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|A FORMAT FOR REGIONAL ROOFING GUIDES|
format was produced by the English Heritage Stone Roof Working Group. It
is part of the best practice guide and lists the topics which could be
included in regional roofing guides. Regional guides have been published
for Derbyshire, North Wiltshire and Collyweston.
The SRWG format can be downloaded in .pdf format by clicking here > SRWG Guide 26KB (You will need Adobe Acrobat. Download it here.) If you would like the guide in Word format to develop your own regional guide contact Terry.
2 Characteristics of stone-slates
and their sources
3 The winning and preparation
of stone slates including:
- the random nature of production and the probable fingerprint of a quarry.3.2 Treatment of edges and surfaces and local policy
3.3 Local sources of supply
3.4 Use of second-hand stone-slates, local and national (EH CADW HS) policy.
4 Original roofing techniques
- stone-slate at eaves and gable parapet level including special or local methods4.4 Local practices:
- local slating gauge calculations5 Roofing and re-roofing
5.1 Condition surveys
- slates5.2 Defects in stone roofs including a discussion on the advisability of careful repair, and the difficulties that are generated by careless unsympathetic repair.
5.3 How to decide between repair or re-roofing
5.4 Retention of original details
- existing details5.5 Description of bad repairs and other bad practice.
5.6 Options and local policy on use of
- cleft laths or sawn battensThe local policy should cover three main options and these should not be mixed in practice:
- completely authentic covering where the underside appearance is critical.5.7 Discussion of the options and local conservation policy for re-using existing slates and the inclusion of replacement slates to achieve the best visual results. Inadvisability of turning slates from their original orientation.
5.8 General specification followed by specifications for the various details of the roof: ridges, eaves, verges, gables, abutments, hips, valleys, chimneys, rooflights, pipes, leadwork, guttering etc. Each of these items should be dealt with in three sections:
- details of the historic methods used.Ideally these sections should be structured to emphasise the reasons for the recommended local practice.
5.9 Choosing a slating contractor
- SRWG's Best Practice guide5.10 Small scale repair work
5.11 Assessing the suitability of old stone-slates
5.12 Sorting slates and setting out the roof
5.13 The slating process - what should happen
6 Model specification for stone-slating
7 Other sources of information
(The SRWG is willing to comment on
reference documents and may be willing to make them available through this
website. Contact Terry )