Because driving nails up into the sheathing material will make things worse glue a piece of 1 inch rigid styrofoam to your piece of plywood.
Warped roof deck.
Solutions for warped roofing.
Plywood in a roof deck creates a warped effect when holes in the exterior allow water inside your home.
Internachi describes some of the effects multiple layers of roofing can have on a home.
Here s how to minimize or remedy this problem.
An improperly installed roof deck or the sheets of plywood that are underneath your.
All but the tiniest decks have large horizontal beams resting on top of the support posts or piers.
Warped deck joists can be a problem whether you re building a new deck or resurfacing an old one.
Warped roof deck problem.
Poor installation can result in a wavy roof.
I e the original roof was a light wood shingle roof and the new replacement roof is a concrete tile roof weighing 5 or 10 times more than the original roof.
Underlayment not lying flat.
As always contact a professional for a thorough inspection and roofing consultation.
If a roof has been re roofed with heavier roofing material than the original roof was engineered for.
These include weaknesses in the overall structure.
The beams in turn support all the floor joists.
In addition having several layers of shingles creates ventilation problems as well as structural issues.
In much the same way that poorly.
Poor installation may also create movement in the plywood.
Locate nails that hold shingles in place by lifting up on the end shingle above the one you plan to remove.
Roof decks can warp for a couple different reasons but the most common reasons stem from issues with the.
Any solution for a roof deck.
This is the result.
If the underlayment or the vapor barrier underneath your roofing material becomes.
Joists dry out changing the moisture content and causing them to warp and twist.
Have you ever looked up at your roof or a neighbor s and thought the shingles looked uneven.
Remember you get what you pay for.
It is important to use a reputable trusted contractor for your roof.
Be careful if you are inspecting the roof yourself as a warped roof is potentially dangerous to walk on.
Remove the shingles over the area of the rotted roof decking identified previously.
Felt not lying flat.
Next place your piece of plywood and styrofoam foam side up against the damaged roof decking.
Look underneath your deck at the horizontal support beams to ensure they aren t sagging warped or damaged.