& Frère Construction Co., supra, provides a comprehensive
roadmap. That decision exhaustively reviewed both the Cana-
dian and American jurisprudence and provided a useful analysis
of the approach to be taken. As it applies to these facts, it can be
summarised as follows:
(a) Since insurance coverage is a contractual arrangement any
analysis must begin with the wording of the contracts: Alie,
(b) Both policies in this case are standard CGL policies. As such,
each require a “triggering event”, which results in an occurrence causing property damage. This occurrence must be during the policy period, whether or not there is an originating
precipitating event outside the policy period: Alie, para. 91.
(c) Where damage is ongoing throughout multiple policy periods but its extent and nature remain unquantified, there
may be more than one triggering event and as a result more
than one policy found to apply: Alie, para. 151.
(d) If however the full extent of the damage has become a
certainty at a point in time before it is discovered, then the
injury has occurred by that point in time. The discovery will
trigger the policy in place on the date of discovery and
further deterioration will not trigger subsequent policies
because the damage is already complete. “The point when
the full extent of the damages becomes known is the manifestation date”: Alie, paras. 135, 136, 142.
Should Lloyd’s Provide Coverage?
 In my view, Lloyd’s should provide coverage. The events
that have occurred in this matter must be viewed as a continuum. Lloyd’s defence of the town in the first action was an
admission that the discovery of water infiltration through the
foundation walls in July 2008 was a triggering event for the
Lloyd’s policy in force at the time.
 I find as a fact that the owners’ engineering report discussed at para. 5 above, revealed the full extent of the damage to
the owners’ property. It correctly identified the source of the
problem as water infiltration through the walls. It also identified
the location of the floor below the water table as a defect requiring correction. Subsequent events have shown this report to
have been correct.
 I further find as a fact that the water infiltration through
the basement walls discovered in July 2015 was a continuation