Pitch Pans – Penetration Pockets – Repair Guide

Pitch pans may provide waterproofing for clusters of roof penetrations such as pipes or irregular shaped objects such as angle irons.

Pitch pans can be repaired with sealant. If the filler material has cracked, pulled away from the sides of the pocket, or is below the level of the top of the pan, remove the loose or damaged sealant material.

Next wire brush and clean the object extending though the pan and the existing metal (where the membrane flashing does not extend into the pan). Then check and evaluate the membrane flashing. It may be best to extend the membrane an inch or two into the pan, which could extend its service life. If needed apply additional membrane.

After you mix and pour the sealant, you simply crown the sealer above the top of the penetration pocket to provide drainage away from the penetration.

Thermoset Membrane

What are Thermoset Membranes?

All thermoset membranes possess the quality of recovery. Since thermoset membranes are rubber like, it will stretch, but return to its original shape when released. The amount the material elongates is reduced by the presence of reinforcement in the membrane.


EPDM – One of the most common single-ply membranes used on buildings today.



HYPALON (CSPE) – Hypalon can have a variety of repair procedures. The repair process can be different from the other type of membranes mentioned.


Surface Coating Deterioration – EPDM, Neoprene, ECH, Hypalon

  1. Thoughly clean the surface of the membrane of all debris, dirt and unbonded coating using a pressure washer (keep the pressure around 700psi to avoid damaging the membrane).
  2. Allow the membrane to dry.
  3. Inspect for loose coating. If any additional loose coating is found, repeat steps 1-2.
  4. Reapply new coating that is compatible with the membrane material and existing coating.

Building Roofing – Industrial and Commercial Roof Systems


Welcome to Building Roofing

Builiding Roofing covers aspects of a building’s roofing system.

Type of Buildings



Commercial property includes

-Retail (shopping centers, retail stores), restaurants, business office, apartment complex, malls, hotels and motels


Many sources consider commercial and industrial properties as being the same. The difference in the two comes down basically to the industry the company is in. The majority of industrial companies produce some type of good within the economy. These building’s are usually not built to attract consumers, and can be tremendous in size. The majority of industrial buildings have low-sloped flat roof systems.

Industrial buildings commonly have roofs made of metal, aluminum, and steel. Some consist of roofing membrane such as PVC, TPO, and EPDM. And some are made up of roofs that are built up, such as modified bitumen.

-Plants, factories, warehouses, and distribution centers



-Religious Buildings

Most church building’s roof consists of shingles and/or metal steep slope and/or low slope. A combination of variations, consisting of different roof applications are commonly found, including sections with single-ply membranes.


On hospitals EPDM is one of the most common found membrane, but it is quickly being replaced by TPO roofing membranes. Many roofing professional believe that TPO has many benefits, which traditional EPDM lacks. Built up roofs using tar and gravel are also commonly found on hospitals. 


The primary purpose of maintenance and repairs for roof systems is to eliminate leaks and problems. Industrial and commercial roofing repairs and maintenance will extend a roof’s overall service life. Having repairs and regular maintenance enhance the original investment made in a commercial roof system. Depending upon the age and condition of an existing roof system, the general level of repairs may be divided into three categories:

  1. Patching Repairs
  2. General Repairs
  3. Major Repairs and Maintenance


Spot patching simply involves the installation of patches to repair isolated deficiend or degraded locations in the membrane or flashing.


General repairs are more comprehensive than spot patching. They may involve repair of numerous deficiencies throughout the roof system.


Major repairs and maintenance can be viewed as a repair regime designed in conjunjuction with various preventive maintenance procedures.