Metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.
Onduran over metal roof.
If it s slightly windy keep the steel downwind from you so a gust of wind doesn t knock you over.
In a residential application however condensation is a concern.
This condensation can collect and drip onto interior drywall or home furnishings.
This reduces the need to go up and down the ladder for tools pieces of insulation and making measurements.
7 things to know before choosing a metal roof if your current roof is the root of your headache and maybe even a long list of costly home repairs consider these metal roofing pros and cons.
You also need to add.
Available systems include a patented frame less metal over metal recover option that provides a low cost retrofit solution over existing exposed fastened panels with ribs up to 1 5 tall.
Moisture can collect on the inside of your metal roof whenever warm moist air inside your building meets the cold metal of your roof.
When installing a metal roof over an existing roof insulate the spaces between the wood strips with rigid insulation to prevent condensation before installing the roofing.
Cut panels on roof.
An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.
Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available.
There are a number of issues a roofer will have to deal with when it comes to metal over metal retrofits but listed below are a few where the use of a roof hugger system may help resolve.
A typical metal roof overhang may be 2 to 4 inches or even less.
Leave gaps between panels.
238t recover systems provide a long term solution to existing exposed.
Metal roof over shingles condensation.
Does the existing roof need an insulation upgrade.
Mcelroy metal has develop several methods to recover an existing metal roof using the symmetrical 238t standing seam roof system.
Home the metal roofing learning center metal roofing problems.
Make all cuts to the foam panels on the roof for more accurate cuts and quicker placement.
Also don t go up on the roof if it s windy.
Most metal roofing is installed with little or no overhang either on eaves or gable edges because it tends to bend under heavy weights.