Every House Needs Roof Overhangs - GreenBuildingAdvisor
2014年7月11日 · The length of your roof overhang will be determined by many factors, including the following: 1. Aesthetics. It has to look good. 2. The extent to which splashback is a problem. This depends on the type of material which the water hits after dripping off the eaves, and the height above grade of the lowest wooden components of the building. 3.
Overframing a Roof for Large Overhangs - GreenBuildingAdvisor
2021年10月18日 · Adds a lot of complication for next to no benefit. About the only spot it works is for an unvented roof where you want zero overhangs." Understood. And you can find folks who say that not having to seal the penetrations made my rafters for an overhang makes figuring out how to "add" overhangs to the system is a more straightforward choice.
Ideal roof overhang length? - GreenBuildingAdvisor
2012年11月30日 · If the roof will be framed with trusses, a hip roof with a single ridge isn't really any more difficult to put together than a simple gable roof and you get the advantage of having the same overhang all the way around. The roof on the house I'm building is a "Dutch gable" - essentially a hip roof with gables that peek out at each end of the ...
Roof Overhangs and Moisture Problems - GreenBuildingAdvisor
2022年4月28日 · The chart below shows the percentage of the 72 walls that had moisture problems relative to the depth of the roof overhang above the wall. Percent of walls with moisture problems based on depth of roof overhang [Adapted from their paper] Nearly 90% of the walls with no overhang had moisture problems. In contrast, only 25% of the walls with a 24 ...
Correct roof overhang depth for proper solar shading
2012年7月14日 · "The overhang width is its horizontal dimension (be sure to use the same units you used to describe the height and width of the window). "The overhang depth is how far it protrudes from the wall. "The height above the window is the distance from the top of the window aperture (the glass, not the entire frame assembly) to the bottom of the overhang.
Cutting Off Portion of Existing Roof Overhang
2021年5月30日 · Flat Roof/Overhang Building Advice. Replies. kbentley57 | May 30, 2021 11:35pm | #1. It looks like the ...
Looking for porch solution w/no outer supports/posts
2021年1月27日 · One of my rear balconies has a 6' roof overhang without any supports. I didn't want a lot of structure, so the overhang is supported by two cantilever beams inside the exterior walls. The rafters in the overhang sit on these two beams. These need to go back a fair bit (I think it was around 10' inside the wall).
Insulating roof framing in overhangs - GreenBuildingAdvisor
2019年11月19日 · With help from members here, I have built up my roof system as detailed in the attached (which doesn’t necessarily show everything in the proposed assembly). This includes 3 layers of external polyiso along with 7 1/4″ of rockwool batts between the i-joists (not shown). The roof is a shed 2:12 with 24″ overhangs.
Roof venting and soffits in fire-rated roof overhangs
2024年3月27日 · The issue is we’ll have a vented roof, R60 wool insulation, and originally wanted plenty of soffit vents to dry the underside of the roof plywood/OSB. (the one side that’ll need fire-rating is the bottom of the roof slope, so where a gutter would go.) But I can’t seem to figure out if a fire-rated soffit allows for such vents.
Water Management Without Overhangs - GreenBuildingAdvisor
2019年2月20日 · It is less than ideal without the overhang for water protection on the siding, etc but looking for advice on the best way to protect the underlying structure. Current plan is shingled roof with synthetic underlayment and OSB sheathing with traditional house wrap and hardi lap …