It often occurs next to a roof penetration such as a chimney or dormer or at the edge of the roof as in the photo above and is easily verified by checking the area in the attic.
I have a dip or sag in my roof.
My rafters are 16 oc and the roof is 4in12 plywood deck about 1 2.
First let us understand how common rafter framing performs.
The sag or dip is then often related correctly or incorrectly to the big snow storm of last month last year or 1996.
So what causes a roof to sag.
If a roof dips in between rafters or trusses it s probably because the sheathing is too thin for the span.
Repairing a roof rafter in this condition is not a hard project but it can be difficult if there is not easy access.
Often the framing can be bolstered and beefed up internally but if the roofing material needs replacement anyway it may be best to tear off.
I have a dip it looks like a sagging rafter.
Dips and sags can have a variety of causes.
The sheathing will be dark and discolored when viewed from below with possible mold growth.
A roof rake can help you deal with lighter snowfall.
Decay can occur over time due to a number of reasons including leaks in the roof or leaks from guttering or downpipes wet rot or even insect attacks such as termites damaging the ends of the bearings.
A dip or sag in your roof.
From the out side you can see a dip or maybe it can be described as a valley in the roof.
Roof leak leakage of the roofing that has caused rot and partial collapse of the sheathing in the area of the leak is the 1 cause of a roof dip.
Remedies for a sagging roof there are a number of remedies for traditional rafter style roof frames depending on the problem and its severity.
If you suspect snow is causing your roof to sag for your own safety and to protect your roof consider calling a professional to clear your roof of heavy snowfall.
When they observe a sag or dip in their roof they begin to wonder why this has appeared after all these years.
Not sure on how to descripe it.
Its about 2 3inches deep in the center.
If your ridge line has begun to resemble a swaybacked horse or you can see obvious low spots in the surface of your roof it is time to call a reputable roofing contractor.
Hi was just looking for abit of advice we are just buying a new house and the surveyor has advised us to get checked a slight dip in the rear roof the house was constructed about 1960 and i think its the original roof i have a roofer coming round to have a look who says alot of the time its just the way the weight of the roof has lay.
If you notice that there is a visible dip in your roof chances are you have a problem with one or several rafters and you may soon be facing more issues like water leaks bowed out walls or your roof caving in on you.
Got to our blog post why is my roof leaking.
If you can see a dip curve or swag on the peak when standing in the street your roof has a problem.
You can simply have the old sheathing replaced with better material when it s time for new roofing.
Incorrect snow removal can further damage your roof making it more vulnerable to water damage and worsened sagging.
An inspection in the attic and i do not see any cracked or sagging rafters.