A Builders Gap in Roof is an Open Invitation for Birds in Colts Neck, NJ

We went out on a service call for a homeowner in Colts Neck, NJ who was hearing birds chirping in his attic. As we arrived and began our inspection along the roof we discovered a severe "roofline gap" or a "builders gap.” This term refers to when the roof decking is left slightly shorter than the rafter ends creating a gap between the roof and the gutter. Although covered by a layer of shingles this gap extends the full roofline of your home and is an ideal place for wildlife and birds to enter. 

The gap was located under the last tab of shingles where the plywood meets the fascia board (the board behind the gutter). As we examined the gap, we found several birds nest inside. Birds nesting in your attic isn’t just annoying but is hazardous to your health. The nesting material they use can harbor many different types of parasites, including bird mites. Bird mites are microscopic parasites that feed on the blood of birds. They have flat, oval bodies, and are nearly white when unfed, but become bright red when recently fed. Once birds have abandoned their nests, bird mites migrate indoors from an abandoned nest, entering through the attic via openings in the ceiling or interior wall surfaces, and feed on the blood of humans. 

For treatment, we sanitized the nesting areas with a product that specifically targets bird mites and then carefully removed all the nests. Next, we installed a product called "leaf proof" all along the roofline gap. A leaf proof is made of an aluminum metal that slips under the bottom of the last shingle in between shingle and plywood and attaches to gutter with a small screw. This product still allows the water to run into the gutter but blocks and protects from birds and other animals from accessing the attic area. Now the homeowner's attic and gutter are properly protected from invasive wildlife and birds.