You can use a variety of products to prevent condensation in a metal roof over a structure where climate control systems weren't installed, such as in detached garages. This article discusses some of the pros and cons of using rubber-backed felt materials to control condensation in that garage.
It muffles sound. The rubber-backed felt material is attached on the underside of the metal roof. That felt material helps to absorb most of the sound that is generated within the garage. Consequently, you will be able to work inside the garage without worrying that the noise generated will cause serious inconveniences to other people in your home.
The material is antimicrobial. The felt material that you use to prevent condensation has antimicrobial properties. This attribute can help to prolong the service life of that metal roof because it will be less likely to be damaged by the growth of microorganisms, such as algae.
It is easy to clean. Most condensation-control materials gradually accumulate dust and other forms of dirt. The rubber-backed felt membrane is easy to clean when you notice that it has become dirty. All that you need is to hose it down using a pressure washer and it will become spotlessly clean.
It protects the roof from corrosion. Some condensation-control membranes can allow moisture to penetrate to the underside of the metal roof. Such moisture can cause the underside of that metal roof to start corroding quickly. The rubber-backed felt membrane shields the metal from such corrosion. This is because the rubber backer on the membrane prevents moisture from reaching the metal on which the membrane was attached.
The membrane can't be retrofitted on the metal roof. People who would like to use this condensation-control mechanism must ask the manufacturer of their roofing systems to put the membrane on the roof material during the manufacturing process. People with existing roofs are therefore unable to attach this membrane retrospectively on the roof.
The upfront cost may be high. The upfront cost of having this membrane added to the metal roof can deter some people from asking for this method. However, the long-term savings, such as lower labour costs during the installation of the metal roof, can make the membrane a wise choice.
Weigh the benefits and drawbacks of the rubber-backed membrane discussed above before you make a final decision about its suitability for your project. You may also consult metal roofing contractors for additional advice in case you have other queries that you would want to be addressed before you select a condensation-prevention system.