In a residential application however condensation is a concern.
Metal on top of roof.
Secure the metal panel to the deck by drilling 1 1 2 inch galvanized metal screws through the peak of the rib in 12 inch to 16 inch intervals.
The second way to install a metal roof over a shingle roof is with the use of purlins or battens.
Today s metal roofs are a far cry from the corrugated tin barns of the bucolic past indeed now you can choose from tin zinc aluminum copper or galvanized steel.
A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.
Here are the pros and cons to installing the metal roofing over 1x4 s.
An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.
The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacture has testing for their roofing panels and then the metal is installed to the purlins.
Often the material used is not actually tin but galvanized steel or aluminum.
Preventing condensation in a barn shop or other outbuilding you can attach your metal roof directly to the purlins.
Although it is durable it will produce a little noise if rain or wind occur.
Combining different metals on a metal roof system can actually lead to interactions that could result in early degradation staining and potential failure of a system altogether.
The installation of metal roofing is often easier and faster than other roof types and because of its simple design and generally large size can actually be installed directly on top of existing roofing materials like asphalt shingles and foam roofing.
Moisture can collect on the inside of your metal roof whenever warm moist air inside your building meets the cold metal of your roof.
It provides a solid flat surface to attach the new metal roof to.
Metal roofs are stylish.
Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof that can t be done the other two ways.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
Metal roofing is a commonly used material for several reasons ranging from low cost to durability.
It is a waterproofing layer made of regular felt stacked above the solid.
For example galvalume roofing performs best when not in contact with specific materials such as copper bricks treated lumber iron and concrete.
This method has its benefits as well.
Let s take a look at the most common types of metal roofs for houses.