Sealing Basement Walls

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Sealing Basement Walls

Sparkle 11 months ago Subject: Wet basement; wet crawlspace; wet garage Entry to front door is one step up. 5 below grade vents are along the front of the house but not in front of the garage (concrete slab) that is entered from back of house. When facing the house, the left side has about 18″ of crawl space underneath and the right side of the house is higher (the part basement and part crawlspace side) with about 7 steps to enter the right side of the house and the same number of steps on that same side of the house at the back entrance. the garage side of the house gets lower again with 4 steps to the garage but once in the garage, only 2 steps to floor level. House built in 1950s. Parents placed a sump pump (the exterior steps to basement allows water to drain downward toward the pump despite the roofing over the steps) at the entry door and some type of dark grey concrete coating was placed halfway up on the block walls throughout the basement. All efforts worked only temporarily. Today, most of the water seems to be coming in on the opposite side to the pump and is downhill so does not reach the pump unless the entire floor is covered and then it only pumps what is in the vicinity of the pump. Also if enough water gets into the crawl space, water pours like a water fall through stair step cracks between the blocks under the crawl space door. This did not occur frequently but certainly when it rains very hard for a long period of time. After the devastating SC flood this past Oct., I seem to have to pump water every time it rains now. All of the solutions I've gotten for the problems make my head spin. Don't know what advice to follow but have replaced gutters which has made things worse in some ways. The downspouts are extended out 4 feet or so on only 2 at the front of the house and it just pools more water in those areas which can't be good. The supposed seamless gutters drip water on my head when I try to enter the house at the door on the steps. I believe that the below grade vents are a contributing factor as well as the cracks under the crawlspace door that opens to the basement, not to mention those gutters. Sometimes water seems to be coming up or draining from the sides of the sump pump hole and there is a mysterious pipe along the side of the wall that also drops water into the basement when it rains. I think perhaps a washer was once located there. There are faucets above as well. No one seems to know where that pipe leads but I know that water is getting to it and through it somehow. A few days ago (another estimate) I was shown rust stained area at the base of the walls, sort of looks like a baseboard and was told that groundwater was coming in there. There are things in the basement that have rusted as the amount of water in the basement with the pump working during the flood took some while to be pumped out. On the opposite side of the wall with the stain is crawlspace that seems to be dig out into a basin. Perhaps that was done to accept a heating duct that extends from the furnace that is also in the basement. The window side of the basement seems to have no problems at all though the bottom of the window is flush with the ground. I can't see doing exterior excavation when it seems as though it's the interior walls are involved and of course the crawlspace. My thoughts, being on a budget, would be getting the gutters to work properly, doing something with the below grade vents but is it safe to close them up since ventilation is needed, sealing the cracks under crawlspace door, doing something with that pipe and the doorway. I think all of the water (95%) comes from the two walls that touch crawlspace. I think I can deal with the garage if I can solve the other problems. Any advice or suggestions? replyto Sparkle

Sealing Basement Walls

Entry to front door is one step up. 5 below grade vents are along the front of the house but not in front of the garage (concrete slab) that is entered from back of house. When facing the house, the left side has about 18″ of crawl space underneath and the right side of the house is higher (the part basement and part crawlspace side) with about 7 steps to enter the right side of the house and the same number of steps on that same side of the house at the back entrance. the garage side of the house gets lower again with 4 steps to the garage but once in the garage, only 2 steps to floor level. House built in 1950s. Parents placed a sump pump (the exterior steps to basement allows water to drain downward toward the pump despite the roofing over the steps) at the entry door and some type of dark grey concrete coating was placed halfway up on the block walls throughout the basement. All efforts worked only temporarily. Today, most of the water seems to be coming in on the opposite side to the pump and is downhill so does not reach the pump unless the entire floor is covered and then it only pumps what is in the vicinity of the pump. Also if enough water gets into the crawl space, water pours like a water fall through stair step cracks between the blocks under the crawl space door. This did not occur frequently but certainly when it rains very hard for a long period of time. After the devastating SC flood this past Oct., I seem to have to pump water every time it rains now. All of the solutions I've gotten for the problems make my head spin. Don't know what advice to follow but have replaced gutters which has made things worse in some ways. The downspouts are extended out 4 feet or so on only 2 at the front of the house and it just pools more water in those areas which can't be good. The supposed seamless gutters drip water on my head when I try to enter the house at the door on the steps. I believe that the below grade vents are a contributing factor as well as the cracks under the crawlspace door that opens to the basement, not to mention those gutters. Sometimes water seems to be coming up or draining from the sides of the sump pump hole and there is a mysterious pipe along the side of the wall that also drops water into the basement when it rains. I think perhaps a washer was once located there. There are faucets above as well. No one seems to know where that pipe leads but I know that water is getting to it and through it somehow. A few days ago (another estimate) I was shown rust stained area at the base of the walls, sort of looks like a baseboard and was told that groundwater was coming in there. There are things in the basement that have rusted as the amount of water in the basement with the pump working during the flood took some while to be pumped out. On the opposite side of the wall with the stain is crawlspace that seems to be dig out into a basin. Perhaps that was done to accept a heating duct that extends from the furnace that is also in the basement. The window side of the basement seems to have no problems at all though the bottom of the window is flush with the ground. I can't see doing exterior excavation when it seems as though it's the interior walls are involved and of course the crawlspace. My thoughts, being on a budget, would be getting the gutters to work properly, doing something with the below grade vents but is it safe to close them up since ventilation is needed, sealing the cracks under crawlspace door, doing something with that pipe and the doorway. I think all of the water (95%) comes from the two walls that touch crawlspace. I think I can deal with the garage if I can solve the other problems. Any advice or suggestions?

Sealing Basement Walls

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Groundwater swells when the water table has exceeded its high point. Soil surrounding your home is unable to hold the extra water, causing a consistent runoff problem. If you have a wet basement due to groundwater swelling, your basement will be wet for a long period after each storm and there may be water bubbling up from the joints between the wall and floor. Many homes are not constructed with protection from high groundwater, and it is very expensive to install a system to combat the problem. Combating a Wet Basement No matter if your basement is finished or you use it as just a storage room, it is important for the structural integrity of your home to combat a wet basement problem as soon as you discover it. Solutions to tackling a wet basement are plenty. The first step is trying to figure out the type of problem you are encountering. Then, check the grading around your home, downspouts for any leaks or pooling, and cracks in the driveway. Fix all of the problems you encounter as well as patching cracks in the basement walls and floors, as water in the home can cause mold problems as well as a wet basement. Applying a Concrete Sealer Sealers are available for coating basement walls and floors. They offer a quick waterproofing measure and can be decorated. They are easy to apply, provided you follow the manufacturer’s guidelines. They can be applied to damp surfaces but any standing water should be removed. Fitting a Polyethylene Membrane An alternative to epoxy coatings is to use a polyethylene membrane. Although it holds back water, it may be necessary to install channels and a sump pump to collect and remove water from behind the membrane. Seek professional advice on whether this is required. Measure the surface area you need to cover and make sure you buy enough membrane for your needs.

Sealing Basement Walls

Sealing Basement Walls

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Sealing Basement Walls
Sealing Basement Walls
Sealing Basement Walls