DIY & Homeowner Tips Insulation

Airflow Calculation: A Key Component of Roof Replacements

If you’ve started doing your research on roof replacements, you probably have a pretty good grasp on the steps required to complete the project.

However, you have to know the signs of roof replacement rather than repair. You need to decide which material is best for your shingles. And you need to evaluate quotes to choose the best contractor for the job.

Here’s one key contractor differentiator that most homeowners never think of—airflow calculation for proper rooftop ventilation.

The Importance of Ventilation for Your Roof


Take a quick look at your roof and you’ll notice an assortment of vents. This system of intake and exhaust vents regulates airflow through your attic and below your roof, providing protection for your roof.

The combination of petroleum and fiberglass in asphalt shingles and attic insulation has made airflow regulation a critical aspect of roof design and installation. Without a way to manage the airflow, you risk sacrificing the longevity of not just your roof, but of your home itself.

With proper rooftop ventilation, you unlock benefits such as:
  • Greater Longevity of the Roof: In the winter, consider the impact that ice damage has on your roof and home. Although it may be cold outside, your roof and attic can be much warmer then the ambient temperature. The warm air trapped in the attic will heat snow and then refreeze it when temperatures drop. When ice builds up at the edges of your roof, moisture can accumulate in your attic and lead to widespread water damage. Proper ventilation lets this warm air escape, keeping the equilibrium below your roof. And as a result, your roof lasts as long as the materials are designed to.

  • Reduced Energy Costs: Warm air rises, so in the summer months, your attic and roof get very hot. If the air gets trapped, your central air conditioning will have to work overtime to cool the home. And worse yet, trapped warm air in the attic can cause uneven cooling throughout the house. Proper ventilation lightens the load on your AC and cuts energy costs.

  • Moisture Protection: Moisture buildup leads to water damage in the attic and damaged and ineffective insulation. As water seeps through insulation, you can start experiencing leaks in your ceiling, damaging the interior of your home.
It’s great to understand the importance of rooftop ventilation and airflow calculations. However, you shouldn’t have to be the one recognizing potential problems. That’s why airflow calculations are a great way to separate the good contractors from the bad.

What You Need to Know About Airflow Calculations

The amount of ventilation needed for your roof is dictated by an airflow calculation. Contrary to popular belief, simply having vents across the roof doesn’t mean you’re well ventilated.

Instead, you need someone to determine the square footage and net free area of your roof and attic. These numbers will help determine the volume and balance of intake and exhaust vents.

This is something that every roof replacement contractor should include in your proposal. Without it, you’re simply taking the provider at their word and assuming that the ventilation will be done properly. This could lead to regulatory problems somewhere down the line if a permit is skipped and a future roof inspector finds that the roof wasn’t installed properly.

Use an airflow calculation as a barometer for good contractors. If your proposal includes this granular detail, it’s more likely you can trust the contractor for your roof replacement

 

left right
Recent Articles
Who to Call for Your Home Improvement Project: Contractor vs. Full-Service Remodeler
Choosing who to hire for your home remodeling project can be stressful. Depending on the work you need done, there could be hundreds of options in...
Home Living
Read More
Maintenance Tips for Your Vinyl Siding
Vinyl siding is the most popular siding option in the United States with good reason. It comes in a variety of colors and styles, is quite durable,...
DIY & Homeowner Tips
Read More
Checklist: Five Areas of Your Home to Inspect Every Fall
While spring is usually associated with fresh home repairs, fall preparations can save you from costly problems when winter storms and freezing...
DIY & Homeowner Tips
Read More
Fall Gutter Cleaning Tips: When to DIY and When to Call the Pros
With falling leaves and the remnants of summer storms, fall is an important time to inspect and clean out your gutters. Debris and water sitting in...
DIY & Homeowner Tips
Read More
How to Extend the Life of Your Roof
Your roof is a critical component of your home, keeping you dry during heavy spring storms and warm in freezing winter temperatures. Even though it...
Roofing
Read More
Is It Time to Replace Your Windows? What to Look for
Even high quality, professionally installed windows have a set lifespan. The windows on your home can last around 10 years, maybe a bit longer if...
Education
Read More
Why Fall is a Good Time to Replace Your Roof
With over 30 years of experience working on Maryland roofs, Brothers roofing consultants are often asked, "what is the best time of year to replace...
Roofing
Read More
8 Important Questions to Ask Before Finishing Your Basement
Many homeowners think basement finishing will be a simple project. It's just putting down some flooring and hanging drywall, right? Well, that's a...
Read More
Vinyl Siding: What’s on the Outside Counts
Modern vinyl siding has come a long way from the practical but boring beige slabs that coated suburban homes, making them indistinguishable from one...
Home Living
Read More