Partial re-roofing of pole barn - any thoughts?

[Ryan Wilke]

DISCRIPTION:
The pole barn was built in 1986 and is 36' x 48' with 12' at the eves. The roof has a gentle 4-12 pitch. The roof has one layer of black asphalt shingles on tar paper on OSB particle board. Gable ends face east & west with roof faces sloping north and south. It has steel sheeting siding with vented soffiting on all sides. The ridge isn't vented rather has semi-translucent lite panels the full ridge length that pass ALOT of natural light into the space (open rafters inside - no ceiling).

ISSUE:
The south face of the shingles is in REALLY BAD shape! Although the roof isn't leaking rainwater that I know if yet, it has shingles missing, curling up, etc. However, the northern face looks like it was laid down last year!

So,,,, what I'm thinking of only replacing the south face shingles. The south face shingles are way to bad to even think about laying a new layer over the old ones, so they must come off. I'd likely try to maintain or replace the tar paper as necessary. I'm also thinking of changing to a grayish tint shingle rather than the current black color in an effort to reduce the amount of heat it would absorb and increase it's heat-reflecting quality. Yeah, the north side would be black and the south side would be gray, but so what?

I really like the current ridge "light" panels, but I'd likely change them out with some new panels, since they are cracked in a few locations now and have the expected weathering.

The building isn't heated, so I'm not too concerned about ice shielding or such.

QUESTIONS:
a) Does anyone have any thoughts or suggestions with my above plan?

b) What brand/type of shingle is recommended these days to get the "best-bang-for-his-buck"?

Thanks in Advance for any & all advice and suggestions!
RW

 

[rodrelic]

I will only use steel roofing from now on. I tried plastic panels a couple of times. They are ****, tear like paper, someone will have to make some real substantial fiberglass or plastic sheating before I will build them in agian.

 

[lasalle gearbox]

DISCRIPTION:
The pole barn was built in 1986 and is 36' x 48' with 12' at the eves. The roof has a gentle 4-12 pitch. The roof has one layer of black asphalt shingles on tar paper on OSB particle board. Gable ends face east & west with roof faces sloping north and south. It has steel sheeting siding with vented soffiting on all sides. The ridge isn't vented rather has semi-translucent lite panels the full ridge length that pass ALOT of natural light into the space (open rafters inside - no ceiling).

ISSUE:
The south face of the shingles is in REALLY BAD shape! Although the roof isn't leaking rainwater that I know if yet, it has shingles missing, curling up, etc. However, the northern face looks like it was laid down last year!

So,,,, what I'm thinking of only replacing the south face shingles. The south face shingles are way to bad to even think about laying a new layer over the old ones, so they must come off. I'd likely try to maintain or replace the tar paper as necessary. I'm also thinking of changing to a grayish tint shingle rather than the current black color in an effort to reduce the amount of heat it would absorb and increase it's heat-reflecting quality. Yeah, the north side would be black and the south side would be gray, but so what?

I really like the current ridge "light" panels, but I'd likely change them out with some new panels, since they are cracked in a few locations now and have the expected weathering.

The building isn't heated, so I'm not too concerned about ice shielding or such.

QUESTIONS:
a) Does anyone have any thoughts or suggestions with my above plan?

b) What brand/type of shingle is recommended these days to get the "best-bang-for-his-buck"?

Thanks in Advance for any & all advice and suggestions!
RW

i'd tear off the tar paper, it isn't that much money and you'd get to see the condition of the osb. probably hard to save the paper anyway as you rip off the shingles.

bang for buck has a time element too. i get thirty year shingles because i don't want to do it again, not soon anyway. i go to a contractor supply for shingles, although the big box stores are tough competition for them. don't forget drip edge and i double shingles on the edges. rent a nail gun.

know where you can get a large tarp quickly because as soon as you remove the shingles, it'll start raining and go on for many days. this is a law of roofing.

 

[Ryan Wilke]

Thanks for the replies, rodrelic & lasalle gearbox!

10-4 on using 30-yr shingles and new tar paper....
Would you agree that square tab shingles are best/easiest to put up?

Has anyone ever seen/use the polycarbonate light panels?
From what I've read, they are stronger and pass more light than fiberglas panels.....

Thanks in advance again, Fellas!

RW