Insufficient attic insulation allowing the heated air of the attic to escape and reach the underside of the roof deck creating condensation.
Inadequate attic ventilation or not enough ventilation to allow moisture out of your attic.
Install an ice and water shield membrane on your eaves and in valleys as well as all side walls and chimneys
Install an under shingle membrane to protect the roof deck such as Owens Corning's Deck Defense.
Top up your attic insulation to today's building code requirements R60/22 1/4” of pink insulation is the standard and required minimum.
Improve your attic ventilation by adding more vents at soffits and required air vents by building code.
Make sure your eavestroughs are cleaned regularly and sloped properly, so that no water pooling is occurring.
Our standard workmanship warranty is 10 years.
We also can offer our customers our iron clad 25 year workmanship warranty
We #1 Roof is an Owens Corning Platinum Preferred Contractor with thousands of roofs under our belt. We can offer our customers a 50 year manufacturer’s non-prorated warranty that is transferable once. This means that if an issue occurs in the next 50 years Owens Corning will pay the cost of removal, labour and dumpage 100% provided We #1 Roof replaced the roof from the start.