Metal corrugated roof! Ugh...

[maddog7]

Hi, and thanks! Yes the pitch was mentioned, but not mine. Oh trust me I will not use him again or recommend him EVER! I will mention the pitch to my brother (my handy guy) when we rip the metal off. How would I raise the metal off the plywood?

Looks like others have answered your question quite well: furring strips. You get protection and ventilation of the roof.

Be sure that there are paths and breaks so water goes where you want it to go. Can't block water or it will behave badly. You could also consider using what was or is still called 'cap sheet', tho you already have the metal. Conceptually, in many ways, the paper is really your real water barrier and anything else on that, cap sheet or metal is just to protect the paper shield.

I would talk to a roofing supplier; they want to sell materials, not the job and you may get your best info from them vs a roofer.

 

[junkman56]

Yes, I put house floor vents in my coop I built, one high and one low. That's true if I get the ones I can close to use.

These are some of my low vents

 

[Mybackyardpeepers]

Looks like others have answered your question quite well: furring strips. You get protection and ventilation of the roof.

Be sure that there are paths and breaks so water goes where you want it to go. Can't block water or it will behave badly. You could also consider using what was or is still called 'cap sheet', tho you already have the metal. Conceptually, in many ways, the paper is really your real water barrier and anything else on that, cap sheet or metal is just to protect the paper shield.

I would talk to a roofing supplier; they want to sell materials, not the job and you may get your best info from them vs a roofer.

Great idea consulting with a supplier! Thanks.

 

[Mybackyardpeepers]

These are some of my low ventsView attachment 1970010

Are they just hardware cloth when open? I was thinking of using what I did in the coop I built, the floor vents that open and close.

 

[junkman56]

Are they just hardware cloth when open? I was thinking of using what I did in the coop I built, the floor vents that open and close.

Yes I have 1/2" hardware cloth on the inside

 

[Mybackyardpeepers]

Yes I have 1/2" hardware cloth on the inside

Those are a great idea. How do you keep them open?

 

[junkman56]

Those are a great idea. How do you keep them open?

In the summer I have hook locks on them.
And for the winter I just prop a couple open with a piece of wood

 

[Mybackyardpeepers]

In the summer I have hook locks on them.
And for the winter I just prop a couple open with a piece of wood

Awesome, thanks!!!

 

[HenOnAJuneBug]

This is true for corrugated roofing, but it is not true for the type of 5V crimp roofing that the OP has and is shown in her pictures. In the 5V crimp or galvalume type roofing, the gasketed screws are placed on the flats.

Screwing through the ridges is the way it used to be done. Now they recommend screwing the flats.

 

[HenOnAJuneBug]

Don't use tar paper between the metal and plywood. It can cause corrosion problems. Talk with the guy at Home Depot, or wherever you go, and he will recommend a synthetic material that doesn't cause that problem.