Understanding Why Roof Ventilation Is Important

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Roof ventilation is one of those concepts that a homeowner hears about, but may not fully understand how important it is. Good ventilation is vital for prolonging your roof's longevity. If you want to understand why roof ventilation is important, you need to understand what happens if you don't have decent air movement.



Many homeowners don't understand the problems that insufficient ventilation can cause. They are often expensive and can cause health problems if not addressed. The built-up warmth and moisture levels can result in the following problems and a lot more. Here is why roof venting is important:

Shorten roofing system life - roof materials and underlayment can deteriorate with the warmth and moisture below.

Sagging or gentle decking - Moisture build-up along the bottom of the roof can cause the deck to sag or neglect.

Mold/mildew development - Moist, warn conditions are fantastic for mold and mildew growth.

Rust spread - When moisture builds up, metal surfaces such as nails, truss plates, and hangers can start to rust and deteriorate.

click over here now on air conditioning - The heat of the attic can cause cold air in the vents to warm up. This will keep the A/C running all of the time.

Frost and condensation build-up - In cold climates, moisture from the attic can lead to frost to settle on the bottom of the roof. In the summer, this same moisture can condense and cause water staining on the ceiling.

Tell-Tale Signs of Inadequate Roof Ventilation

There are some signs you will notice that tells you that you will need to get a roofer in to handle venting problems.

The air conditioner is running non-stop even on mild summer days. When heat builds up in the attic, it can cause the air in the air conditioning vents to heat up. So, the air conditioning may struggle to cool the home.

Curled roofing shingles appear just a few years after installation.  If you start seeing curling shingles, it might be a sign that the warmth below is deteriorating the shingles prematurely.

Ceiling leaks seem to have no obvious roof leak. You've got water stains, but the roof is strong. Built-up moisture from the attic can condense and drip on to the ceilings, causing the stains.

There are signs of mold and mildew. Whenever you have any signs of mold and mildew in the attic, ventilation has to become a priority.



If you believe you have inadequate roof ventilation, you need to do something about it. Failing to address the problems can dramatically shorten the life span of the roof, potentially lead to mold and mildew, and make your summer cooling bills out of control.

The best way to correct roof venting issues is to bring in a professional. It might seem easy to get air circulating through the loft, but actually it requires some understanding of how a roof operates. If you make a mistake in your ventilation attempts, you can cause significant damage.

A professional has the knowledge and equipment about how to correct the ventilation difficulties. Some of the choices can include:





Baffles - Baffles sit down in attic space edges moving air from the soffit vents to the attic to the ridge cap.

Mechanical fans - In some circumstances, ridge caps, vents, and baffles are not enough. A mechanical fan might be needed.

Now you realize why roof ventilation is critical. Your roofing contractor can help you find the proper solutions for your roof.
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