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Steep Slope Roofing Issues Manufactured Stone Ice Dams Contract Language Thermal Movement NRCA Update
Manufactured Stone
Manufactured Stone A.K.A. Adhered Masonry Veneer Cultured Stone Stone Veneer Claddings that Absorb Water
Composition of Manufactured Stone 1) Portland Cement 2) Aggregates to make it lighter 3) Coloring mixtures
The Problem Water intrusion into the wall cavity
The Other Problem Flashing Replacement
Design Underlayment alone will not prevent moisture intrusion An Airspace and a drainage mat is also required Is Underlayment vapor impermeable?
Flashing Details
Recommendations Determine if the underlayment design is appropriate Direct the building owner to contact a masonry contractor Verify that a capillary break is present Communicate design issues to building owner in writing Use Manufactured Stone Products indoors
Ice Dams
City of Chicago Building Code Due to the winter freeze thaw cycle in Chicago, the creation of ice dams is a common hazard for roofs. To protect the building and walls against water infiltration from ice forming along the eaves, a barrier consisting of a self-adhering polymer modified bitumen sheet that seals around all nail holes shall be used and extended from the lowest edges of all roof surfaces to a point at least 24 inches inside the exterior wall line of the building
Ice Dams Ice dams occur when temperature differences are present in the roof sheathing and snow is present. To prevent ice dams, the roof sheathing should reflect the ambient air temperature. (Actually it should be no warmer than 10 F)
Thermal Boundary
Mechanical Equipment in Attic Spaces
Ductwork in Attic Spaces
Ductwork in Attic Spaces
Other Heat Sources
Displaced or Inadequate Insulation
Ice Dams
Ice Dams The picture can't be displayed.
The picture can't be displayed.
The picture can't be displayed. Ice Dam Remedies Insulation Ice Dam Salt Ventilation Heat Cables Turn your power off Snow Rakes Metal Roofs Insulated Panels Plant Trees to Shade your roof
The picture can't be displayed. Ventilation Can Insulation alone eliminate Ice Dams? 22 F Attic Ventilation Sizing Dormers, Valleys & Cathedral Ceilings 1/300 Rule Moisture Control and Ice Dam Prevention
Ventilation Improving the Attic Ventilation will decrease the roof Sheathing Temperatures by 1 to 2 Degrees F in the winter
City of Chicago Building Code The ice barrier requirement is not necessary on structures that contain no conditioned space
Roof Sheathing Temperatures Solar Radiation and Ambient Air are the significant contributors to Roof Sheathing Temperatures What happens when the roof is covered in snow?
Ice Dam Prevention Attic sheathing remains no more than 10 F warmer than ambient air Use Infrared Cameras to find and eliminate Air leaks and sources of heat in the attic space Maintain insulation levels of R-49 through R-60 Locate ductwork and mechanical equipment within the thermal boundary Ventilate cathedral ceilings with a 2 inch or greater air space Ventilation accounts for 5-10% of the solution
The Importance of Ventilation Lath, Wood Planks, Plywood, and OSB Synthetic Underlayment Balanced NFVA
Contract Provisions Unauthorized Public Adjusting by Roofing Contractors "Why Choose Us? All of our staff is specially trained with storm damage claims and will provide you with the best representation possible." Preceding Slides presented by HENDRICK, PHILLIPS, SALZLMAN, & SIEGEL
Illinois Statute In Illinois, all persons or businesses engaged in the business of adjusting insurance claims must be licensed. Adjusting insurance claims is defined as representing an insured with an insurer for compensation, and while representing that insured either negotiating values, damages, or depreciation, or applying the loss circumstances to insurance policy provisions. 215 Ill. Comp. Stat. Ann. 5/512.52
Illinois Statute No person may engage in the business of adjusting insurance claims, nor advertise, solicit or hold himself out to be in the business of adjusting insurance claims, solicit or hold himself out to be a Public Insurance Adjuster, nor attempt to obtain a contract for Public Adjusting services, unless licensed or registered 215 Ill. Comp. Stat. Ann. 5/512.53(a) Any person who engages in public adjusting without a license shall be guilty of a Class A misdemeanor, and any person misappropriating or converting any monies collected as a Public Insurance Adjuster, whether licensed or not, shall be guilty of a Class 4 felony. 215 Ill. Comp. Stat. Ann. 5/512.53(b)
Illinois Statute A class A misdemeanor in Illinois is punishable by: (1) up to one year in jail; (2) up to two years of probation (formal supervision); and (3) a fine of up to $2,500. 730 Ill. Comp. Stat. Ann. 5/5-4.5-55
UNAUTHORIZED PRACTICE OF PUBLIC ADJUSTING Texas Contractor Case (Court of Appeals of Texas, Fort Worth, August 3, 2017) May 2011 hail storm Roofing contractor visits customer s home June 2011 contract for $15,951.48 $14,775.48 to be covered by insurance $1,176.00 upgrade
UNAUTHORIZED PRACTICE OF PUBLIC ADJUSTING Provision in Texas Case Standard Contract with Homeowners: This Agreement is for FULL SCOPE OF INSURANCE ESTIMATE AND UPGRADES and is subject to insurance company approval. By signing this agreement homeowner authorizes (Roofing Contractor) to pursue homeowners best interest for all repairs, at a price agreeable to the insurance company and (Roofing Contractor). The final price agreed to between the insurance company and (Roofing Contractor) shall be the final contract price.
UNAUTHORIZED PRACTICE OF PUBLIC ADJUSTING Texas Case Outcome (Court of Appeals of Texas, Fort Worth, August 3, 2017) Contract is void Roofing contractor can not recover Remedy is disgorgement: return of moneys paid to roofing contractor Class action status approved
UNAUTHORIZED PRACTICE OF PUBLIC ADJUSTING Free Roofs a thing of the past Roofing and construction contractors can still provide valuable services both in identifying physical damage and building failures and in completing construction projects, but when it comes to insurance claim negotiation and coverage evaluation, it s best to leave it to the licensed professionals, and Don t: Mention possibility of a new roof with no out-of-pocket expense in company literature, advertising, website Submit insurance claim on behalf of an owner Advise or attempt to negotiate with the owner s insurance company Claim to "represent" policyholders with regard to their insurance claims
Thermal Movement All long lasting metal roof systems must accommodate thermal movement If movement is restricted, the system will fail
Understanding Thermal Movement Not Visible to the Naked Eye Failure occurs after dozens of thermal cycles Often misdiagnosed as poor workmanship Repairs do not correct the underlying issues
Formula for Thermal Expansion L=L x Ce x T Change in Length = Beginning Length x Coefficient of Expansion x Change in Temperature Example: A 10 Ft section of Aluminum will move as follows after the temperature changes by 100 degrees L = 120 inches x.0000129 x 100 L =.1548 inches
Type of Metal Coefficient of Expansion (per 1 degree F) Change in Temperature Expansion & Contraction in 10ft Section Expansion and Contraction in 40ft Section Aluminum.0000129 200 F 0.3096 inches 1.2384 inches Galvanized.0000067 200 F 0.1608 inches 0.6432 inches Steel Stainless.0000096 200 F 0.2304 inches 0.9216 inches Steel Copper.0000098 200 F 0.2352 inches 0.9408 inches
Thermal Movement Example of a 45ft Section with thermal movement restricted Failure typically occurs at the midpoint Impact of Solar Radiation
Conclusions Copper systems absorb more heat than painted systems Never install fasteners through the metal liner Ensure that the metal is able to float Areas in direct sunlight will fail first
NRCA Update ProCertification One Voice Roofing Day in DC Career and Technical Education IRE
Contact Info nsabino@deerparkroofing.com