Weatherisation and Basement waterproofing In construction, a building or structure is waterproofed with the use of membranes and coatings to protect contents, and structural integrity.
This is the first of a three-part series. Part 1 in this issue explains the technical differences between damp proofing and waterproofing of concrete products. Waterproofing and damp proofing sound like the same thing, and the general objective of both — minimizing the travel of water through a substance — is the same.
However, there are major differences. Some of the key differences between the two are the physical properties of the materials used, the thicknesses applied and the application service conditions. Damp proofing is intended to keep out soil moisture, while waterproofing keeps out both moisture or water vapor and liquid water.
Concrete is a heterogeneous composite building material based on a matrix of relatively inert inorganic aggregates held together by an inorganic binder of hydrated cement paste.
Concrete physically is a porous material and will absorb water much like a sponge when placed on a wet surface or placed into water, allowing moisture to wick from outside to inside in a process known as capillary action.
Differences in the internal void space of concrete of different compositions varies. The composition of concrete has a dramatic effect on its strength properties and also profoundly affects its ability to resist deterioration caused by exposure to various physical and chemical conditions.
Therefore, by being able to reduce the porosity of concrete, the detrimental effects of water can be minimized or eliminated. Damp proofing Damp proofing is a process that involves using a mixture traditionally tar or unmodified asphalt as a coating on the exterior side of a structure and has one main purpose: Typically the damp proofing coating cured thickness is less than 10 mils thick.
It is a basic, acceptable form of treatment in many situations. Damp proofing is not intended to keep all water and moisture out, but rather its goal is to retard moisture infiltration by blocking the capillaries of concrete, which slows water penetration.
Drawbacks of damp proofing include an inability to seal larger cracks, large bug holes, holes left by form ties, surface protrusions and potential damage caused by coarse or careless backfilling due to the limited thickness applied and the brittle nature of the product.
With proper surface drainage, correctly installed foundation drains at the footing, and the absence of hydrostatic pressure that would drive water infiltration, damp proofing can supply adequate, long-lasting protection.
Waterproofing Waterproofing concrete, on the other hand, is designed to stop water infiltration through a concrete structure. Waterproofing materials have the ability to bridge cracks that develop over time due to their elastic, flexible nature and the thickness of the applied coating.
Waterproofing materials also are designed to withstand hydrostatic pressure and are often in excess of 40 mils. According to ICC-ES, a nonprofit company that does technical evaluations of building products, components, methods and materials, waterproofing must be able to do three things.
First, it must stop water vapor, the gaseous form of water that can be released by the surrounding soil and can move through concrete. Second, waterproofing membranes must be able to stop water under hydrostatic pressure.
Third and most important is that waterproofing must be able to span a crack in the treated concrete. Waterproofing is essential in areas where there is significant rain and high water tables.
A damp basement is commonly caused by moisture migrating through a concrete foundation. There may not be a sign of any leak or standing water, but the moisture evaporates, increasing indoor humidity. Another common cause is condensation on the cold concrete walls and floors during humid months. Waterproofing versus dampproofing. Dutch Boy Waterproofing. There is a distinct difference between dampproofing and waterproofing. Dampproofing is intended to keep out soil moisture while waterproofing keeps out both moisture and liquid water. Buildings have been dampproofed for years, a practice that used to be mistakenly referred to as. Need basement waterproofing in Akron, OH? At Garrett Basement Waterproofing Inc., we promise to fix your problem right the first caninariojana.com more than half a century, our qualified professionals have been providing solutions for damp basements, moldy walls and cracked foundations.
As water enters the ground, it collects around the foundation. The higher the water rises up the foundation, the greater the hydrostatic pressure exerted against the concrete surface.
This is especially true in areas with clay soils, as clay will absorb and hold more water than granular soil.RadonSeal Deep-Penetrating Concrete Sealers Your Damp Basement Solution.
RadonSeal Deep-Penetrating Concrete Sealer has been the leading concrete sealer for commercial and residential projects since the late 's. How To Solve Waterproofing Problems Before Painting (The Complete Guide) Dampness of walls and water seepage are common problems faced by homeowners.
Website Tags Waterproofing / Waterproof: This often refers to penetration of water in its liquid state and possibly under pressure, whereas damp proof refers to resistance to humidity or dampness.
Permeation of water vapour through a material or structure is reported as a moisture vapour transmission rate. Waterproof, Roof Waterproof Pretoria, waterproof roofs Pretoria, waterproof walls.
If rising damp is the cause of dampness in the wall, Safeguard Europe Ltd is a UK-based company specialising in providing damp-proofing and waterproofing solutions for the construction industry. Safeguard was established in to produce products for the refurbishment of existing buildings. NuSite Group is a Toronto based basement waterproofing and foundation repair company that specializes in Basement Waterproofing, Basement Lowering, and Foundation Repairs.
Purpose. Waterproofing is usually required by building codes for structures that are built at or below ground level. Waterproofing and drainage considerations are especially important in cases where ground water is likely to build up in the soil or where there is a high water table..
Water in the soil causes hydrostatic pressure to be exerted underneath basement floors and walls.