Not sure if that s the right technical term i didn t realy notice it before tearing off the shingles but some of the sheathing is a little wavy.
Wavy roof sheathing.
It immediately detracts from the appeal and look of a home.
To avoid having a wavy roof use a licensed roofer and not just a.
From that low resolution photo it appears that the lines trace the ends of the osb panels the 4 foot ends of the panels and not particularly the truss lines.
When also combined with thin 1 4 plywood or 3 8 thick roof sheathing we also sometimes find sagging even between rafters.
Tuftex multi wall 6mm panel clear 4 ft x 8 ft corrugated clear polycarbonate plastic roof panel.
A roof can only be as good as its roof deck and your roof sheathing is the sheet material which forms the surface that the shingles are nailed to.
Which is why the roof looks wavy after the roofers finished.
Usually sheathing is made from osb or plywood and it is manufactured by laminating thin veneer strips or wood fibers under pressure.
Tuftex polycarb 2 17 ft x 12 ft corrugated gray polycarbonate plastic roof panel.
The waviness generally does not cause a roof to leak but it may be architecturally unsightly or occasionally can indicate a problem.
The old shingled roof was just removed and new shingles installed.
For pricing and availability.
But the roof rafters and thus its surface had sagged badly enough to be noticeable from outdoors as a rather wavy roof.
I m going to replace at least two boards.
Most that become wavy do so over time.
Wavy or sagging roofs can be a warning sign that there are foundation problems with a house however there are a number of other reasons for a roof to sag or be wavy as well.
Is there a rule of thumb on when you recommend replacing it.
We will highlight the 4 main causes of a wavy or warped roof.
When a homes foundation shifts is not level or damaged then the foundation issues may be reflected by a sagging bowed or wavy roof.
The problem is not the roofers but the fact that your sheathing.
Potentially it could be caused if the shingles were not properly aligned or not nailed fully.
Ultimately there is no single answer for why a roof may look wavy but could be a combination of factors.
While a wavy roof is aesthetically unpleasing does it affect the performance of the roof.
Poor framing practice is one of the.
Roofs may become wavy over time or they may be built that way to start with.
For instance put a straight edge on it and if you find a 1 2 dip then replace it.
Osb roof sheathing wavy with truss lines visible the third photo is more telling than the other two photos.
The original rafters of this home had not become disconnected at the ridge nor at the top plate.
