Roofing

[PWilks]

I live in central Minnesota.

I just go to the roofing stage of my 24x32x12 garage/shop, and had a question Regarding drip edge vs gutter apron.

I’ll be adding gutters along the eaves, and wondering what is appropriate In this situation. Does ice and water shield go over or under the drip edge/apron? If I run gutter apron on the eaves, should I run drip edge up the rakes? And what’s on top?

I can’t seem to find any diagrams of a roofing assembly like this specific to my situation.

I need ice shield, and id like to have gutters. But drip edge or gutter apron?

 

[yeldogt]

The ice shield goes on the roof deck -- on the sheathing.

On generic buildings I typically do a strip of 1x2 on the facial first all the way around the building as a bit of a kick -- this way the drip edge sits proud of the facia and the water drips off the building. It helps the gutters as well as the water coming off drips into the gutter and not past/ around .. and down the facia.

Drip edge and then whatever the roof manufacture wants as a base sheet .. use the proper starter.

 

[Chris705]

It is probably debatable weather the ice membrane goes on top of or under the drip edge. If under I Have seen it detailed as lapping down over the edge of the plywood and slightly onto the fascia board, just enough so the drip edge covers it. On top of the drip seems smart to me. Then I have never heard of a gutter apron, we always use drip edge at the eaves and rake edge flashing up the edges around here. Make sure the drip edge stays off the fascia board by about 1/4” if pushed tight to the fascia then capillary action can take the water down between the gutters and fascia, not what you want. Also be sure to set the high end of your gutter just slightly below the roof plane so the snow/ice slides won’t rip them down when they let loose. Good luck with the rest of your project!

 

[nadogail]

IMHO, a roofer in your area can supply you with local knowledge.

 

[Notgrownup]

On the eave(Bottom) the drip edge goes under the tar paper / ice shield but on the gable side it goes over the tar paper or ice shield is what I was always told...

 

[matt_i]

Right or wrong, I adhered the ice + water to the drip edge. I didn't want moisture from any part of the roof (the underlayment laps on top of the ice + water higher up) getting underneath the shingles to run down behind the drip edge and get the fascia board wet.

I used drip edge on all edges of the roof, even the inclined ones on the gable ends. Aluminum trim slips up underneath it in all cases.

 

[Firebrick43]

The ice/water shield goes down over the edge of the roof onto the facia and the drip edge on top according to the manufactures. Ice dams can happen in the gutter. If you want extra protection you can place either a layer of synthetic felt over everything or a 6” wide rolls of ice water and that can go over the top of the drip edge and as heated to the previous layer of ice and water

 

[see pictures]

On the eave(Bottom) the drip edge goes under the tar paper / ice shield but on the gable side it goes over the tar paper or ice shield is what I was always told...

This, do whatever your shingle manufacturer says for warranty purposes.

 

[PWilks]

To my understanding, gutter apron is just a little wider version of a drip edge, without the sort of T shape.

If a drip edge works with gutters, that’s what I’ll do. I assume since it’s not sitting flush to the fascia flashing, the back lip of the gutter can slide behind it?

 

[Daedalus]

I recall the shingle manufacturer for my shingles had very specific instructions regarding this and everything else related to the installation. I used GAF shingles.

 

[yeldogt]

IMHO, a roofer in your area can supply you with local knowledge.

IMO .. they are the least likely to do it correctly