Can you put tar paper on wet plywood?

Do not shingle over wet or damp roof sheathing or damp felt paper. The trapped moisture cannot evaporate when the sun heats the shingle. Use similar roof sheathing materials — i.e., plywood or three-quarter-inch lumber — to repair holes that might be discovered in the original sheathing when the shingles are removed.

What thickness of plywood is used for roofing?

5/8-inch
Most Common Thickness The most common rafter spacing is 24 inches, and 5/8-inch plywood is recommended for that. It will support roof loads for most situations and is the standard for most roof applications. Roofs with very heavy loads may require 3/4-inch thickness.

How do I attach tar paper to plywood?

Apply tar paper directly to the plain plywood or other material that defines the shape of your roof.

Measure the size of your roof in square feet.
Use a ladder to reach the bottom level of the roof.
Tack the tar paper in place with a hammer tacker with roofing staples.

What kind of wood is used to make tar paper?

Come July, the wood that’s added is much denser because it’s usually dry that time of year. The summer wood, by it’s very nature, is very rot resistant. Tar paper used to be made by soaking a porous paper made from cotton rag scraps with thinned liquid asphalt.

When was the last time tar paper was made?

The tar paper made between 1900 and 1980 probably will last far longer than the tar paper made today. CLICK HERE to get FREE & FAST BIDS from rough carpenters who are experts at installing tar paper or synthetic underlayments.

What’s the best way to install tar paper?

Another great installation tip is to make sure the first strip of tar paper is installed so it overlaps the top of the foundation at least an inch. You want any water that does get behind the siding to run down and never be allowed to get near any wood. Many homeowners and builders fail to create this mission-critical overlap at the foundation.

How big does a roll of tar paper have to be?

You surely can’t do that with tar paper as it usually only comes in rolls 3-feet wide. This means you’ll have at least four horizontal overlap seams in a typical single-story home. Tar paper will take more labor to install than the newer wider synthetic weather barriers, but if you’re doing the work, it costs you just your time.

Do you need tar paper under your roof?

In heavy snow zones, you need some type of underlayment to be it Tar Paper, Felt or Synthetic, and even ice shield to protect against Ice Dams. Underlayments simply provide several benefits when used. They can be used to weather-in a roof for a temporary roof covering, while the roof is being installed.

What can I use to hold tar paper in place?

Alternatively, you can use galvanized nails and a hammer or an electric staple gun with roofing staples. Space out the nails and staples along each edge, and scatter some along the interior of the tar paper strip. Add only enough staples to hold the paper in place to maintain its waterproof integrity.

Where to get free shipping on 7 / 16 plywood?

7/16 – OSB Panel/Sheathing/Subflooring – Plywood – Lumber & Composites – The Home Depot Get free shipping on qualified 7/16, OSB Panel/Sheathing/Subflooring Plywood or Buy Online Pick Up in Store today in the Lumber & Composites Department.

How do you measure the thickness of roofing tar paper?

Measure the width and height of each section separately. Multiply the width by the height for the square footage of each section, then add the totals. The answer is the number of square feet of roofing tar paper you need to purchase.