Analysis: The main function of commercial roof insulation

Proper roof insulation is key to protecting your commercial building from leaks caused by thermal expansion and contraction. This post explains how insulation improves roof performance and why it’s crucial for long-term durability.

Infographics
January 4, 2021
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Did you know that roof insulation plays a huge role in the performance of your commercial roofing system? With winter in full swing here in Bakersfield, CA, it’s time to prepare your facility for thermal expansion.

Here’s how it works: When heat hits your roof, the materials expand. When the temperature drops, those same materials contract. Over time, this constant movement is one of the leading causes of roof leaks.

That’s why it’s crucial to design a roofing system that accommodates this natural movement. The right insulation can make all the difference, and we recommend it based on factors like:

  1. Location
  2. Roof deck materials
  3. Local building codes
  4. The type of roof system you have

To help building owners and managers better understand this, we’ve created an easy-to-follow infographic:

drip edge flashing for residential

Drip edge

Drip edge is usually installed at the edge of your roof underneath your shingles. A properly installed drip edge leads water away from the fascia board.

Roof flashing

Flashing is installed where shingles meet with other surfaces (chimneys, walls, eaves, etc). Flashing also plays a role in protecting your roof deck from water.

Sealants

Sealants are added to help with extra leak protection and increase the life of the roof. They're especially helpful on flat roofing systems where water tends to form puddles.

Foot traffic and warranties  

During a re-roof, workers are moving around constantly, and sometimes that leads to accidental damage. Keep an eye out for excessive footprints, leftover debris, or any other signs of carelessness. A good roofing crew will clean up daily and notify you immediately if something gets damaged.  

Now, let’s talk about warranties...

Even with the best tips, nothing beats the peace of mind a solid warranty provides.  

Be sure to understand what’s included—and more importantly, what’s not. Ask specific questions about exclusions and whether regular maintenance is required to keep the warranty valid.  

Keep in mind that craftsmanship and manufacturer warranties are separate. The manufacturer warranty covers your shingles, while the craftsmanship warranty comes from the contractor.  

If you’ve chosen a specific shingle, make sure your contractor is a certified installer for that brand. Any reputable roofing company should back their work with at least a 10-year warranty.  

Roof replacements are a big investment, and mistakes can happen during the process. A good warranty ensures your investment is protected and saves you from unexpected costs later.  

If you’re planning a roofing project, these tips will help you feel more confident managing the process. Got questions or ready to book a consultation? Reach out to us—we’re happy to inspect your roof, answer your questions, and provide a detailed, no-hidden-cost quote.

Superior Roofing

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