Modern houses are more airtight than those from the past because of the greater use of energy-efficient doors and windows, insulation, and home wraps. As a result, modern homes can’t breathe easily, making roof ventilation more crucial than ever before.
Unfortunately, not all roofing ventilation system is suitable for your house, hence why a thorough inspection is needed before installation. Let us look at the advantages and disadvantages of roof ventilation.
Advantages of Roof Ventilation
In colder climates, roof ventilation is needed to maintain a warm room temperature. Surprisingly, ventilation is just as necessary in hotter climates for the opposite purpose of keeping the roofing cold. As a result, they aid in the regulation of the ambient temperature levels inside the home.
Moisture in the roof is drawn to the windows in the same manner as it is drawn to cold places. When those areas get damp, they decay, and mold begins to form. Rot destroys the roof decking and the framing, which can contribute to saggy roofing.
As a saggy roof leak, it aggregates the moisture issue in the roofing and ultimately causing major issues in your living space below. Roof ventilation allows moisture to escape before mildews and molds grow, preventing further damage.
Extended Roof Lifespan
Ice damming occurs as heat from the roof mixes with the sun’s heat. This ultimately causes harm to your entire roofing structure, attic, and even the interior walls of your house.
Furthermore, as your roof overheats, the adhesive underneath the roof shingles warms up. As a result of this, they can become brittle and inefficient over time. This is where effective ventilation can come in handy. It aids in the escape of warm moist air before it melts the ice and snow on your roofing. It stops roofs from being fragile.
Reduced Energy Expenses
Effective roof ventilation eliminates hot air from your home by improving air circulation. This lowers the strain on your ac unit, and a less-worked air conditioner means reduced energy costs. Furthermore, the reduced roof temperature favors your air conditioner by making the ductwork and interior air cooler.
If your roof gets too hot, the absorbed heat moves down back into your living area, causing wet, damp temperatures that make sleeping at night difficult. Furthermore, if your roof is too moist, the moist air gets absorbed in the insulation, rendering it ineffective. Your home will be more comfortable because roof ventilation will help control the ambient temperature levels inside your home.
Disadvantages of Roof Ventilation
Roof Leak Risk
Many roof ventilation systems are not built to keep water out during storms. They are only built to keep out “regular” rain, which indicates that the force of the wind may carry water up to your roof in the event of a hurricane. If your roofing ventilation is not properly installed, the likelihood of roof leaks grows.
Carbon Monoxide Risk
If you have propane or natural gas-burning equipment in your homes, such as a water heater or furnace, electric roof ventilation may cause carbon monoxide poisoning. Electric roof fans can generate negative air pressure within your home’s interior. Nevertheless, this does not apply to the turbine or solar-powered roof fans.
Sometimes not Energy Efficient
Improperly sealed attics allow fans to draw conditioned air from within your house into the attic, making your air conditioner work harder and become inefficient. Furthermore, even with a completely tight ceiling, electric roof ventilators consume more energy than they conserve.