- February 13, 2021
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- Category: Uncategorized
Fold down and trim the house wrap at the top and seal all the seams with house wrap tape. (Usually, that means carefully installed drywall -- installed according to the Airtight Drywall Approach -- along with airtight electrical boxes.). Trying to strip back as much as we can, and do it right this time. The wall construction from outside in is stucco on metal lath, 2 layers of felt, 5/8” fiberboard sheathing, 2x6 wall studs. With integrated structural, water and air management layers, ZIP System ® products offer interchangeable options for optimal roof and wall performance. climate zone 2 Houston Tx, See Pix detail, inside pix, outside planter. In hindsight, maybe leaving it more open and screening would be better for drainage and airflow? TYVEK HomeWrap helps reduce drafts and helps keep energy costs down, with warm air staying inside during cold weather, and cool air staying inside during hot weather. I’m thinking this will 1) provide a substitute for the worn out water resistive barrier while giving the stucco an air gap, 2) address air leaks if properly sealed, and 3) provide sufficient r-value in the walls. There is about a 1/4" gap between the wall carrier (frame and toilet tank)and the shiplap. The downstairs will remain pure storage without any renovation other than sistering the (upstairs) floor joists and rebuilt stairs. Much of the house's siding is damaged and needs replaced. Can I install a GreenGuard siding underlayment to the stucco and then spray foam? . The GC decided to use BASF AWB 900 to seal the edges to the studs instead of spray foam. You need a plan to address that problem. The GC plans to block lower wall floor openings with pressure treated lumber (per the photo) and then cut weep holes in the bottom of each stud bay. I hired Joe L to help designI hired Joe L to help design wall system for my previous home in Charlotte (1998). In Minnesota, you absolutely need an air space between the stucco and the sheathing -- no exceptions. ", Q. Does that seem like a good approach? A. Finally, air flow between the studs might result in enough wind-washing of the insulation to reduce the thermal performance of any fluffy insulation installed between the studs (if fluffy insulation is used). As with all insulation methods, you need to pay attention to airtightness, and you need to screen openings to exclude critters. 1. I worry about the mess he might have in the future. It's a dutch colonial style roof. Its not very feasible to remove the original brick and old sheathing to install new sheathing and siding. Then the aluminum siding on top of the original siding." Then the exterior cladding goes on top of the house wrap. It's easier to get the window flashing details right if you replace your existing windows with new windows. Thanks for such a great article, it has been extremely helpful. Leave the top flap alone for now, but seal the overlap at the bottom corners with house wrap tape. . The only way to analyze and fix that type of moisture issue is with a on-site inspection. Marc, 3) When we do address the siding in the future, if we decide to remove the wood siding boards and install sheathing and wrap (or foam board), should we remove the asphalt wrap as we expose it from the outside? This explains why the house does not retain heat. Assessing all the risks at your house is a matter of judgment, but you should start by assessing the factors I list. Uninsulated stud bays are common in older homes, so workers who pull down the lath and plaster expect to see the back side of sheathing boards on the exterior side of the studs. Good luck. All that is necessary is for the materials on the exterior side of the polyiso to be able to dry outward, and the layers on the interior side of the polyiso to be able to dry inward. Martin: against my better judgement during this pandemic, I did the crazy. When rigid foam insulating sheathing is installed on the exterior walls of a home, the foam can serve as a drainage plane, taking the place of house wrap for time and cost savings.
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