1. Getting the Most Out ofGetting the Most Out of
Your Roof AssetYour Roof Asset
2. Roof Work OptionsRoof Work Options
• Patch and Repair?Patch and Repair?
• Maintain?Maintain?
• Replace?Replace?
3. Roof Work OptionsRoof Work Options
• Age of roofAge of roof
• Type of roofType of roof
• Type of insulationType of insulation
– moisture contentmoisture content
• Age of BuildingAge of Building
• Space usageSpace usage
• Needs of building ownerNeeds of building owner
4. Roof Work OptionsRoof Work Options
• Roof showing signs of agingRoof showing signs of aging
– exposed feltsexposed felts
– blueberriesblueberries
– deteriorated base flashingsdeteriorated base flashings
• Good workmanship during originalGood workmanship during original
constructionconstruction
– not leaking excessivelynot leaking excessively
6. Wet InsulationWet Insulation
• Wet Insulation Does Not InsulateWet Insulation Does Not Insulate
and Can Cause Structural Damageand Can Cause Structural Damage
to the Deckto the Deck
• A Non-Destructive Scan of RoofA Non-Destructive Scan of Roof
May Be Needed to Locate WetMay Be Needed to Locate Wet
AreasAreas
7. Roof Work OptionsRoof Work Options
Restoration / RefurbishRestoration / Refurbish
• Identification of weak or defectiveIdentification of weak or defective
elements that require attentionelements that require attention
• Infrared Thermal ScanInfrared Thermal Scan
• Replacement of wet insulation /Replacement of wet insulation /
membranemembrane
• Reinforcement of membraneReinforcement of membrane
flashingflashing
8. Roof Work OptionsRoof Work Options
Restoration / RefurbishRestoration / Refurbish
• Parapet or wall waterproofingParapet or wall waterproofing
• Correcting roof drainageCorrecting roof drainage
• Repair of membrane defectsRepair of membrane defects
– blistersblisters
– ridgesridges
– splitssplits
• Re-working and / or re-sealingRe-working and / or re-sealing
metal counter flashingmetal counter flashing
9. Roof Work OptionsRoof Work Options
Restoration / RefurbishRestoration / Refurbish
• Resaturation of roof membraneResaturation of roof membrane
• RegravelingRegraveling
19. Roof Work OptionsRoof Work Options
Restoration / RefurbishRestoration / Refurbish
• Insulation and most of the feltsInsulation and most of the felts
have never seen daylighthave never seen daylight
• Almost like newAlmost like new
• Original roof installation was goodOriginal roof installation was good
(Please see flipchart)(Please see flipchart)
20. Roof Work OptionsRoof Work Options
Restoration / RefurbishRestoration / Refurbish
• Not all roofs are good candidatesNot all roofs are good candidates
for roof restorationfor roof restoration
• Certain criteria must be metCertain criteria must be met
21. Roof Work OptionsRoof Work Options
Restoration Key FactorsRestoration Key Factors
• Insulation conditionInsulation condition
• Type and thickness ofType and thickness of
insulationinsulation
• # of plies# of plies
• Lamination betweenLamination between
pliesplies
• Amount of top pourAmount of top pour
• Condition of feltsCondition of felts
– moisturemoisture
– rottingrotting
– shrinkingshrinking
• Type of feltsType of felts
• Historical - leaksHistorical - leaks
• Quantity of anomaliesQuantity of anomalies
• AgeAge
• Flashing type / conditionFlashing type / condition
• Number / type ofNumber / type of
projectionsprojections
• Roof TrafficRoof Traffic
• Use of building - R-valueUse of building - R-value
22. Roof Work OptionsRoof Work Options
RestorationRestoration
• Typically 1/3 to 1/2 the cost of roofTypically 1/3 to 1/2 the cost of roof
replacementreplacement
• ‘‘Good bang for your buck’Good bang for your buck’
