Asphalt shingles in odd shape Roof surface: Strontium was thought to cause corrosive gases to release. Just so you know, the manufacturer now makes these shingles out of recycled TPO thermoplastic olefin , a material that is more durable and stable and has more UV inhibitors than the old formulation. Flashing, counterflashing, step flashing, expanse contractive qualities of the roof deck, a chimney. Wha to Do with Old Roof Sheathing. When insulating any roof, you need an air space of at least two inches between the underside of the roof sheathing and the top of insulation. What's happening is that moisture vapor inside the house is getting between the ends of the roof panels because they weren't sealed properly with foam.
Encased Roof Shingles - InterNACHI Inspection Forum
Most roofing contractors offer a maximum of 5 years. Barry is correct, that is best practice of overframing. Jonas's Web site Find all posts by Jeffrey R. What's a home inspector to do? Shingle starters are typically standard 3 tab shingles.
Schedule your inspection online. There are many systems available on the market which contain recycled metal. Baldanza Visit Charles L. The 6" restriction is because wide boards greater than 6" continuously expand and contract as the humidity and moisture conditions change.
When shingles overhang too much, they are more likely to have wind up lift and to blow off. Find all posts by Kirk Dimsey. The company serves as a valuable information resource, and authored an article published in the September ASHI Reporter. Now trending on TOH. I'm thinking about installing them on my house and wonder how his are holding up. Just support the edge of the shingle on a block of wood as you make each cut, and change blades frequently.