New to building a custom home
james_rogersiii
7 years ago
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New Construction Home - Bad Cinder Block job or ok? Need help!!
Comments (2)Can you put a description of the problem you see under each photo? And are these problems all on the exterior of the house? Also, it is possible to post more than one photo in a posting. You need to use html coding to do that. If you are having problems doing so, you can post each photo in a different posting under this thread, just don't make each photo a separate thread. This post was edited by dekeoboe on Sun, Dec 1, 13 at 23:22...See MoreBuilder Patio Error - Now What?
Comments (5)joanne, First, the Tyvek. and these comments are somewhat directed towards aidan's last post: "Tyvek is too airtight to let the walls breathe. Vapor barriers are essential, but it has to be done right. " Tyvek has a perm rating of 58. It is not a vapor barrier, not even close. A vapor barrier has a perm rating of less than 1. The micro-pore structure of Tyvek allows moisture vapor to pass through it, but not liquid moisture. Now problems with Tyvek can occur when siding like unpainted cedar or redwood siding is in direct contact with the Tyvek. Extractants in those woods can mess up the micro-pore structure of the Tyvek membrane. But these shingles are fiber-cement, so no worries there. If cedar or redwood is to be used over Tyvek the wood can be backprimed or installed over a rain screen to isolate the wood from the housewrap. "Asphalt impregnated paper...is more breatheable than tyvek, but the same effectiveness as a vapor barrier." Tar paper has a moving perm rating, generally from about 5 when it is dry to about 60 when the relative humidity is in the 95% range. So when tar paper is wet or vapor saturated is has a perm rating (60) similar to Tyvek (58). When tar paper is dry (perm rating of 5) is resists the passage of moisture vapor much more than Tyvek (perm rating of 58). As to either being an air barrier, Tyvek is a more effective air infiltration barrier, especially if the seams are taped with Tyvek tape. Tar paper, due to more seams and it's structure, allows more air to pass through than Tyvek. One thing to be careful of with tar paper or felt is that most of the ASTM testing done on felt was with 15#, or "15 pound" felt. This was the "old" felt that was made from wood pulp and that had 15 pounds of asphalt impregnated into each 100 square feet of paper. The "new" felt is usually labeled #15, or "Number 15" felt, it's made of recycled paper and cardboard, and only has half the amount of asphalt, roughly 8 pounds, per 100 square feet of material. And it's usually not stapled with any ASTM certification. If it;s worth anything, todays #30 felt has abour 15 pounds of asphalt or tar product per 100 square feet. So "#30 felt" could actually be called "15-pound felt." Oh, the humanity! So what am I, a tar paper hater? Not at all. For quite a few applications I prefer it to Tyvek. I'm just trying to clarify a few things. As to flashing, in a perfect world there would be a "peel and stick" membrane used to flash the window/door openings in addition to the Tyvek wrapping the opening. It's too difficult for me to see how your windows are flashed. Flashing can depend on the construction of the windows...are they installed with a nailing flange and then trimmed out, or did they come with the flat casing already attached? Personally Id like to see peel and stick membrane (like Protecto-Wrap) used on the window pan as well as the window jambs and header. How it is flashed depends on the construction of the window. As to the pavers versus concrete, hopefully they sloped that concrete slab away from the house. If it is sloped, you can use most any stone over it. If you want to stick with the paver look and minimize the elevation gain, there are "thin pavers" or "overlay pavers" that are bout 1" thick and they are just for this purpose...getting the paver look over a concrete slab....See Morenew dream house custom build.
Comments (2)Custom built FP and pizza oven, all tile guest bath, custom master bath with walk-in shower and sauna, mud room with indoor dog wash...See MoreYOUR INPUT - Building NEW custom home on a tiny Toronto East End Lot
Comments (40)I really like the idea of a courtyard to get more windows! OP, I'm not sure if that's ok for this type of structure, or something you'd be interested in, but it would be easy to do with the stairs (for example do switchback stairs and a hall landing, and have the courtyard opposite the stairs. Obviously it would reduce your SF but it might be worth it for the additional windows....See Morejames_rogersiii
7 years agojames_rogersiii
7 years agorockybird
7 years agoStan B
7 years ago
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