FEMA P55 Coastal Construction Manual, Fourth Edition - Mad Cad

Volume II PRE-DESIGN CONSIDERATIONS 7
Table 7-1. Examples of Flood and Wind Mitigation Measures (concluded)
Mitigation Measure
Adding shutters for
glazing protection
Using asphalt roof
shingles with high bond
strength
Instead of vinyl siding,
installing cladding systems
that have passed a test
protocol that simulates
design-level fluctuating
wind pressures (on a
realistic installed wall
specimen)
Using metal connectors
or fasteners with a thicker
galvanized coating or
connectors made of
stainless steel
Installing roof sheathing
using a high-wind
prescriptive approach
for improved fasteners,
installing additional
underlayments, or
improving roof covering
details as required
(a) Sections in this Manual
COASTAL CONSTRUCTION MANUAL
Cross
References (a) Benefits/Advantages Costs/Other Considerations
11.3.1.2
11.5.1
11.4.1.1
14.2.2
14.1.1
14.2.6
11.5
15.3.1
Reduces the potential for
damage from wind-borne
debris impact during a
storm event; reduces
potential for wind-driven
rain water infiltration
Reduces shingle blowoff
during high winds
Tested cladding systems
reduce blowoff on walls
during high winds
Increases useful life of
connectors and fasteners
Reduces wind and water
damage to roof covering
and interior from a severe
event
Shutters require installation or
activation before a storm event
High bond strength shingles are
slightly more expensive
These systems may cost more
than other materials and may
require additional maintenance
Thicker galvanized or stainless
steel coatings are more costly
Minimal increased cost when
these tasks are done during a
reroofing project
7-9