Best way to switch from asphalt shingles to cheap metal

If you got a solid deck. Say OSB.

Prospect wants metal. Cheap metal on garage or Pole Barn. AG panel. But hey "it'll last forever" :dry:

No matter what the panel, it's still a high wind area.

So.......you just screw through decking. Technically acceptable. Not sure of the wind rating (nil?) Or....add the purlins. Through the decking even.

Or.......what else ?

Vented attic reduces heat in the attic going from shingles to light colored metal cools the roof down a lot. Ask for zac or Ab screws or Google them and order from fastener company

Robert: When your saying they save that much in the summer with the additional insulation added, is that over a closed attic or vented?

edit: Last year I was bidding my first AG job and asked my supplier and the metal manufacturer for premium screws and they thought I was crazy. Now Im going to stir em up.

We are installing way more ag panels then shingle these days probably 8 to 1. It gives me an edge selling a roof that can drop your roof temps by 80 degrees and even more if I throw in 3/4 foam board, its a roof that pays you back and keeps paying after its paid you back in energy saving. I tell my customers to expect to save between 50 to 150 off their cooling cost in peak tempos which is 6 months of the year here even had some come back and tell me their homes are warmer in winter so it works both way. You sell it as an energy efficient roofing system and make the extra money insulating it with foam board in between the battens or the new rolls of insulation with the silver backing. Shingle roofers around here are giving away their roofs so I try and sell something the customer can relate to a roof that will outlast those shingles and save them money, works for me and them.

If I was to screw to osb I would offer no warranty and the screws would have to be no# 14 or larger but I doubt I would do it.I built my rep on quality

Exposed fastener roofing system have been installed in this area heavily for the last 30 years improvement in the screws have made a huge difference in longevity were changing out screws on a 25 year old R panel roof that was leaking due to fasteners were installing no# 17 goof screws zac this roof will easily go another 20 years. Metal buildings and wood structures will result in different roof conditions after 20 or so years metal building roofs tend to fail sooner due to air conditioning loss causing moisture on the bottom of the panels or steel panels on insulation or z channel causing the panel to rust. You don't see that on a wood structure, we used to have a roofer from south Florida on here they due a lot of 5 v crimp there poor mans standing seam.

Now I only install over 5/8 decking or thicker, never will I screw directly to osb board! We install 1x4s on three foot centers with drywall screws attached to the truss's using zac or ab screws to fasten our metal these are the premium grade screws one piece no metal washer big difference cheap screws will leak.

Va, AG panels are pole barn metal, that fastens down directly to the substrate with screws or nails. No clips for movement and they all leak mostly sooner than later. the metal moves and rips holes into the fasteners where they go through the metal. Unlike standing seam panels that fasten into nailing strips with slots or into clips that slide with expansion.

A lot of the big box stores over here are now selling the product and a lot of people think that the nailable panels are "standing seam" metal roofs. Great! They are also making the panels out of thinner and thinner metal, and they are failing. but hey, it is cheap!

We are working on a barn today installing some of the product. I special ordered 26 gauge panels, and we screwed down vertical battens and the installed cross battens to attach the metal to. New fascia, and special bent starter metal to close off the bottom. It looks good and will last, but it was expensive compared to "normal" pole barn metal roofing. That is just how I roll.

Metal sales from Louisville.

So far I haven't got any of my AG bids because I charge too much for the "metal" customer. I get some befuddled looks when I mention hidden fastener or vertical seam....I just trail off and say its way more $$

Well I did do the fire departments roof last month, but we had a freak 25mph steady wind come through mid job. Killed the profit.

AG Panels on houses is getting common here. I've never done it. But the day will come I'm sure. They're going to give the money to someone, might as well be me.

Is Central States your local Mfg'er? I think Menards also recommends 30-lb. over shingles.

It's all "lifetime", right? :laugh:

We did a 2x4 purlin job over T -loks last year. What slow painful process finding the rafters......never as quick and easy as it seems.

Job came out good, but the money sucked

If OSB is in good shape screw it. Cheap is what they want right?? My local manufacturer encourages throwing down 30# over shingles and shooting it to that! Sounds like quality eh

I've recently been coerced to bidding jobs for installing AG panels over living spaces. I honestly only gave in thanks to Roberts(LA) testimony on here. I'm sitting here trying to come up with a number as I lost my way to RCS.