed out the issues and a guide has been written
which can be downloaded as an Acrobat document. It has been designed to
print two sided on A3 paper and folded to A4. If you can't do this it will
print as A4. The file size is about 2MB so be patient.
|Click here Horsham
|You'll need Adobe Acrobat Reader
to open the file. To get it click here.