How To Roof Against A Wall

Housewrap creates the foundation.

How to roof against a wall. Follow the photo for illustrated instructions. In an existing construction you might have siding whether it be vinyl wood or brick. Flat roof and flashing against brick wall install base flashing under shingles or over metal roofing material. Flashing is usually made of sheet metal and is used to seal and protect joints in a building like those where a roof meets the brick walls of a chimney from roof leaks by directing the flow of.

For areas where the walls meet the roof you will need to use the step flashing technique. A corner flashing piece can either be bought from the hardware store or it can be made using a regular step flashing piece. The proper installation of flashing at the point where the roof meets wall is to use metal step flashing. Ideally i like to start by installing a 3 ft.

The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high. In this case we ve gone against new construction. To tie the roof into the siding the tin roofing panels must first be installed to. Sheet of housewrap or even better a piece of self adhering roof underlayment to the wall before the first truss or roof rafter is placed against it.

Even though roof flashing is one of the most important elements of a roof not many people know how to install roof flashing against a wall properly. There you have a z trim and an end wall flashing that have been joined using a stitch screw. Figure 1 roof plane butting against wall. The sheet acts as a backup at a vulnerable junction.

How to install roof flashing against a wall with a corner when there is a corner where the roof meets the wall you will need a corner flashing piece. Metal step flashings are pieces of metal that are shaped like an l at least 5 inches wide and tall and 8 inches long as shown in figure 2. On lean to roofs where a sloping roof plane meets the siding endwall flashing is necessary to prevent leaks. Proper roof wall abutment flashing examples.

A roof or wall that is not properly sealed off from water can be extremely costly to fix not to mention the hassles that accompany the unwanted water. Figure 2 step flashing. Metal flashing also called roof flashing goes against a stucco wall to protect it from water damage. Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof.