Hi,
Attached is a photo of the house I’m remodelling. In the photo, you can see the original roof in this section has very little overhang, particularly on the side. With the concrete sidewalk around it, the raindrops bouce up and hit the house about knee high, including the back door.
The wall height is 8 feet.
I was looking for ideas on how to either extend the roof overhang or build an awning beneath the original roof.
They type of awning I was thinking about would involve nailing a 2×6 to the wall, just beneath the roof rafters. On the rear, it would extend from the left edge of the house to the first vertical trim on the siding, and on the side, the full length. I would then install posts, (a minimum of 3, but would probably need more) about 4 feet out from the house with a cross member such that I could install rafters attached on the 2×6 on the wall and notched to set on the cross member supported by the posts. Then put a tin roof on top of that.
The advantage of this method is it would give a nice wide overhang and shed water well away from the foundation of the house (which as you can see only sits about an inch above grade on the slab). The disadvantage is it might look funny and you have posts which could be backed into with a car or something like that.
The other option would be to try to extend the roof overhang. I could sister rafters onto the originals, then deck and roof over the addition (the roof over this section of the house will be replaced anyway). The downside there is that it’s a flat roof and due to the way it’s framed, the sister joists could not have more than maybe 3 feet of overlap at the maximum, and in some areas less than that. The other drawback is that I could only go maybe 2 feet out from the house, which will help with the water runoff, but not as much as an awning.
I guess a thid option would be a hybrid of the first two options, use sistered rafters, but extend them out and support the ends on posts / cross members.
I could use some triangle braces mounted on the wall at on top of those trim boards to offer some more support for a longer overhang, but the span is such that I think I would need braces in the middle of the wall as well.
Another benefit to pushing the roof out 4 feet is for guttering. The entire left side of the house is a cement walkway and there is no good option for the downspouts of the gutters to get the water across the sidewalk.
Ideas?
Thanks,
Jon