New
build structural waterproofing and listed building refurbishment project
in Wandsworth, London SW18
This is the
development of twelve new-build luxury town houses with basement
waterproofing systems for Berkley Homes and the renovation and conversion
of an existing three storey Grade II Listed school into apartments . The
single skin brick school building had been derelict with defective
pointing and as a consequence had lateral penetration of moisture across
all elevations rendering it uninhabitable.
The new-build
town houses are built over four stories and to maximise the available
space have been built with extensive basements housing kitchen, study,
utility and downstairs bathroom together with storage space. To overcome
any likelihood of water penetration, John Newton’s Newton 520 20mm stud
membrane was applied to the floor areas of all 12 basements with Kingspan
insulation board and a 50mm screed, thus complying with Type L regulations
regarding the insulating of new buildings.
Cavity Drain Membrane was applied to
damp walls creating a damp proof barrier with built in bonded mesh ready
to accept render.
Part of the
development incorporates an old school building which is Grade II listed
and has been turned into flats and maisonettes. The building suffered from
penetrating damp to the external brickwork on three levels. As it is a
listed building, the facade could not be touched.
The insulating board attaches to Newlath
2000 using dot and dab compound.
Newton 520 was
applied to the damp floor with covering of Insulation Board.
As a Newton Specialist Contractor we
suggested the use of John Newton’s Newlath 2000 damp proof membrane to
the Berkeley Homes architects as an effective and quick method of
providing a damp barrier against dampness and abounding vapour above
ground level A dot and dab compound was then applied to accommodate
insulated drylining board and a skim finish. This technique of damp
proofing is deemed as removable for listed buildings and negates the need
of introducing unwanted chemicals into the construction, it can also be
applied quickly.
This contract was
in excess of 2500sqm of membrane successfully installed. As an approved
Newton contractor we provided the client with a professional solution,
which can also be guaranteed.
This case
study has been submitted by a member and the British Structural
Waterproofing Association accepts no responsibility for its content.
