Metal Roof Over Old Metal Roof

If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.

Metal roof over old metal roof.

Lay a metal roofing panel over the existing roof material in the bottom corner of the roof surface and fasten to the roof according to the metal panel instructions. Installing a metal roof over shingles can also result in an increased chance of trapped water vapor and moisture between the new roof and old roof resulting in new mold and rot. Homeowner has a 100 year old typical a frame house with a standing seam metal roof installed over 1 x 8 boards approx. Metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.

Metal roof over shingles condensation. But now that i said that i would tell you that if it was my house i probably would and the reason is i don t want to have all those old shingles under the roof. Or installing the new metal roofing over furring strips 1 x 3s or similar will raise the metal and provide a ventilating air pocket between layers. However before you decide on reroofing with a metal roof you have to keep in mind that there are specific conditions that make reroofing with a metal roof safe.

All of them purchasing the roof from the same manufacturer. Should you tear off the old roof and start over or simply remove the fasteners from the existing roof and install another roof over it. Metal over metal retrofit considerations 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. After all you ll be making a significant and long term investment.

Both metal and shingle roofs are great options for your next roofing project. Well that s why the metal roof is such like an eco friendly product because you don t have to get rid of all of that stuff to the landfills. So far every contractor i have talked to has a different way they say it needs to be done. If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot.

By removing the old roof before the new roof s installation you are able to give the underlayment a thorough inspection to ensure there are no damages that could cause leaks or other issues with your new roof. Things to know about metal over shingle roof problems. Due to the age pin hole leaks etc i want to have a new metal roof put on. Metal roofing materials are available in several styles that require different fastening applications but are most commonly screwed to the roof framing or sheathing material.

If it s slightly windy keep the steel downwind from you so a gust of wind doesn t knock you over. I have a house that is over 100 years old. There is no evidence of underlayment between the roof and boards condensation is an issue. It has the original metal roof on it.