Basement Drying >> How To Pump Water Out Of A Flooded Basement

Techniques for controlling the entry of termites through residential foundations are advisable in much of the United States (see Figure 2-8). The following recommendations apply where termites are a potential problem. Consult with local building officials and codes for further details. How To Pump Water Out Of A Flooded Basement Minimize soil moisture around the basement by using gutters, downspouts, and runouts to remove How To Pump Water Out Of A Flooded Basement roof water, and by installing a complete subdrainage system around the foundation. Remove all roots, stumps, and scrap wood from the site before, during, and after How To Pump Water Out Of A Flooded Basement construction, including wood stakes and formwork from the foundation area. Treat soil with termiticide, or deploy properly-maintained bait stations on all sites vulnerable to How To Pump Water Out Of A Flooded Basement termites.
 
Place a bond beam How To Pump Water Out Of A Flooded Basement or course of cap blocks on top of all concrete masonry foundation walls to ensure that no open cores How To Pump Water Out Of A Flooded Basement are left exposed. Alternatively, fill all cores on the top course with mortar, and reinforce the mortar joint beneath the top course. Place the sill plate at least 8 inches above grade; it should be How To Pump Water Out Of A Flooded Basement pressure-preservative treated to resist decay. The sill plate should be visible for inspection from the interior. How To Pump Water Out Of A Flooded Basement Since termite shields are often damaged or not installed carefully enough, they should not be regarded as sufficient defense by themselves. Be sure that exterior How To Pump Water Out Of A Flooded Basement wood siding and trim is at least 6 inches above grade.
 
 Construct How To Pump Water Out Of A Flooded Basement porches and exterior slabs so that they slope away from the foundation wall, and are at least 2 inches below How To Pump Water Out Of A Flooded Basement exterior siding. In addition, porches and exterior slabs should be separated from all wood members by a 2-inch gap visible How To Pump Water Out Of A Flooded Basement for inspection or by a continuous metal flashing soldered at all seams. Fill the joint between the slab floor and foundation wall with urethane caulk or coal tar How To Pump Water Out Of A Flooded Basement pitch to form a termite barrier. Use pressure-preservative-treated wood posts on the basement floor slab, or place posts on flashing or a concrete pedestal raised 1 How To Pump Water Out Of A Flooded Basement inch above the floor. Flash hollow steel columns at the top to stop termites.
 
 Solid steel bearing plates can also serve as a termite shield at the top of a wood How To Pump Water Out Of A Flooded Basement post or hollow steel column. Plastic foam and mineral wool insulation materials have no food value to How To Pump Water Out Of A Flooded Basement termites, but they can provide protective cover and easy tunneling. Insulation installations can be detailed for ease of inspection, although often by sacrificing thermal How To Pump Water Out Of A Flooded Basement efficiency. In principle, termite shields offer protection, but should not be relied upon as a barrier. Termite shields are How To Pump Water Out Of A Flooded Basement shown in this document as a component of exterior insulation systems.
 
 Their purpose How To Pump Water Out Of A Flooded Basement is to force any insects ascending through the wall out to the exterior, where they can be seen. For this reason, How To Pump Water Out Of A Flooded Basement termite shields must be continuous, and all seams must be sealed to prevent bypass by the insects. These concerns over insulation and the unreliability of termite shields have led to the conclusion that soil How To Pump Water Out Of A Flooded Basement treatment is the most effective technique to control termites with an insulated foundation. However, the restrictions on widely used termiticides may make How To Pump Water Out Of A Flooded Basement this option either unavailable or cause the substitution of products that are more expensive and possibly How To Pump Water Out Of A Flooded Basement less effective.
 
 This situation How To Pump Water Out Of A Flooded Basement should encourage insulation techniques that enhance visual inspection and provide effective barriers to termites. For more How To Pump Water Out Of A Flooded Basement information on termite mitigation techniques, seeNAHB (2006). Construction techniques for minimizing How To Pump Water Out Of A Flooded Basement radon infiltration into the basement are appropriate where there is a reasonable probability that radon may be present (see Figure 2-9). To determine this, contact the state health How To Pump Water Out Of A Flooded Basement department or environmental protection office. General approaches to minimizing radon include (1) evacuating soil gas How To Pump Water Out Of A Flooded Basement surrounding the basement., and (2) sealing joints, cracks, and penetrations in the foundation.
 
 Sealing the Basement Floor Use solid pipes for How To Pump Water Out Of A Flooded Basement floor discharge drains to daylight, or mechanical traps that discharge to subsurface drains. Use a 6-mil (minimum) How To Pump Water Out Of A Flooded Basement polyethylene film beneath the slab on top of the gravel drainage bed. This film serves as a radon and How To Pump Water Out Of A Flooded Basement moisture retarder and also prevents concrete from infiltrating the aggregate base under the slab as it is cast. Slit an "x” in the polyethylene membrane to receive How To Pump Water Out Of A Flooded Basement penetrations. Turn up the tabs and seal them to the penetration using caulk or tape.
 
 Care should be taken to avoid unintentionally puncturing the barrier; consider using rounded How To Pump Water Out Of A Flooded Basement riverbed gravel if possible. The riverbed gravel allows for freer movement of the soil gas and also offers no sharp edges to penetrate the polyethylene. The edges of the film should be lapped at least 12 inches. The polyethylene should extend over the top of the footing, or be sealed to the foundation wall. How To Pump Water Out Of A Flooded Basement Tool the joint between the wall and slab floor and seal with polyurethane caulk, which adheres well to concrete and is long-lasting. Avoid How To Pump Water Out Of A Flooded Basement perimeter gutters around the slab that provide a direct opening to the soil beneath the How To Pump Water Out Of A Flooded Basement slab.
 
 Minimize How To Pump Water Out Of A Flooded Basement shrinkage cracking by keeping the water content of the concrete as low as possible. If necessary, use plasticizers, How To Pump Water Out Of A Flooded Basement not water, to increase workability. Reinforce the slab with wire mesh or fibers to reduce shrinkage cracking, especially near the inside corner of "L” shaped slabs. Where used, finish control joints with How To Pump Water Out Of A Flooded Basement a 1/2-inch depression and fully fill this recess with polyurethane or similar caulk. Minimize the number of pours to avoid cold joints. Begin curing the concrete immediately after the pour, according to recommendations of the How To Pump Water Out Of A Flooded Basement American Concrete Institute (1980; 1983). At least three days are required at 70F, and longer How To Pump Water Out Of A Flooded Basement at lower temperatures.
 
 Use How To Pump Water Out Of A Flooded Basement an impervious cover sheet or wetted burlap to facilitate curing. The National Ready Mix Concrete Association suggests a pigmented curing compound should also How To Pump Water Out Of A Flooded Basement be used. Form a gap of at least 1/2-inch width around all plumbing and utility lead-ins through the slab to a How To Pump Water Out Of A Flooded Basement depth of at least 1/2 inch. Fill with polyurethane or similar caulking. Do not install sumps within basements in radon-prone areas unless absolutely necessary. Where used, cover the How To Pump Water Out Of A Flooded Basement sump pit with a sealed lid and vent to the outdoors. Use submersible pumps. Install mechanical How To Pump Water Out Of A Flooded Basement traps at all necessary floor drains discharging through the gravel beneath the slab.
 
Place HVAC How To Pump Water Out Of A Flooded Basement condensate drains so that they drain to daylight outside the building envelope or to sealed sumps within the basement. Condensate drains that connect to dry wells or other soil may become direct How To Pump Water Out Of A Flooded Basement paths for soil gas, and can be a major entry point for radon. At the very least make sure these How To Pump Water Out Of A Flooded Basementcondensate drains are properly trapped so that the full diameter of at least the section of an elbow is always filled. Seal openings around water closets, tub traps, and other plumbing fixtures How To Pump Water Out Of A Flooded Basement (consider nonshrinkable grout).

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