One roofing company shared their experience with bad tar lines, stating 'One time I did a roof inspection for a client that had an IKO roof put on only three years ago. Many customers have complained that several brands, like the IKO Cambridge shingles, repeatedly failed to stick and kept blowing off. Most roofing shingle manufacturers will feature a tar line on their roof shingles, which helps them bond together. No matter what type of shingles you buy, it's always important to remember to keep photos and receipts so you'll be prepared if you do have to file a claim. 'Finally, my roofer said these shingles are defective'. Some customers have even claimed that shortly after installation, their shingles kept blowing off after several repairs. While it's typically fair to blame failing shingles on poor installation from the roofer, sometimes it's the materials that prove to be defective. Even one roofing contractor claimed, '95% of blow-off repairs we do are IKO shingles. Despite most of IKO's architectural shingles boasting wind resistance up to 130 MPH, many customers have complained of blown-off shingles, leading to multiple warranty claims. One of the most common complaints among homeowners is how often their roofing shingles would blow off in high winds or severe storms.
