Basement Waterproofing and Crawl Space Repair in Sterling, VA

October 30, 2021 | Sterling, VA

Right front corner of basement has vertical crack. Water/sediment was entering previously but customer has remediated most of the issues with landscaping and water management. To seal crack and prevent any additional issues install Carbon Fiber repair kit from floor to ceiling. Run repair kit down into concrete floor next to wall and cover with concrete when finished. Sunroom crawlspace is sealed with no ventilation. To bring this up to code and provide some comfort and efficiency install 10 mil liner on floor of space, pin and seal to walls. Apply 2 inches of closed cell foam to exterior rim joist to air seal. Install vent in supply to partially condition space.

June 15, 2021 | Sterling, VA

Existing liner is loose on floor and not sealed around columns or attached to CMU walls. Some water in space due to existing plumbing/sewer line leak which is being addressed. Noted some dampness on walls and near where the plumbing leak was noted. Do not see groundwater issues at this time. Remove existing liner and any debris in space. Install 10 mil liner on floor, wrap columns and install up all walls to below sill plate. Seal all seams. Second vapor barrier on underside of framing must be removed as it will create issues with vapor barrier already a part of the insulation. Remove and dispose. Crawlspace already has a passive transfer grille to the living space. Dehumidifying the space is recommended but not a requirement at this time as the passive grille complies with the updated building codes. Two intermediate support columns have no footing installed, one is rotten at the base. Support area around existing columns, install new footers to current building code. Install new pressure treated support columns and secure to support framing. Will require temporary support of area around column during work.