Q: I had some moisture in my basement this winter--got onto the carpet foam and made a mess. I removed some drywall to see if there was a leak, but the only obvious issue is wetness on the vapor barrier directly behind the drywall and dampness in the drywall as well (see photo). Any ideas how to deal with this? The foundation and fiberglass insulation appear to be … [Read more...] about How To Diagnose Leakage In Finished Basement?
Q: I have a 1970's split level, 2000 sq ft house. I am renovating and have totally removed all the finished walls. I always had to run a dehumidifier and I now see I have some moisture issues. On two walls I had efflorescence which I painted and now the floor about a foot out from the concrete block wall is spalling and has efflorescence. I also have a block chimney on … [Read more...] about Preventing Efflorescence & Spalling in Foundation
Q: We have purchased 13 acres of land with a gorgeous mountain view in North Georgia that previously had chicken houses on it. The houses were torn down two owners ago. There were 6 total houses, 3 new and 3 very old and collapsing. We did all of the "right" things, so we thought, during the due diligence period. Perc testing, plat maps, checked on zoning, checked for … [Read more...] about Building Over Buried Agricultural Waste
Q: What are the best practices for a vented crawlspace? I bought a townhome last Nov. that has a vented crawlspace with a sump pump. There is a vapor barrier on the ground. There is a truss floor system that has faced batts that hang below the subfloor (the facing does not touch the subfloor), the rim joist was sealed with spray foam at the top and bottom and filled with … [Read more...] about Vented Vs. Unvented Crawlspaces
Q: We recently purchased a property that has an old detached garage on it. Water is leaking into the garage all around the perimeter at the bottom of the wall (first photo). The garage is slab-on-grade construction with a 12-in.-high concrete stem wall placed on top of the slab. The problem is that the slab extends 6 in. beyond the stem wall, forming a horizontal skirt around … [Read more...] about How To Stop Leak Onto Garage Floor?
Q: Hi. We are having a home built and there is a 4-ft.-high, 8 in. poured concrete wall for a crawl space foundation. When the forms were removed there was a serious crack in the wall (see pic). I'd like to better understand the cause of the cracking and any recommendations for repair before any further work progresses. Thank you , Mike A: Diagonal cracks in a foundation … [Read more...] about How Serious Is Diagonal Crack in Basement Wall?
Q: A plumber disconnected service from our old well and connected the house to city water. The well was never capped. Could that be the source of our leak under the slab on grade? -- Thomas A: Capping of an old well keeps debris and surface contaminants out of the well in case you want to use it in the future. But a cap would not affect underground leakage. Unless you have … [Read more...] about How To Find An Underground Water Leak
Q: How sturdy are helical piers as a foundation for a backyard deck? Also, can I use a ground screws or other type of no-dig post anchor to support a newel post on my porch stairs? – FC A: Helical piers, when installed properly, can provide a sturdy, code-approved foundation for a raised backyard deck. This type of support, also known as helical “piles” has been widely … [Read more...] about Helical Piers for Decks