[wwkayaker]

I have a flat roof over my garage, currently with a metal roof and a wooden deck on top of it. There is some water leaking into the garage. I have done some research and am leaning towards duradek roofing. Duradek requires a 2% slope but my roof is flat. The other issue I have is that the patio door leading to the over-garage deck is pretty much level with the roof.

The roof is approximately 14 feet from the patio door to the roof edge. So I need about 4 inches of slope from what I understand. What I want to do is raise the patio door 4 inches and then slope the roof accordingly, this would allow the duradek installers to install the product into the door opening to create a seal. Short of stripping the garage roof down and putting in new trusses with the slope, is there a simpler way to do this?

I don’t have pics to help explain.

 

[Nealtw]

I have a flat roof over my garage, currently with a metal roof and a wooden deck on top of it. There is some water leaking into the garage. I have done some research and am leaning towards duradek roofing. Duradek requires a 2% slope but my roof is flat. The other issue I have is that the patio door leading to the over-garage deck is pretty much level with the roof.

The roof is approximately 14 feet from the patio door to the roof edge. So I need about 4 inches of slope from what I understand. What I want to do is raise the patio door 4 inches and then slope the roof accordingly, this would allow the duradek installers to install the product into the door opening to create a seal. Short of stripping the garage roof down and putting in new trusses with the slope, is there a simpler way to do this?

I don’t have pics to help explain.

How much room above the door do you have to raise the header?

Lowering a garage wall to slope a roof is also possible.

 

[wwkayaker]

There is about 18 inches from the top of the door to the ceiling. I had a carpenter look at the door and he said raising it is not an issue. I didn’t ask him about the roof as it wasn’t an issue then.

 

[Nealtw]

There is about 18 inches from the top of the door to the ceiling. I had a carpenter look at the door and he said raising it is not an issue. I didn’t ask him about the roof as it wasn’t an issue then.

I would raise the door a full 6" and cheat the slope down to 3 1/2" over the 14 ft and that can be done with just cutting long tapers to go on top of the joists

 

[wwkayaker]

Perfect. I was thinking tapered boards would work but I thought I was being too simplistic and cheating.

 

[Nealtw]

Perfect. I was thinking tapered boards would work but I thought I was being too simplistic and cheating.

You decking will have to run up the wall under the siding too.

 

[Old Thomas]

Neal has it right. Better for the door to be higher so snow doesn’t melt and leak under it.

 

[Old Thomas]

Neal has it right. Better for the door to be higher so snow doesn’t melt and leak under it.

 

[Nealtw]

Neal has it right. Better for the door to be higher so snow doesn’t melt and leak under it.

It's code here and with that solid surface deck you really do want it.

 

[wwkayaker]

I haven’t gotten around to this project and have a question about the patio door header. The only carpenter in town doesn’t have time to do the door so it’s diy.

Since I’m raising the door 6 inches, I need to raise the header. I’m confident there is room to do this. Given that the door is in an exterior wall, how difficult is it to raise the header. From reading a few sites, the info is a bit confusing. Some people say that I need to build a supporting wall while others say just cut the cripple studs, raise the header and install new jack studs. (Hopefully that terminology is correct). What is the best way to do this task?

I’m confident that there is room to raise the header because a no longer available carpenter had looked at the door and said there would be room. He also mentioned doing this work from the exterior rather than drywall side which I assume was just his preference.

This may matter...it’s a gable roof with the patio door being on the end(side) wall.