treated wood and galvanized roof

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treated wood and galvanized roof

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I am putting metal roofing over asphalt shingles. Should I put the metal roof directly on the asphalt shingles or can I put #2 pine boards between the two? Thanks
Guest User
2011-09-18 18:38:34.000000
I am looking at hiring a contractor to install a metal roof over an older asphalt roof. The guy I have been talking to tells me that there is “NO” special training required to install a metal roof and the warranty will not be effected. Is this true? I posed back to him that means I can walk down the street and hire the 7th person I see that is wearing blue socks and have a stranger install my $18,000 roof and the manufactures warranty will still be valid for the next 50 years. What training is required to install a metal roof to keep the manufactures warranty valid?
Guest User
2012-01-10 14:48:35.000000
I am tearing off my old metal roof and the one by sixes we bought three quarter inch treated board plywood can I put ice and water Shield over that plywood or felt screwing the middle deck right to the plywood thank you very much
Guest User
2016-05-04 17:17:50.000000
Heard treated wood messes up metal roofing, so what type of 1x4 do I need to get?
Guest User
2017-03-07 16:06:14.000000
Todd wouldn't an untreated board rott quick with the weather?
Guest User
2017-03-07 20:44:34.000000
if I have a metal roof and I want to install another metal roof on top of the original metal roof. We were going to use like a 1x4 to attach to original roof. can I use untreated timber to attach the new metal roof
Guest User
2017-05-24 20:17:54.000000
I live in a 1980s trailer with a leaky, old, flat, metal roof, painted with an aluminum coating, that has been patched up multiple times with various things. Being up on the roof for some repairs, lots of spots seemed to flex and pop as if they weren't fastened. Due to a large project with a lack of funds, I was given simple galvanized, uncoated steel sheets to install over the old roof with plans to simply screw down 2x4s horizontally and fasten the new sheets to those. What needs to be done to ensure the new roof does not also leak, or create moisture/condensation issues between the two roofs?
Guest User
2017-12-15 00:42:51.000000
I had only anticipated to overlap the ridges on the sheet metal and screw them down on the overlap. The slope I measured out as 3:12. The sheets are 86"x38".
Guest User
2017-12-15 09:21:05.000000
Would roofing felt/tar paper be a suitable barrier between treated lumber and metal roofing?
Guest User
2018-01-09 12:03:30.000000
The chemicals in treated lumber can be corrosive and damaging. If you have any way of sealing them beyond just the stain, that would be good.
Todd Miller
2011-07-22 15:35:10.000000
If it is natural lumber without chemical treatment it should be okay.
Todd Miller
2011-07-22 15:52:56.000000
First of all, I always suggest underlayment over the old shingles regardless. From there, some products can be installed on battens or direct to deck. Some must be installed on battens. And yet some other products must be installed on solid decking. The best choice is to determine the product you want to use and then ensure it is installed according to specifications.
Todd Miller
2011-09-18 18:51:03.000000
Nikos, it sounds like you're thinking of installing over battens. Please realize that not all metal roofs can be installed over battens and only a very few MUST go over battens. You are correct on the treated lumber thing. if you go with battens you will need to go with raw untreated lumber or painted lumber.
Todd Miller
2017-03-07 16:37:56.000000
If the roof is properly installed, they will not be exposed to the weather. Many metal roofs can install direct to deck with no battens. Here is a short video on this subject that may interest you. https://www.youtube.com/watch?v=pEWcwNg29Ag&index=31&list=PLMw9xVe_yEaVt4yv1i4LoDTlNKNd6boRd
Todd Miller
2017-03-07 20:55:25.000000
I would install an appropriate, manufacturer-approved underlayment before the metal is installed, whether or not you use battens. Most manufacturers have approved the synthetic underlayments that are widely available now. If you use battens to try to help level things out, make sure that the metal roof panels you are installing are approved for use over battens. Battens need to be untreated lumber -- not treated lumber.
Todd Miller
2017-05-08 11:16:24.000000
You should be able to do that. Make sure that the new roof is approved for installation over battens like that.
Todd Miller
2017-05-29 22:11:24.000000
Do you have a plan for creating seams between the sheets of metal? What pitch is the roof? What size are the metal sheets?
Todd Miller
2017-12-15 04:27:21.000000
I really have no idea whether this will work. However, if you wish to try it, here's my advice: Maintain as much slope as possible. Space the wood battens no more than 12" apart. Use cap head screws with rubber grommets for fastening. Use a flat seam lock filled with sealant to lock the panels one to the next. Wind uplift, rain, foot traffic, and thermal movement are your enemies in this project.
Todd Miller
2017-12-15 09:26:25.000000
I've just put a plain, galvanized (shiny, no paint or color) metal roof on my home addition. As my house is two stories, the wall above the roof will need the siding replaced as I tore it off for construction. I was thinking of using treated pine and staining it for the siding. My question is will any water that runs off this siding and onto my roof cause the roof to rust or discolor?
jim smith
2011-07-22 15:23:21.000000
Same thing with cedar lap siding?
jim smith
2011-07-22 15:37:29.000000
Thank you
jim smith
2011-07-22 16:00:07.000000
Am I correct in assuming that you should NOT use treated wood for furring strips underneath a metal roof ? I am installing standing seam over an old shingled roof which is not flat in some areas due to warping of the old ( sawmill ) rough lumber used in the original construction . The roof is structurally sound otherwise . Should I also use a plastic barrier before installing the furring ? Thanks , Jerry
JERRY KIRK
2017-05-08 10:56:32.000000
I have seen plenty of flashing metals pulled off PT lumber and the amount of deterioration is significant. Be careful and use compatible components.
Eric Novotny
2011-07-22 16:19:40.000000
+1 Underlayment, slip layer, is a must and is cheap insurance for a metal roof.
Eric Novotny
2011-09-19 09:17:15.000000
I would be very interested to see some of his/her sample work with that sort of proclamation Stacy. Metal might not require "special" training if you have learned OJT (on the job) but it is an entirely different set of skills than laying asphalt.
Eric Novotny
2012-01-12 08:04:01.000000
It was worked for years and years.
Eric Novotny
2018-01-09 12:26:32.000000