Roof ventilation is one of those theories that a homeowner hears about, but might not fully comprehend how important it is. Very good ventilation is critical for prolonging your roof's longevity. If Mouldbuster
want to understand why roof ventilation is critical, you need to understand what happens if you don't have decent air motion.
What are the Problems Caused by Inadequate Ventilation
Many homeowners don't understand the problems that inadequate ventilation can cause. They are often expensive and can lead to health problems if not addressed. The built-up warmth and moisture levels can lead to the following problems and many more. Here is why roof ventilation is important:
Shorten roofing system life - Roofing materials and underlayment can deteriorate with the warmth and moisture below.
Sagging or gentle decking - Moisture build-up across the underside of the roof can cause the deck to sag or fail.
Mold/mildew growth - Moist, warn conditions are fantastic for mold and mildew growth.
Rust spread - When moisture builds up, metal surfaces such as claws, truss plates, and hangers can start to rust and deteriorate.
This will keep the A/C running all the time.
Frost and condensation build-up - In cold climates, moisture in the attic can cause frost to settle on the bottom of the roof. In the summertime, 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 informs you that you need to find a roofer into handle venting problems.
The air conditioner is running non-stop even on mild summer days. When heat builds up in the attic, it may cause the air in the air conditioning vents to heat up. So, the air conditioning may struggle to cool the house.
Curled roofing shingles appear just a few years after installation. Asphalt shingles should last 10 to 20 years or more. If you start seeing curling shingles, then it might be a sign that the heat 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 in the attic can condense and trickle on to the ceilings, causing the stains.
There are signs of mold and mildew. Whenever you have some signs of mould and mildew in the attic, ventilation has to become a priority.
If you believe you have inadequate roof ventilation, you will need to do something about it. Failing to deal with problems can dramatically shorten the life span of the roof, potentially lead to mould and mildew, and make your summer cooling bills out of control.
The best way to fix roof venting issues would be to bring in a professional. It might look easy to get air circulating through the loft, but actually it requires some understanding of how a roof operates. If you make an error in your ventilation efforts, you can cause significant damage.
A professional has the equipment and knowledge on how best to correct the ventilation difficulties. Some of the choices can include:
Ridge Cap - This foam filter offers air venting at the top ridge of the roof.
Baffles - Baffles sit down in attic space edges moving air from the soffit vents to the attic to the ridge cap.
Mechanical enthusiasts - In some circumstances, ridge caps, vents, and baffles aren't enough. A mechanical fan might be needed.
Now you understand why roof ventilation is important. Your roofing contractor can help you find the right solutions for your roof.