Ventilation systems come in an array of designs. Nonetheless, the roof ventilation system is one of the most common in both residential and commercial buildings. It’s also quite popular in manufacturing and processing plants.
The design ensures air circulation is optimised. Hot air rises and is then expelled from the room while cool air is introduced and recirculated. Active roof ventilation relies on fans and powered vents. Passive systems, on the other hand, use natural airflow to ventilate the space.
Although roof ventilation systems effectively circulate the air in a room, the effect is far-reaching in the maintenance of your house. Here are some reasons why a roof ventilation system is essential for your home.
Extending the lifespan of your roof
On average, roofing materials last for 30 to 50 years. However, several factors could make your roof give in before exhausting its useful life span. At the top of the list is temperature. Poor ventilation traps air in the attic, affecting the temperature inside and, consequently, the roof above it.
During summer, heat build-up can burn your roof. As a result, the decking adhesives wear out, and the roof’s shingles curl.
On the other hand, winter temperatures cause condensation on the roof’s inner surface due to the large temperature gradient across the materials. The trapped condensation leads to swelling of the decking material and a wavy disfiguration. All these effects significantly decrease the lifespan of your roof.
Warranty protection
Roofs often come with two warranties: the manufacturer’s warranty and the contractor’s. The former covers your roofing materials over their lifespan. However, if your attic has poor ventilation, then it may result in a void of the warranty. Therefore, you will be fully liable to fix all damages.
Good roof ventilation protects your roofing materials and ensures your warranty contract remains intact.
Prevention of wet rot
High moisture levels cause the natural decay of timber. Unique fungi attracted to damp areas are responsible for the damage. Although the damage is only limited to moist areas, it can cause significant structural weakness and make the occupation of your house dangerous. Roof ventilation keeps your roof dry as the temperature gradient across the roofing material is kept to a minimum, leaving no room for condensation.
Prevention of moulding
Mould is dangerous and difficult to handle. Although the fungi don’t damage wood, it causes discoloration and releases allergenic spores. The fungi also cause other health problems that degrade the living conditions of a home. Fortunately, the fungi only thrive in damp areas like roofs with trapped condensation. Therefore, roof ventilation is usually enough to prevent the problem.
Reducing energy costs
Operating the air condition unit can be pretty expensive. This is particularly true during summer when the temperature hits all-time highs. Nonetheless, a good roof ventilation system draws cool air into a living space and optimises indoor temperatures. As a result, cooling costs are reduced. A passive roof vent saves the most power since it only enhances natural airflow without using any powered system.
Prevent ice damming
Ice dams often form on sloped roofs due to poor insulation and poor roof ventilation. The dams are an accumulation of ice on the edges of sloped roofs. The temperature difference between the roof and the air results in ice formation on the cold portions of the roofline. Ice damming damages the roof and other fixtures like soffits. As a result, leaks develop, and the roof structure weakens. Good ventilation optimises the temperature on the roof and prevents the formation of ice.
You can only enjoy the benefits of roof ventilation if the system is installed correctly. Therefore, it’s essential to get the right people to carry out the installation process. Nonetheless, any faults in the system present evident signs. Here is what to look out for:
· Significant changes in your heating bills
· Increased repairs to the air conditioning system as a result of system overload
· Build-up of ice on the roof edges
· Rusting of metallic roofing materials
· Water stains and dampness in the attic
· Warping of the roofline
· Surge of allergic reactions among occupants in the house
If you suspect faults in your roof ventilation system, call an expert to assess and repair the system. Don’t wait for roof damage to ensue and health problems to develop.
On the other hand, if your roof ventilation is working well, remember to schedule routine maintenance work. This is particularly important for active roof ventilation systems that have many moving parts and delicate components.
Roof ventilation is a good investment for both residential and commercial properties. The benefits are innumerable, and the system enhances the living conditions of a home. Therefore, get your roof ventilation fitted today and start enjoying all the pros that come with it.
If you suspect faults in your roof ventilation system, call an expert to assess and repair the system. Don’t wait for roof damage to ensue and health problems to develop.
