4 Layers Of Shingles On Roof

That adds up to an average savings of about 1 000 less than a full roof tear off.

4 layers of shingles on roof. Moisture can get trapped under the heavy layers and cause premature rotting of the wood. Richards also estimates that the homeowner saves at least 1 000 in costs associated with removing and properly disposing of the existing shingles. You do add excess weight to the roof framing which can cause the decking and or roof joists to bow and cause a ripple effect in the roof. Framing includes the roof trusses that sit at the top of your house and support the weight of all the materials used to build your roof.

Laying shingles can be hard and hot work but the reward of an attractive watertight roof can be worth it. Some building codes do not allow more than one layer of shingles and some allow up to two contact your local building code office for requirements in your area. Keeping a solid roofing layer of shingles is an important way to avoid water damage and leaks. And roofing guidelines are no exception to the rule.

In most areas building codes allow for up to two layers of shingles installed on a roof. This is especially true if you ve overlayed your new shingles on top of warped shingles. Not completely a huge deal other than tearing off two layers of shingles will raise a new roof price but having four or maybe even more layers is just plain crazy. Think of it this way.

Roofing layers from the framing to the shingles so we ll start at the bottom of the deck and work our way up through all the roofing layers until we reach the shingles and sunshine above your roof. Any more than two layers of shingles can be too much for the roof to handle even if the local building codes don t outlaw it. Having multiple layers of shingles is going to make your roof hotter because the heat gets trapped between the layers which could mean premature aging of the shingles. If there s any curling of the old shingles the new shingles will not lay flat.

The homeowner will have two layers of shingles protecting the roof and the home is less likely to have ice dams he says. Well those days are gone. By leaving the existing layer of shingles on your roof you ll save on both labor costs and disposal costs. Sometimes even with composition shingles also known as asphalt shingles over wood shake shingles.

When i started my real estate career i sold homes with three layers of roofing. Both of those costs can get high if you re dealing with multiple types of roofing material for disposal.