Latest Discussions : Roofing & Siding


12:11AM | 05/20/04
Member Since: 05/07/04
3 lifetime posts
Recently had a new roof installed. Some cedar siding along the side of my house was replaced where it meets a lower roof for my garage. Roofer said he couldn't properly flash this lower roof without pulling out some of the siding. Now, the shingles on the garage roof don't look flat - seems like they slightly slope toward the point where the house and the new siding meet. There is a line of maple seeds that remain on my roof after a rain. Shouldn't they wash down toward my gutter? Should the new siding meet the roof or should there be a 1/2 inch gap? I'm afraid there may be water damage from this in a couple of years. We primed and painted the cedar boards ourselves after they were installed.


08:56AM | 05/20/04
Member Since: 07/01/03
549 lifetime posts
Where the roof meets a vertical wall, step flashing is required to be installed. The flashing slips under the siding and between layers of roofing shingles. The step flashing ensures that any water that runs up against the wall is deflected back onto the roof surface. There is typically a gap between the roofing and siding as you describe. This protects the siding, and allows the flashing to work properly, and eventually to be replaced without tearing off the siding again. If you look into the gap, you will see the overlapping metal flashing (higher pieces lay over lower pieces).

The flashing adds a little thickness, and may not be laying completely flat. A slight rise along the wall should not be a concern. Because the wall probably has an overhang, There may be less rinsing action for the roof along the wall, leaving some seeds and debris. I see nothing in your post to indicate a problem or improper installation.


09:00AM | 10/19/04
Member Since: 10/18/04
1 lifetime posts
A home inspector pointed out that there is no gap between the Hardiplank siding and the roof surface at the dormer windows on a home I'm trying to buy. The Hardiplank installation instructions call for a 1"-2" clearance, or as specified by my roof manufacturer. This is new construction by a respected builder in Atlanta. Can anyone help me figure out if this should be a deal breaker? Any suggestions or help would be appreciated... I'm not having much luck finding installation instructions on siding gaps/reveals on the shingle manufacturers' sites. Thanks all. love the discussion board.

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