Metal roofing has been increasingly popular in recent years for a variety of reasons. Not only is it aesthetically pleasing, but it is also more durable and long-lasting than other types of roofing. However, just because it’s a sturdy roofing material doesn’t imply it doesn’t require insulation. Insulation will aid in maximising its energy efficiency.
Metal Roof Insulation Options
Many options are available when it comes to metal roof insulation (known ฉนวนหลังคาโลหะ in Thai). Insulation serves a much broader purpose than merely preventing heat flow. Metal roofs don’t need to be noisy even during extreme weather conditions such as heavy rain, hail, and extreme wind. Noise reduction is extremely effective with insulation. You can also reduce moisture with proper insulation and vapour barriers. Various roofing issues are minimised by removing moisture.
Roofing with fibreglass batts is a popular choice. It’s reasonably priced and comes in a wide range of R-values. If you’re on a budget, fibreglass batts are a good choice because they’re the least expensive.
When dealing with batt insulation, proceed with caution. Essentially, fibreglass insulation is small shards of glass that you don’t want to breathe in. To be safe, invest in appropriate PPE or hire a professional installer.
Rigid Foam Board
Foam board has a higher R-value than batt insulation, which is why it is more expensive. It is a roofing insulation option that is installed on the outside of the house and isn’t installed on top of the metal roof. In addition to soundproofing, it is an effective insulator.
Moisture control is necessary for rigid foam board insulation. To allow for ventilation and hence moisture control, your roof will need to be vented. As well, you’ll need to install a vapour barrier, which is an easy task.
Spray Foam Insulation
The cost of spray foam insulation is higher than that of fibreglass batts. Furthermore, it has a lower R-value per inch compared to rigid foam. For projects that require total insulation, spray foam is a great option.
Open-cell foam and closed-cell foam are both types of spray foam. Open-cell spray foam is less expensive than closed-cell spray foam, although it has a lower R-value. This makes it best suited to locations with moderate weather.
In contrast, closed-cell insulation is more expensive but provides better insulation. Moisture can pass through both types of insulation, but nothing bad can happen to them. If you plan to use spray foam, make sure that the foam and roofing materials are compatible.