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Roofs

We have had experience with many kinds of roof systems including but not limited to roofs framed with wood or metal that are clad with EPDM (ie, ethylene propylene diene monomer), built-up bituminous roofing, standing seam metal roofing, asphalt shingles, slate, wood shingles, clay tile, terra cotta tile and concrete tile, among others. We have seen many common design defects and installation deficiencies with roofing systems. It would be impractical to list every variation on roof design defects and installation deficiencies we have encountered since they so often are the result of unique designs or new and creative ways for contractors to make errors in installing these systems. Nevertheless, among the more common design defects and installation deficiencies are:

1. Design Defects

Ice damming – One of the more common design defects is a failure to design adequate ventilation in the attic of the roof system. As a result, since heat rises, it tends to build up in the attic. With no place to escape, the heat causes the temperature of the roof cladding closest to the ridge (ie, the top ) of the roof to become elevated to a point where snow or ice melts. As the snow and ice melt, they roll down the roof as water and re-freeze as the temperature of the roof cladding materials closest to the eve (ie, the bottom) is below 32 degrees Fahrenheit. That freezing water tends to get up underneath the roofing materials or the siding and causes mold and damage to sheathing, framing and other building components.

Inadequate storm water flow – Appropriate attention must be paid to the design of the roofs, gutters and leaders so that storm water can flow off of the roof at a rate of speed and in a volume that can be handled by the roof system.

Failure to Detail Roof Flashings – Use of ice and water shield (“IWS”) and various flashings is critical to the proper functioning of a roof system. Design drawings often fail to detail the required flashings and IWS so that subcontractors know exactly what needs to be installed and the locations in which it needs to be installed. Common failures include lack of detailing of chimney and chimney cricket flashings, flashings for roof-wall interfaces, flashings around the perimeter of flat roofing systems, failure to detail tie-ins between different kinds of roofing systems that adjoin each other and failure to design proper drainage on flat and other roofing systems, among many others.

2. Construction Deficiencies

Perhaps the most common deficiencies in all of our construction cases are roof related construction deficiencies. It is simply amazing how often subcontractors and general contractors do not read the manufacturer’s installation specifications for the roof materials being installed. Deficiencies commonly seen include: lapping the felt paper underlayment backwards; failing to install–or failing to install sufficient quantities of– IWS; failing to install battens or fabricating battens from non-conforming materials or in a manner at variance with manufacturer’s installation specifications; missing flashings or failing to install flashings correctly; improper nailing or lapping of shingles; failing to properly seal pitch pockets through which HVAC , electrical or plumbing conduit/pipes were run or other penetrations through the roof; failing to properly detail the junction of one roof system to another or a roof system to a rake wall; and failing to install gutters of adequate size or in a manner consistent with the applicable building codes, among many others.

A careful evaluation of the building by a qualified expert is necessary in order for you to understand the condition of the roof system, the causes of any deficiencies in design, materials or construction methods, and the extent of the damages resulting therefrom. Once that information is compiled, counsel can help you determine what your options are for recovering your damages and getting your building fixed.

Multiple locations to better serve your needs—

Princeton, NJ

993 Lenox Dr, Building 2
Lawrenceville, NJ 08648
Phone: 609.896.9060
Secondary phone: 800.535.3425
Fax: 609.896.0629
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Marlton, NJ

40 Lake Center, 401 NJ-73, Suite 130
Marlton, NJ 08053
Phone: 856.874.4443
Secondary phone: 888.241.7424
Fax: 856.874.0133
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Yardley, PA

777 Township Line Road, Suite 120
Yardley, PA 19067
Phone: 267.907.9600
Fax: 267.907.9659
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New York, NY

5 Pennsylvania Plaza 23rd Floor
New York, NY 10001
Phone: 800.535.3425
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Philadelphia, PA

The Bellevue 200 S Broad St #600
Philadelphia, PA 19102
Phone: 267.907.9600
Secondary phone: 800.535.3425
Fax: 215.564.6245
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Bridgeton, NJ

78 W Broad St
Bridgeton, NJ 08302
Phone: 856.874.4443
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