PFM 21 3 - Page 11

Damp for the Discerning with New Safeguard
afeguard Europe – the UK’s
leading specialist in dampproofing and waterproofing
technology – has revised its CPD
seminar programme on the two major, and commonly confused, causes
of damp to simultaneously provide
either broad or in-depth briefings on
this troublesome property defect.
When tackling any kind of damp, the
single most important factor is correct
identification of, first, type and then,
second, cause. Though many damp
cases are often instantly attributed to
rising damp, there are several potential
types including condensation, rain penetration, and construction moisture and
contaminating salts which attract moisture.
The first in the new RIBA-accredited
CPD series from Safeguard – Dealing
with Dampness – is an overarching introduction to the problems of rising and
penetrating damp that will give architects, builders and other specifiers
enough information to help them tell the
difference between the two and determine sources, while giving options on
how to remedy the situation.
The 40-minute seminar is delivered in
the clients’ workplace, and covers existing and new technologies for dealing
with the different forms of damp, and
highlights why some diagnostic equipment – such as certain damp meters –
can lead to confusion if used blindly.
For those seeking in-depth understanding of the various types of damp, the
overview CPD is underpinned with focussed seminars on specific kinds.
Penetrating damp
There are many reasons why rainwater
can penetrate masonry walls: from porous Victorian bricks to unfilled perpends. And there are an equal number
of issues that can make the problem
worse, including poor maintenance of
gutters, bad detailing and building alterations.
The Dealing with Penetrating Damp
seminar sets out four steps to deal with
both the causes of penetrating damp
and the factors which can exacerbate
the problem. The four steps are: assessing rainwater routes and exacerbating factors; blocking the primary
paths for water penetration; controlling
the exacerbating factors; and installing
back-up in the form of a damp-resistant
internal system.
The CPD walks attendees through all
the issues and considers how each can
be treated. It also addresses exacerbating factors including defective guttering
and downpipes, missing cills, poorly-de-
signed details, the aspect of the building and the use of non-breathable
coatings. The one-hour long seminar
also provides an update on some of the
latest solutions – such as masonry protection creams.
Rising Damp
Rising Damp: Causes and Treatment
looks at everything from the physics of
rising damp to the chemistry of damp
proof courses (DPCs), providing a thorough briefing on what causes rising
damp, and the range of potential treatments available, including recent developments.
Rising damp occurs because capillary
action results in water travelling
through pores in masonry materials,
with the height it reaches governed by
a combination of pore size and the rate
of evaporation from the surface of the
There are several treatments for rising
damp – some more effective than others – which the seminar explains. The
most popular treatment worldwide for
rising damp is chemical DPCs which
have developed from the early silicone
or stearate liquids to silane/siloxane
cream injections from 2000 and in
2014, to silane rods. The latter have
been shown to be the most effective,
as they ensure the even dispersion of
the waterproofing molecules which is
vital to forming a complete DPC.
Though specifiers must be knowledgeable about many forms of damp, it is
important to note that they often coexist with each other and holistic approach to treatment tends to give the
best results. Safeguard’s qualified and
experienced staff can offer technical
advice and support to contractors,
specifiers and owners on damp-proofing solutions.
For details of Safeguard’s Dealing with
Damp CPD programme, visit
Reader Reply: 213001


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