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� <br /> i � <br /> ��\\�� ' C11►/IT <br /> CERT7FIE►7 f'f1015T1JRE TE5TIf1G <br /> Summary <br /> "Red"or"Orange"Circled areas with known damage <br /> 1. Further investigation is needed in areas to determine the extent of any wood rot, known as damage. Further <br /> investigation usually requires removing a small area of the siding to identify the source and cause of the moisture <br /> intrusio n. <br /> 2. Cause(s)for the moisture intrusion should be determined prior to repairs or remediation beginning. <br /> 3. Remediation should include removal and replacement of all damaged materials, "back to good wood", and all <br /> exposed areas cleaned with mold killing material. Recommend reconstruction should follow best construction <br /> practices, not just minimum code requirements. <br /> 4. If further investigation is needed, ask us about our Certified Dry Program. Our skills and experience are used to <br /> open and analyze the suspected damaged areas,find the source of the moisture and help determine the proper <br /> steps the contractor should follow. We also assess the quality of the work being performed by the contractor and <br /> document the history and detail of those repairs. This gives future buyers a non-biased knowledgeable report of <br /> repaired disclosable issues. <br /> Window and door leak factors <br /> There are several factors that generally contribute to higher moisture readings below windows which can include: <br /> . The perimeter sealants around the windows and doors are missing or existing sealants are inadequate. <br /> . Window and door units themselves can leak through the mitre joints (the joint between the vertical and horizontal <br /> casing pieces). Windows can leak through some other element such as mullion joints of multiple units, damaged <br /> sashes or through alarm sensor penetrations. Doors can leak under the threshold and the lower cornerjoint. <br /> • The decorative bands,trim boards or stucco applied tight or over the outside edge of the window may allow water <br /> intrusion through a gap, small cracks on the flat surfaces, cracks below the windows. <br /> • Condensation occurring around the inside of the window possibly entering the wall cavity. Condensation occurs at <br /> air leaks around window sashes, window glaze, sill joints and other window component. Improperly installed <br /> insulation or vapor barrier can also cause a cold spot around the interior window frame. <br /> • Lack of head flashing may allow moisture intrusion from above the window. <br /> • Head flashing caulked, unable to drain. <br /> • Window sills may not have sufficient slope to adequately drain water. Water pools on the sills and enters at joints <br /> and sill internal edges. <br /> • Storm windows may not have sufficient ability to drain water. Water backed up behind the storms will drain into <br /> the walls of the home. <br /> • Head flashing having a negative slope will allow water to drain down the sides of the windows. <br /> Maintenance of the home is important to prevent moisture intrusion into wall cavities. Caulk, seal or flash all openings <br /> where water may enter the wall cavity. Maintain the humidity level in the home at around 30%to prevent <br /> condensation issues from occurring around windows and in the wall cavity, especially during the colder months. If an air <br /> exchanger is installed in the home, clean the intake vent screens often. Keep all filters changed regularly. Keep gutters <br /> clean, down spouts attached and draining away from the home. When landscaping, keep the grade sloping away from <br /> the home and at least 4" below any wood portion of the home. <br /> Page 10 <br />