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Restoration FAQs


1. What are the key differences between silicone and polyurethane caulks?

The primary difference is at the chemical level. Polyurethane is an organic material. Silicone is an inorganic material. The effects of breakdown of silicone and polyurethane depend on the sealant’s chemical makeup. In the presence of UV light, an organic material (polyurethane) will eventually revert to its natural state, thus changing properties and deteriorating over time. An inorganic material (silicone) will not. While a polyurethane joint’s lifespan is typically 5-10 years, a silicone joint’s lifespan is typically 20+ years. Read more in our blog here.

2. What is your area of expertise in Exterior Building Services?

From exterior caulking and sealing, waterproofing, and specialty coatings to masonry and powerwashing, PCM Services is responsive to all of your needs and works safely and seamlessly around your clients, tenants, or residents. Details about each service can be found here.

3. What is the difference between caulk and sealant?

These two terms are used interchangeably in the construction industry, but in general, sealants are those products that are more highly engineered, and perform their functions at a higher level than products referred to as “caulks.” Caulks are asked to fill a gap, with very little required in the way of movement or durability. They may have an integral color, or may be designed to be painted to match surrounding surfaces. Sealants are products that generally are capable of greater movement, and are expected to withstand the effects of exposure to the elements for a much longer time. Some sealants may not move very much, but are engineered to have superior structural capabilities, as with structural silicone sealants, or to withstand exposure to fire, as with products designed as firestopping sealants.

4. What size jobs do you perform?

Big to small, we do it all – from complete façade caulking replacement projects to quick turnaround small repair jobs, and everything in between. We are ready to respond and deliver specialized care and services for preservation, repair, and preventative maintenance today.

5. What kind of warranties do you offer?

All PCM jobs come with a one year warranty. Depending on the scope of the job, such as replacing all joint sealants on a façade or elevation, we can provide special manufacturer warranties lasting up to 20 years.

6. What are your safety precautions and standards for exterior building projects?

“Safety doesn’t happen by accident.” The safety and protection of our employees and the general public is of the utmost importance to us. We have a full time safety manager and training program devoted to the cause. Specifically speaking to restoration jobs, our primary focus is on fall protection and personal protection.

7. Do you apply garage traffic coatings?

Yes – quite frequently. PCM has the industry knowledge and experience to diagnose and recommend garage maintenance and repair solutions and the trained and highly skilled tradesmen to deliver them. For a list of garage maintenance and repair services we offer click here. If you don’t see what you’re looking for, give us a call at (301) 595-3700.

8. What is a “sealer” and what is it expected to do?

“Sealers” (water repellents) repel water by reducing absorption. They do not waterproof walls. This is a common misconception. Proper flashings, sealant joints, and other necessary maintenance processes are critical in properly protecting the wall.