Suggestions for working on Roof - fixing issues

[The dude]

I had an inspection completed on a house I am planning on buying

2001 new roof was done - not 100% correct There is slight mold forming near the ends of the house.

The problems The ridge vent has black paper covering 75% (I need to climb up and cut this out I guess) The bathroom vent goes direct into the attic

The roof has the ridge vent and sofit vents. Should I add gable vents on the edges of the house?

Since the bathroom is large with a tub and shower and will be the most used, I want to add a higher end remote fan type installation vented through the roof. How hard is it to poke through the roof and make sure the shingles and sealing are ok? Is this a DIY job?

[Oren]

HAVE the seller fix all this mess, before you close. Make it contingent on the sell/buy. You could ask for money off the sale price. I would prefer they fix the issues, BEFORE I bought.

[The dude]

?? that has nothing to do with my question.... I am not asking how to negotiate on a house. I already did that.

[Oren]

Oh! I read " planning on buying "

1) cut the paper out and away from the vent(s). 2) some suggest a Panasonic bath fan (quality). Fix the fan venting into the attic and I guess some of the ice dams stop/reduce? Do not vent into the attic. 3) I would not add another vent until 1 & 2 above are addressed. How many vents in the attic already?

[The dude]

The entire top ridge is a vent The sofits are new and are vented all around the house.

The inspectors said the same thing, cut the paper back and it will probably be fine. And vent the bathroom fan out the roof

I dunno how much work it will take the vent the fan. I need to cut a hole in the roof, but not sure how it is supposed to be re-sealed.

[Oren]

Pick your poison, some fans vent through the wall.

[Colbyt]

I can't see the other stuff to understand the exact problem. For example, how will you remove the felt paper without removing the cap and vent. Did the morons even cut back the sheathing under the paper?

Installing a new roof vent is simple if you follow the directions. The flashing for the vent tucks under the shingles to the side and top providing a very good seal on most roofs. A portion of the shingle under the flashing may or may not need to be removed depending on the size of the vent.

In a retro install you may need to silicone the nail heads on the lower portion of the flashing if you can not raise the shingle tabs high enough to nail under them which is the way it is done in a fresh install.

Colbyt

[hallerb]

his out I guess)

much better to vent thru the wall, the fewer roof penetrations the better

[The dude]

The sheathing was cut correct. It was just when the black paper was rolled that it was not cut away

[Paul Franklin]

You should not use gable vents along with Ridge and soffit vents. If you do, it can interfere with the desired air flow from soffit to ridge.

Fantech inline fans are really nice and very quiet. If you can vent through a side wall without running the vent line too far that's usually preferable to going through the roof, But it's no big deal to go through the roof. There are several styles of vent flashings for this. See here for an example.

The vent will require cutting back the shingles a little and has to sip up under the shingles above it.

HTH,

Paul F.

[The dude]

I am not sure how I would vent through the wall, unless the fan was mounted on the wall.

If I mount it in the ceiling, that is the attic.

[HeyBub]

Put a 90° elbow on the pipe and vent the stuff through the soffitt.

[The dude]

How can you vent through a sofit if the roof is sucking in on the sofit?

It will just suck back > The dude wrote:

[salty]

Adding gable vents would be counter-productive. The soffit vents and ridge vent work as a system. Adding gable vents will "break" the system and it will not work as well.

[Colbyt]

In that case if you can reach it from the attic the fix is quite simple. A utility knife is all you need.

Colbyt

[HeyBub]

No it won't. It will be diluted by the outside air. If that still bothers you, block off the soffit vents in the vicity of the exhaust pipe.

[Red Green]

The dude wrote in news:656dnbHuS_wiqlnVnZ2dnUVZ [e-mail]:

That should be all it takes. Utility knife.

Bad. Shortens roof life. Contributes to mold formation.

This is good.

No. Soffit to ridge vent circulation path would be interupted by gable vents. Less intake from soffits. installing gable vent will actually create a path from the gable right to the ridge.

Yes, if you do it right. Proper shingle lapping with vent hood, roofing cement/polyurethane. Any exposed nailheads should be covered with polyurethane vs roofing cement. Roofing cement deterioates quickly when exposed to sunlight. Through the roof is usually good in that it is the shortest run with no bends. Bad in that potential is there for leaks. Probably no more so than vent stacks though.

Out a gable end often requires a longer run with bend(s) but quite acceptable. Piping must be properly sloped to avoid puddling. Note: Local codes determing maximum run. All bends subtract from that max.

[BobK207]

Answers to your questions......

Should I add gable vents on the edges of the house? (I assume you meant "ends") ....... No unless you really insist.

How hard is it to poke through the roof and make sure the shingles and sealing are ok? Not hard.

Is this a DIY job? For me, yes. Hard to tell about you......(from your writing you seem pretty green on house repair issues & DIY house fixes)

I'd venture a "No" wrt to you DIY'ing the "poke through the roof" successfully.