What Kind of Wood is Used for Roof Decking?
A solid, reliable roof starts at the very foundation, the roof deck. A roof deck needs to be strong enough to withstand the nails that come from shingle installation, in addition to the wear and tear that occurs over the years. Builders typically prefer plywood for its strong water resistance, structural stability, and affordability. Oriented strand board is another preferable roof decking material. Oriented strand board costs less than plywood, which is an admirable trait. Both oriented strand board (OSB) and plywood are acceptable choices for most jurisdictions.
What is the Best Roof Decking Material?
As previously addressed, the most common materials that are used for roof decking are oriented strand board and plywood. The plywood that is used for roof decking is usually known as sheathing. Sheathing carries a grade stamp that indicates its load and span ratings, as well as other performance facts. Opinions differ according to which material is considered to be the best for roof decking purposes. Plywood is more expensive than OSB, however, it is reputed to perform better on the roof. Other roof decking materials include:
- Tongue and groove. Tongue and groove are usually used as roof sheathing when a ceiling will not be installed, and the tongue and grooves will be visible inside the house.
- Step sheathing. Step sheathing is typically reserved for shingle, shake, and tile roofs.
- V-Rustic. This decking is composed of 1-by-8 boards that are commonly used on the eave and rake overhangs when the soffits will not be installed rather than as roof sheathing.
Is Roof Sheathing Necessary?
One of the most important parts of a roof is the sheathing. When most homeowners consider their roofs, they may not know that there are so many different components. Roof sheathing is an important layer of roofing material that sits underneath the top layer of shingles. The sheathing can either be open, with gaps between the boards or closed, depending on the needs of the structure. Before sheathing was incorporated into roofs, most roofs had a simple layer of boards underneath the shingles. Boards are not as good as sheathing because the spaces between the boards were very susceptible to leaking, and water damage would accumulate. The sheathing is now universally used because it is a continuous, solid layer beneath the shingles. GAF feltbuster roof deck protection is a specific kind of synthetic underlayment that provides effective resilience to wind and rain.
How Much Does it Cost to Replace Roof Decking?
The price of roof decking can differ dramatically. The reason why? Different roofing companies charge different prices for their labor across the country. Generally speaking, homeowners can expect to pay approximately $70 to $100 dollars for each sheet of plywood. A 4 x 8 sheet of plywood covers about 32 square feet of roof area, and the average roof measures around three thousand feet.
How Often Should You Replace Your Roof?
At the end of the day, the type of roofing material that is on your roof will determine how long it will last. A cedar roof will last approximately twenty years. In drier climates, a cedar roof is more likely to need frequent repairs and replacements, based upon whether or not it is prone to splitting. Composition shingles last anywhere from 15 to twenty years, asphalt shingles last anywhere from fifteen to thirty years, and metal roofs have long lifetimes of fifty to seventy-five years of age. It is true: roof replacements increase the value of your home. One of the other significant ways homeowners can increase their home’s resale value is through a bathroom or kitchen renovation. Plumbing repair for bathroom & kitchen in Oak Park, IL can increase the functionality of your underground pipelines.
Is Roof Decking Treated?
Pressure-treated lumber is superior to untreated plywood for a roof deck due to its increased water resistance, enabling enhanced durability. Contractors generally recommend treated plywood rather than regular plywood for roof decking because condensation can build up on the sheathing and cause rot. Roofers understand that when it comes to the roof deck, the amount of water that gets on the wood is a concern. Pressure-treated wood has natural water resistance and is not affected by insect damage or rot.
Roof Decking vs Sheathing
Roof decking is also known by its alternate name, sheathing. Roof decking makes up the surface that roofing materials adhere to. Made from thick, strong materials, roof sheathing is a very large board that is nailed to the rafters, trusses, or roofing joists.
Roof Decking Boards
The roof decking boards are a vital part of the beginning phase of roof building. Roof decking is a series of flat boards that are stretched across joists and trusses and firmly attached. The roof decking boards add an extra layer of protection between the roof and the home. The roof decking boards also offer a surface for the weatherproofing materials such as the underlayment and the shingles.
Roof Decking Cost
Eventually, the time must come for a roof replacement. The ravages of weather and time can be substantial, which is why it is important for homeowners to budget for such eventualities. The average cost of replacing a 1,500 square foot roof ranges from $6,750 to $40,000.
If you think you need new roof decking in St Paul, MN, call Quality Exteriors, Inc. at (651) 796-2341 to speak with our staff about making an appointment today!