Pre-Compressed Foam Sealing Tapes to Seal Joints between Building Envelope Components Watertight: An Experimental Assessment

Currently there is gaining interest in pre-compressed foam sealing tapes to seal joints watertight between different building envelope components. Little no information available on the parameters affecting resistance of these driving rain. On other hand, several research studies have shown that water leakages can be expected at relatively low-pressure differences and drainage should provided. Therefore, a study was designed one hand assess material installation affect watertightness polyurethane impregnated with an acrylic polymer dispersion evaluate potential providing possibilities, either as two-barrier system or by means integrated cavities. It found joint width, presence airtight coating, position tape relative exterior surface affected sealed joints. Notably, 87% evaluated applied single barrier showed pressure 600 Pa lower. Foam cavities, resulted up average difference 825 Pa.