Is it time to replace your roof?
Areas showing excessive wear and tear or ‘curling’ can serve as a warning sign that your roof has reached the end of its useful life. If your roof has black ‘streaking’ odds are it is at least 10 years old, preventative maintenance may also be a good idea!
Here are some important procedures that should always be done during a roof inspection and new roof installation:
During the initial roof inspection/estimate with a potential contractor, an attic inspection should be considered a top priority. A visual inspection of the underside of the decking (plywood) can quickly be done to verify its’ condition. Other items to consider: exhaust vents properly installed to vent outside the home, level of existing insulation, and if baffles are installed to allow for proper intake ventilation into the attic.
Before the work has begun, steps should be taken in order to protect your homes property while roofing replacement is underway. This includes windows, siding, plants, bushes, etc. Laying out tarps to catch debris and using plywood to protect vulnerable areas can significantly reduce the possibility of property damage.
–Complete Tear Off of Existing Shingles – Down to the Plywood
In order to know for sure your new roof will last and can be warranted by the shingle manufacturer, the substrate (plywood) must be in good condition. Any rotten wood should be replaced with new plywood or roof boards.
–Replace All Existing Flashing and Underlayments
Installing new aluminum flashing is vital around roof penetrations such as chimneys and skylights. New flashing should also be installed wherever a roof meets a wall. New pipe boot flashings should be installed as well. Ice and water shield should installed around the perimeter of the home – at least 24” inside the heated wall (per code) and also in valleys. The balance of the roof deck should be covered with roofing ‘felt’ or tar paper.
–Ventilation is Critical
Without ventilation, heat and moisture build up in an attic area and combine to cause rafters and sheathing to rot, shingles to buckle, and can even lead to mold growth. Therefore, it is important never to block off sources of roof ventilation, such as louvers, ridge vents or soffit vents, even in winter. Proper attic ventilation will help prevent structural damage caused by moisture, and increase the roof’s life expectancy all while reducing energy consumption and enhancing the comfort level of the rooms below.