What Is A Roof Replacement Job?
In the roofing services world, a lot of terms get tossed around that can leave customers feeling confused. A roof replacement project sounds like something pretty extreme, but the project is usually fairly tame. Even when one does get more involved, it's justified by necessity. Let's explore what a roof replacement is and what you need to consider before having your roof replaced.
Replacement vs. Re-Roofing
Within the industry, replacement efforts stand in contrast to what is called re-roofing. When doing re-roofing, the goal is simply to place a new player of materials on top of the existing ones. Accounting for the fact that some products, especially asphalt shingles can weigh hundreds or thousands of pounds when covering a full roof, you'll quickly realize there's a limit to how often you can do this. Depending on the snow loads that occur in your region, you can expect to be able to put between three and six new layers of shingles on a roof before it all has to come off.
Stripping the Roof Down
In its ideal form, roof replacement work is largely about getting all those layers of materials off a house. All the shingles have to be stripped off, and the underlying materials are torn up until you get down to the decking. Unsurprisingly, this sort of work usually calls for bringing in one or two roll-off dumpsters to collect and carry away the discarded roofing materials.
With a minimal amount of luck, the supporting structure of the roof will be in great shape. It's not uncommon, however, for older decking to begin to rot after decades of use. Putting new materials over compromised decking is a roundly bad idea, and some repair work might have to be done to prep the decking for new materials.
Layering It On Again
A big part of a roof replacement effort is redoing everything. This means the drip edge, the felt and the flashing all have to come off the roof. New felt is put down, and flashing and drip edge are re-installed. In some cases, it may also be necessary to replace vents, soffit and fascia, gutters and other nearby features. Once there is a new layer of roofing felt down, the new materials can be nailed into place. A fresh cap will be installed on the top of the roof. Some roof caulk may also have to be applied in spots where the materials meet other features, such as the chimney.