It is coming time to have my roof redone. I have several issues that I would like to try to address if possible.
The design of my attic is not right. There are not soffits and consequently no soffit vents. Before the last roofing in 1989, there was only a 2.5 x 2.5 square with an attic fan on one gable and a smaller opening on the other gable. The attic had gotten very hot and a lot of the decking had delaminated.
The roofers in 1989 put a ridge vent on the top. I realize that this is not right since the gable fan will draw air in from the ridge vent instead of letting hot air rise out.
My house is made up of the original part, plus and addition bedroom over den part.
Since it seemed to not have enough intake area, I thought it would be a good idea to pull down the attic stairs to allow air to flow up to the attic through the stair opening.
I went up there today to check for leaks and saw that the decking on the north side of the roof is black, probably mold. I don't think it is from any leaking. However, the lower four or six feet of the plywood is ok. That is covered by ice and water shield under the shingles.
I think that what has happened is that by opening the stairs, in the middle of the attic (on the original side) I created an air flow that blocked off any air that would come in from the small gable vent on the addition side. Maybe some moisture condensed on the colder north side and made the mold.
I only open the stairs in the summer when it is really hot.
I have two layers of pink insulation properly installed on the floor of the attic. That is moisture barrier down on the bottom layer and no moisture barrier on the top layer.
So, that is the current situation. Any thoughts?
The design of my attic is not right. There are not soffits and consequently no soffit vents. Before the last roofing in 1989, there was only a 2.5 x 2.5 square with an attic fan on one gable and a smaller opening on the other gable. The attic had gotten very hot and a lot of the decking had delaminated.
The roofers in 1989 put a ridge vent on the top. I realize that this is not right since the gable fan will draw air in from the ridge vent instead of letting hot air rise out.
My house is made up of the original part, plus and addition bedroom over den part.
Since it seemed to not have enough intake area, I thought it would be a good idea to pull down the attic stairs to allow air to flow up to the attic through the stair opening.
I went up there today to check for leaks and saw that the decking on the north side of the roof is black, probably mold. I don't think it is from any leaking. However, the lower four or six feet of the plywood is ok. That is covered by ice and water shield under the shingles.
I think that what has happened is that by opening the stairs, in the middle of the attic (on the original side) I created an air flow that blocked off any air that would come in from the small gable vent on the addition side. Maybe some moisture condensed on the colder north side and made the mold.
I only open the stairs in the summer when it is really hot.
I have two layers of pink insulation properly installed on the floor of the attic. That is moisture barrier down on the bottom layer and no moisture barrier on the top layer.
So, that is the current situation. Any thoughts?