How can I be sure our contractor installed insulation correctly?
Recently our contractor indicated he was complete with the insulation installed with cellulose in the existing walls at our home and wanted a signoff for customer satisfaction. Our home has cedar shingles, tar paper and pine tongue and groove sheathing. He removed the outer shingle and drilled through the tar paper and pine sheathing to install cellulose. THen he installed a styrofoam plug and put shingles back over. However, my husband was concerned that the area that was drilled and then filled with styrofoam may have moisture or leakage. He also thinks some tar paper was ripped in the process. WHen my husband brought this to his attention he sealed the accessible holes with tyvek paper. Our contractor says that moisture will not get behind the shingles and placing protection over the already covered holes is unnecessary. What do you think?
Posted Aug 10, 2014 5:31 PM ET
Edited Aug 11, 2014 6:26 PM ET
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