Roofing - Lead work
LEEDS
ROOFING CONTRACTORS DIRECTORY
LEAD
WORK.
If lead work is to be
properly fitted it is essential to to follow certain
rules of good practice. Some of the common causes of failure
are due to oversizing often coupled with
overfixing.
  
In recent years, lead
sheet introduced for the roofing within the UK is mainly
manufactured by the continuous cast method.
Lead sheet, one of the
oldest and most durable roofing materials, it has been known to
last for hundreds of years. Anyone carrying out this
type of work should have a good understanding of the most common
faults and be able to make a recommendation for the appropriate
action to remedy the situation.
General Rule:
If lead roofing, cladding or
flashings is generally in good condition maybe just
a few splits or tears, it's probably worthwhile to
carry out appropriate repairs. More serious damage and
failures will require careful consideration to the renewal of the
leadwork. Before beginning any repair or renewal work, check
the following:
-
Are the fixings poorly
located restricting movement.
-
Inadquate fixings or
worn.
-
Serious Tears, Cracks or
Ripples.
-
Unsuitable bedding,
Underlay or decayed Underlays.
-
Corrosion signs on the
front or back of the Lead.
The usual signs of corrosion from
condensation are white streaks running out from under lap joints
(not to be confused with run-off stains), and a white powder
forming under the lead.
 
Making the decision to renew
or repair a ridge, valley gutter lining or any other
which, may be in a fair condition and on its own worth
repairing to extend life by another ten to fifteen years is ok. But
if the adjacent slated or tiled areas are to be renewed, the
relatively low cost of re-laying the lead gutters would be well
worth accepting.
SEALING TAPES:
We do not recommend the
use of sealing tapes because repair tapes don't
last.
Flashings and
weatherings need to be securely fixed, high
winds can show up many weaknesses in fixing details. Cover
flashings should be wedged into brick or stone walls with lead
wedges. Step flashings should be fixed with a wedge to each step.
Fixing clips should be used for all free edges of
lead.
 
Lead is a reliable
material. In the hands of a person trained and experienced
in working with it. It can enhance the look of
a building and keep it dry for many
years.
  
Valley
Flashing
Ridge
Flashing
Lead Sheet Sealant
|
