how to flash top brick course

by Elena Legros 6 min read

Chalk a straight line about 2 inches above the back of the base flashing. Using the circular saw and masonry blade cut a slot about 1.5 inches into the brick so that the overlapping flashing or counter flashing will slide into the slot. Caulk the slot after the flashing has been installed.

Full Answer

How do you run flashing on brick walls?

Run the L-shaped flashing up under the bottom row of siding so that it tucks under the final, bottom row, and on top of the wall and on top of the last row of bricks before you cap it with the cap stones/ledge pieces.

What is the best type of flashing for brick wall cladding?

Copper is also an excellent choice for brick flashing. In addition, there are flashings that rely on mechanical connections through a shingling effect that are specifically designed to hold up to the rigors of masonry wall cladding.

Can I use Z track Flashing for brick work?

You may be able to purchase flashing meant for brick work or in some cases you can modify Z-track flashing to work. Install the ledger board according to local building codes.

Can you use brick flashing on a porch?

Brick Flashing For Your Front Porch Ledger and More Like ledger flashing, installing brick flashing is not difficult to do and will extend the life of your front porch or deck. Water and ledgers don't mix and that is why most fail.

How do you install flashing over brick?

0:030:45Installing Flashing at Brick or Stone - YouTubeYouTubeStart of suggested clipEnd of suggested clipAt points where vinyl panels meet brick chimneys or stairs install. Step flashing start at theMoreAt points where vinyl panels meet brick chimneys or stairs install. Step flashing start at the lowest point and overlap as you work up flashing can be created using aluminum trim coil.

How do you flash a brick ledge?

0:102:47Flashing before Brick or Stone - YouTubeYouTubeStart of suggested clipEnd of suggested clipThis comes into a tube. Like this and you can see this red stuff it's a gun down here. This is thatMoreThis comes into a tube. Like this and you can see this red stuff it's a gun down here. This is that our guard. We're going to run two beads on top of our stone ledge.

Does flashing go under brick?

2:436:27Flashing at the Base & Weep Holes - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnother light bed of mortar on top and then lay the brick it'll settle into place just fine thatMoreAnother light bed of mortar on top and then lay the brick it'll settle into place just fine that piece of flashing will be sandwiched in that joint.

How do you flash a window in a brick opening?

1:067:31Flashing at Windows (Head, End Dam & Sill Details) - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe rough openings once they're crossed with the paper you just cut the paper in the center of theMoreThe rough openings once they're crossed with the paper you just cut the paper in the center of the opening. And kind of fold it in tuck it into the opening a little added protection there.

What is flashing in masonry?

Masonry contractors are usually directed to install flashing with their masonry product. Flashing acts as a barrier which redirects moisture away from building interiors and back toward the exterior of the wall.

What is brick flashing used for?

Even with good building practices, some water penetration will occur. This is where flashing helps. The function of flashing is to collect and divert any moisture penetrating the wall or sill. Fortifiber's Moistop® Brick Flashing is a flexible flashing membrane that meets the demands of masonry wall flashing.

Where should flashings be installed in or on a masonry wall?

Flashing must be located beneath the first course of masonry above the finished ground level above the foundation wall or slab and at other points of support, including structural floors, shelf angles, and lintels when masonry veneers are designed per Section R703.

What is flashing in siding?

Flashing is a type of waterproofing that protects transition points around doors, windows and different materials to keep water from penetrating to the wall behind the installation. Flashing between brick and siding is a relatively similar process on all types of brick to siding transitions, although there may be slight variations based on ...

Can you use rubber flashing on aluminum?

Most of the time, you can use the rubber/plastic flashing. Aluminum metal flashing installs the same way, but you will have to cut the pieces to fit with a miter saw and metal cutting blade, and then silicone and possibly nail them into place, depending on the needs of the flashing manufacturer.

Do you need flashing when siding to brick?

Many homes have a transition point somewhere up the wall where brick gives way to some type of siding, whether it's aluminum panels or cedar shingles. In all cases where there is this type of transition, you must use flashing when going from siding to brick.

Do you need flashing on a brick wall?

Install the flashing before you finish the top of the brick wall, as the flashing must go behind the siding as well as behind and under the top row of bricks that angle outward to cover the top edge with a drip-angle ledge. Mount it on top of any waterproofing layers that have been installed to protect the wall of the home.

Step 1

Choose the appropriate flashing size. Usually 8-inch flashing will work, but any size will work well.

Step 2

Install base flashing under shingles or over metal roofing material. If the roof runs flat up against the brick wall, you must install the roof side of the flashing either under the last layer of shingles or over the roof material if it is metal. Follow the photo for illustrated instructions.

Step 3

Flash angled roofs in the step method, which requires shorter flashing lengths of 6 inches. If the roof runs at an angle to the brick wall, then you must step the flashing as described in the photo. Make sure that you begin at the bottom of the angle and work up.

Step 4

Caulk any overlapping seams where the flashing meets or where any nail heads might be exposed.

Step 5

Chalk a straight line about 2 inches above the back of the base flashing. Using the circular saw and masonry blade cut a slot about 1.5 inches into the brick so that the overlapping flashing or counter flashing will slide into the slot. Caulk the slot after the flashing has been installed.

What is brick ledger flashing?

Brick ledger flashing covers the ledger and prevents water from touching it just like flashing under siding; however, the process for installing it is a little different. Flashing installed over ledger board on brick.

Can you install brick flashing over ledger board?

Like ledger flashing, installing brick flashing is not difficult to do and will extend the life of your front porch or deck. Water and ledgers don't mix and that is why most fail. To prevent wood rot it is important to install flashing over your ledger board properly.

Can you attach a ledger board to a brick wall?

CAUTION: You must never attach a ledger board to the brick veneer on a home. There is a space between the brick veneer and the sheathing of your home. Ledger boards must be securely fastened to your home's framing.

Complete the Masonry, Then the Roofing

At this point in the process, it usually makes sense to complete the masonry work before installing roofing and step flashing. This minimizes damage to the roof and makes it easier to work with staging. To make the wall watertight, make sure the housewrap overlaps all of the metal and membrane against the wall sheathing.

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Dan Morrison is editor-in-chief at ProTradeCraft.com . Sal Alfano is Pro Remodeler ’s director of content.

INTRODUCTION

At critical locations throughout a building, moisture that manages to penetrate a wall is collected and diverted to the outside by means of flashing. The type of flashing and its installation may vary depending upon exposure conditions, opening types, locations and wall types.

CAVITY WALLS

For cavity walls, as illustrated in Figure 1, the cavity typically ranges from a minimum of 2 in. to a maximum of 4 ½ in. (25 to 114 mm) wide, with a minimum of a 1 in. (25 mm) clear airspace if rigid insulation is placed in the cavity. Cavities wider than 4 ½ in.

SINGLE WYTHE WALLS

Flashings in single wythe walls, like cavity walls should be positioned to direct water to the exterior. This is normally accomplished using two narrower units to make up the thickness of the wall and placing flashing between them as shown in Figures 4 and 8.

FLASHINGS AT COPINGS AND CAPS

The type of flashing detail to use on low-sloped roofs will in part depend on the type of roofing membrane being used. As with any flashing detail, the materials used should result in a uniform and compatible design.

INTERIOR WALL TREATMENTS

Concrete masonry walls with an interior treatment may also utilize a through-wall flashing installation of flashings as shown in Figure 9. However, as noted in the figure, through-wall flashings generally create a bond-breaker, which reduces the structural capacity of a masonry wall.

SPLICING FLASHING

When it is necessary to splice the flashing, extra precautions are required to ensure that these discreet locations do not become sources of water penetration. Flashing should be longitudinally continuous or terminated with an end dam as shown in Figure 7.

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