2. Repointing shall be executed in the following manner, remove all lichen
and moss where same exists, by
careful scraping, reduce suction of the
old mortar bed and adjacent brickwork by wetting the raked out joint
using
clean water applied with a flat distemper brush. On no account shall the
brickwork be saturated.
On completion of the above preparation for each area to be worked, apply
mortar mix, with perpends
filled first and the mortar pressed firmly into
them and tucked into the bed joints above.
3. Perpends
will be completed in advance of the bed joints but shall not exceed 1m2
are at any
one
time. Repointing to commence top left hand corner
of any elevation and worked across and
downwards in 2m2 areas. All work
to be left clean and the face of work kept free from damage as
the work
proceeds, all filled joints to be neatly and carefully tooled to a weather
struck and a cut
joint, with all loose material being brushed away by a
soft brush. Where work is being executed
during periods of excessively
dry weather, lightly damp down areas on completion of pointing at
each
working period; after initial set and cure has been allowed to take place.
Clean & remove
all mortar
droppings or deposits to adjoining surfaces as work proceeds before
same harden.
4. Mixing of mortars to be strictly controlled using batching boxes
to ensure correct mix, completed elevations shall have all joints and
beds
matching for colour, texture and tone. Any mortar mix which has
begun to dry out or harden will not be
used.
5. All repointed surfaces shall be protected against rain, dust, icy winds and the like, all to the satisfaction of Alexander Pointing. All work shall be suspended during periods of inclement weather of where the ambient temperature is likely to fall below 2 oC.
6. Once complete, site is left in perfect condition. All repointing complete;
all work debris, dust, mortar and work instruments are removed. All surfaces
to be cleaned thoroughly.