Abstract
<p class="first" id="d9278859e63">Wind driven rain (WDR) is one of the most common sources of moisture risks affecting buildings in the UK. Water penetration can lead to defects such as ineffective insulation, damp inner walls and freeze-thaw damage, causing issues in both energy efficiency and wall integrity. Surface waterproofing products have shown great potential as a new method of improving the moisture condition in buildings. This paper is focused on real size cavity walls tested under WDR exposure to study the hygrothermal performance of surface waterproofing products. Test results show both acrylic-based liquid and silane/siloxane blend cream products were capable of lessening moisture enrichment of masonry cavity walls under cyclic WDR loading.
Highlights
Wind driven rain (WDR) is one of the most common sources of moisture risks affecting buildings in the UK
This paper is focused on real size cavity walls tested under WDR exposure to study the hygrothermal performance of surface waterproofing products
Surface waterproofing products available in the market have shown great potential as a new method of improving the moisture condition in buildings by enhancing the hygric performance of masonry facades under water exposure, the extent of which they can improve the hygrothermal performance of cavity masonry walls has not been well established
Summary
Wind driven rain (WDR) is one of the most common sources of moisture risks affecting buildings in the UK. This paper is focused on real size cavity walls tested under WDR exposure to study the hygrothermal performance of surface waterproofing products. Test results show both acrylic-based liquid and silane/siloxane blend cream products were capable of lessening moisture enrichment of masonry cavity walls under cyclic WDR loading. Surface waterproofing products available in the market have shown great potential as a new method of improving the moisture condition in buildings by enhancing the hygric performance of masonry facades under water exposure, the extent of which they can improve the hygrothermal performance of cavity masonry walls has not been well established. Up to 8 more cycles were applied or the test was concluded when water penetrated the walls’ cavities and was observable on the surface of the interior leaf
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