Roofing contractors in Denver need to pay close attention to a growing inspection issue that is resulting in failed inspections, corrective work, and unnecessary labor costs.
The Colorado Roofing Association (CRA) Building Code & Standards Committee recently communicated and confirmed with the City and County of Denver that painting the neoprene or EPDM portion of pipe jack flashings is considered an improper installation.
If your crews, painters, or subcontractors are spraying or painting over pipe jack boots, this needs to stop immediately.
Although many contractors may not realize it, manufacturer installation instructions are considered part of the adopted building code.
That means even if a requirement is not specifically written into Denver’s publicly posted code language, inspectors can still enforce it when manufacturer instructions prohibit a particular installation method.
According to the CRA Building Code & Standards Committee, painted pipe jack boots are now actively being identified during inspections within the City and County of Denver.
These issues are resulting in:
For roofing companies running high production volume, these failures can quickly become expensive operational problems.
Most pipe jack flashings use neoprene or EPDM elastomeric collars. These materials are designed to remain flexible and weather resistant over time.
However, many paint products, including acrylic and synthetic latex coatings, may contain petroleum based components that can accelerate deterioration of the rubber collar material.
Once degradation begins, the flashing can prematurely crack, dry out, or fail, increasing the risk of leaks around roof penetrations.
Manufacturer guidance is very clear on this issue.
For example, IPS Roofing Products states:
“Do not use petroleum-based mastics, sealing compounds, or paints on the collar portion of all flashings, including hard-base, flexible, or rain collars. Do not use paint on elastomer collars.”
This warning exists because the long term performance of the flashing can be compromised when exposed to incompatible coatings or chemicals.
Many contractors assume that if something is not explicitly listed in municipal code language, it is acceptable.
That is not how roofing inspections work.
Building departments routinely enforce manufacturer installation instructions because those instructions are incorporated into adopted building code requirements. This applies to roofing systems, underlayments, flashings, ventilation products, fasteners, and countless other construction materials.
This is also why many jurisdictions require installation instructions to either:
If the manufacturer prohibits a practice, inspectors can fail the installation even if the exact wording does not appear directly on the city website.
Roofing companies should update their procedures immediately to avoid inspection failures and callbacks.
Using factory finished or pre-painted pipe jacks eliminates the temptation to spray exposed collars during painting operations.
If crews are painting nearby components, pipe jack boots should be masked or covered before coatings are applied.
Some contractors are providing temporary or spare boots that can be placed over new flashings during coating operations and removed afterward.
This issue needs to be clearly communicated to:
Roofing companies should immediately revise:
This is more than just a minor inspection technicality.
Small installation details often become major operational problems when crews are not aligned with manufacturer specifications. Failed inspections create production slowdowns, additional labor costs, scheduling conflicts, and customer frustration.
In competitive roofing markets like Denver, operational consistency matters.
Roofing contractors that stay proactive with manufacturer requirements and inspection trends are far less likely to deal with expensive callbacks and avoidable project delays.
At Excel Roofing, staying current with evolving roofing standards, manufacturer requirements, and inspection practices is a major part of maintaining quality control across residential and commercial roofing projects throughout the Denver metro area.