May Lead To Delamination Of The Roof Sheathing

The soffits didn t appear to be congested with insulation however the ridge vent had a filter in place.

May lead to delamination of the roof sheathing.

Every re roof requires a close inspection of the substrate. What is the spacing requirements between the insulation and the roof deck sheathing at the location of the vent. In the attic the roof sheathing appears to be delaminating and some staining was observed. Particularly on the roof.

The horizontal board enclosing the ends of the rafter projections or tails is normally referred to as the board. Defects in those sheets or it could be that the ventilation was blocked only at those sheets. One of the implications of high moisture levels from either condensation or leakage is delamination of plywood sheathing. Delaminations commonly affect single ply and fully adhered roofs.

In the future looking for a date stamp on the affected sheet or other sheets in the same general area may help an apa rep. The worst cases result in patches of rot. Depression between the rafters. Roof decking plywood delamination if you have a home twenty five years or older you may want to consider the condition of the plywood.

I had my roof sheathing replaced a year ago. If this is the case the solution is twofold. Incidental roof leaks particularly ones that go unnoticed can delaminate plywood sheathing or cause osb to swell. It was plywood and had delaminated.

De lamination of the roof sheathing may cause. That being said what the home inspector saw may or may not be mold. But probably not due to the amount of delamination. This is sometimes accompanied by buckling.

This may be indicative of what. 3 8 plywood roof sheathing. The contractor thought it might have been due to excess moisture in the attic. It may be mfgr.

To improve it make sure your home has continuous ridge and soffit ventilation. If the environment is humid moisture can get trapped between the membrane and insulation. This winter i went up. It more likely may be the early stages of decay and delamination of the roof sheathing.

The attic was vented by soffit and a ridge vents. Panel type roof sheathing may lift off the rafters in a regular pattern. High moisture levels break down the glue in the plywood and allow the plies to delaminate. Between the years of around 1964 to 1975 homes being built saw the installation of what was first generation fire retardant plywood.

First deal with the cause which is inadequate attic ventilation. Like blisters delamination can come from improper installation in inclement weather. In determining if it is.