We couldn't justify standing seam so went with 5v crimp. I know lots of people say not to do that because of the screws, but 75% of the roofs where I am in FL are 5v crimp without problems.

Are you in the part(s) of Texas where hail storms are common? Blue northers? Metal roofs may dent, but they last. Hail can easily destroy 20 and 30-year warranted asphalt shingles.

CPA is right: 5v crimp is less expensive than standing seam.

Keep looking at roofing contractors and metal options.

CPA - I need to look at our windstorm requirements. Just from a quick read, the 5V crimp aren't as good in the wind. We have to be built to withstand 140mph I think... I will call my windstorm engineer tomorrow.

CPA - I need to look at our windstorm requirements. Just from a quick read, the 5V crimp aren't as good in the wind. We have to be built to withstand 140mph I think... I will call my windstorm engineer tomorrow.

Well if they're not, then everyone in my area of SW Florida is in deep doo doo since we have to build to the same or higher. We're on the gulf.

What part of Texas is your part...?

CPA - true. still need to cover my bases... Our Windstorm is State mandated - and they like to do everything BIGGER in Texas (insert HUGE eyeroll). No end to the bureocracy...much of which makes no sense. We are 40 miles from the coast, about a half a mile from not having to deal with the windstorm crap, lol.

Virgil- I am just south of Houston. 40 ish miles from the coast.

I was getting ready to post a very similar question except for a build in Tennessee. I'll be following your post in hopes someone shares where that magical comparison site/tool is to be found. :)

You might look at a concealed fastener system like the SL-16 from ABC roofing.

http://www.abcmetalroofing.com/Residential/SL-16-/

I believe a similar product is available from other manufacturers.

Interested in metal roof, but my roof has very low slope. Explored the link PPF provided. Looks like most options do not work for low slope. Any recommendations for low slope metal roof? Thanks

What slope is your "low slope"?

"Looks like most options do not work for low slope."

Huh? Low slope is why many projects go with a metal roof..............

Maybe i should have said almost flat. I was looking at the linked website. Most of the residential options provided has minimum slope as 3:12. My roof is 1.5:12. Thanks

What roofing material is currently used for your roof? 1.5:12 is a pitch for tar and gravel or membrane roofing. A well designed and installed metal roof might work...but it's marginal.

Mark - Asphalt shingles are the norm around here. that is pretty much all the contractors I have talked to know. They do a few standing seam metal roofs - but that is infrequent as they are costly.

How many squares does your roof measure? Try pricing out a snap lock metal roof system. They are a bit cheaper and just as good. I would highly recommend using a 24 steel gauge metal.

The cost should be around double what an asphalt would cost. Once and done for life. God knows what in an asphalt roof will cost in 25 years when you will be replacing it. Metal looks much better. And I got a large insurance discount because I have one. It is money well spent.

taconichills - I called insurance yesterday (2 in fact) and got 2 quotes for our hypothetical house...The metal roof quote was $600/year MORE! I keep hearing about a discount, but I haven't been able to fin it.

My metal roof panels are ok down to 1:12.

https://www.kingspan.com/us/en-us/product-groups/insulated-panel-systems/roof-panel-systems/kingzip

However, it is in no way a low cost solution. It is, though, thick, tough and strong.

Factor in the cost savings of a metal roof that probably in 30 years you are not going to be replacing a roofing material. Metal roofs generally last a long time.

"...Asphalt shingles are the norm around here..."

Generally, the minimum recommended slope for asphalt shingles with a full underlayment is about 3:12. And not many asphalt shingle roofs may be rated to 140 mph winds which the OP mentioned.

Cyndy, sorry about hijacking your thread.

Virgil, we had a tar and gravel roof, at least six layers. We were told we could do standing seam, but it would be costly. Torch down is what was recommended. When I saw this thread, I thought maybe we could do a metal roof

It looks like PBR or 5v crimp is more reasonable in cost compared to standing seam. I understand it may not be as good as standing seam, but how does it compare to other roofing materials such as torch down? Thanks

"...Virgil, we had a tar and gravel roof, at least six layers..."

If cost is a major issue, it might be a lot cheaper to remove the existing T&G roof layers and replace with a new T&G or membrane assembly. Have you considered this?

Or are you simply thinking about not having to remove the existing roofing and to add something new on top of the existing?

With six layers of T&G, you probably can't do more by code (in fact, 6 layers may exceed code), but removal and replacement is a very common technique.

Virgil, we are doing an addition, so we would like to get all of the roof to match. Going to replace the existing roof. Architect suggested shingles, but shingles do not work on low slope roof so torch down is suggested.

We designed houses on an island in Florida using Miami Dade wind requirements. All the houses had 5V crimp roofs, so it can be done. I believe we covered the entire roof deck with ice and water underlayment prior to metal. I put a snap seam type roof (Fabral) on our current addition and renovation. Cost was more than 3X shingles.

We went with Asphalt. We wanted a metal roof, but the price was too much and our cell phone coverage was spotty at best at the building site. A metal roof doesn't help cell service.

Not sure about that whole metal roof reducing cell service theory. I never experienced any issues. And then of course once you move in, all you have to do is switch your cellphone to WiFi calling for perfect service.

"...A metal roof doesn't help cell service..."

It helps when you keep your windows open...

A metal roof doesn't help cell service.

Bull pucky.

"...Bull pucky..."

Yes, but it's common Bull Pucky...!

How long do you plan to stay in the house? The metal rood I want is much more expensive. We are in Hail country. I’ve toyed with the idea of doing shingle now, and replace with metal when insurance covers the shingle portion. At least then I’m not getting hit with it during the build. But we also plan to Ryan in the house for 30+ years and will likely get our shingle roof covered by insurance within 10 years of our build.

If you are in frequent strong hail country, then asphalt shingle roofs have a very limited lifetime. That said, your roof slope is so low that it's virtually impossible to install asphalt shingles in the first place--3:12 with continuous underlayment is about the minimum, and your roof is half that.

Seems to me your choices are simple: 1) Less expensive tar and gravel or membrane, or; 2) Low slope metal roofing.

Good luck.