Basic shingle roof maintenance

The homeowner called 
He wants the roof checked and serviced to prevent roof leaks 
Keyword:"Preventative maintenance "

The vents on the roof need to be checked

Normally the exposed nail heads will rust and pop up allowing wind driven rain inside the attic 

Working satellite dish with exposed bolt heads.the water will  find a way in unless this roof protrusion gets sealed 

These vents need to be replaced in the near future.the snow and ice have taken a toll 

The base will be sealed as well as the shingle keyways to prevent water traveling from a different angle.

The rusted nail heads are a clear indication water has traveled underneath the shingle tabs.possible ice dam not to mention. The roof its a low slope.

All the vents shown were nailed down and sealed with high  quality caulk ( urethane based ) this material lasts a long time.its always exposed to the elements .

All of these vents shown need to be replaced to allow the proper air flow inside the attic.

This roof will be replaced soon 

The work done its temporary to prevent further leaks.

The soil stack pipe was sealed with roof cement previously since then this had expanded and contracted resulting on large gaps. All of these small issues will result in a roof leak if not addressed.

Old roof cement cracked open at the base of the chimney.we sealed these openings for the time being.

Visible cracks on the existing material 

We applied roof cement and tooled inside the crevices and cracks.

This will stop any possible roof leak 

Antenna brackets and satellite dish were sealed at the base 

These are all a source of a roof leak 

All the roof protrusions have to be sealed.

Some of the shingle have lost the adhesive and ready to blow off 

Adding a bit of sealant to act as "glue around the base of the roof vent shown here.

We applied sealant  on the adjacent shingle keyways to stop water from traveling towards the base of the vents.

The base was sealed.this is the best measure  to keep this roof watertight 

All the roof protrusions need to be addressed.