MyMason's Case Studies

 Fireplace Case Studies

    Nakkertok Fireplace Surrounds

    Two-Ton Chimney Supported, Fireplace Rebuild

    Fireplace Surround - Wood Burning Insert Installed

    Fireplace Fire Brick Replacement

    Fireplace Surround - Natural Stone

    Electric, Natural Stone Fireplace

    Fireplace Hearth Replacement

    Stone Fireplace

    Cultured Stone Fireplace & New Framing

    Cultured Stone Fireplace Surround

    TV Mounted on Stone Fireplace

    Restructuring Fireplace: Wood to Gas

    Drywall to Stone Fireplace

    3-sided fireplace: Cultured Stone

    Fireplace Removal, Damper Removal

 Chimneys and Brickwork Case Studies

    Chimney Repair

    Chimney Repair, Articulated Boom

    Custom Scaffold, Chimney Repair

    Lower-Chimney's Removal, Wall Restructuring

    Chimney Flue Replacement

    Concrete Chimney Cap as per Building Code

    Chimney - Sloped Side, Repair

    Chimney - Wobbly Chimney

    Brick Pillar

    Brick Garage Pillar Repair

    Window's Lintel Installation

    Brick Sill Creates Wall Damage

    Brick-to-Stone Window Sill Replacement

    Brick Retaining Wall Rebuild

 Stone Work Case Studies

    Stone Wall Rebuild

    Granite Resurfacing of Concrete Stairs

    Stone Step Rebuild

    Stone Stair Rebuild - in Winter

    Stone replaces Brick Door Sill

    Stone Retaining Wall Rebuild

    Dry-Stack Retaining Wall Rebuild

    Dry-Stack Stone Retaining Wall

    Flagstone Patio Rebuild, Expansion

    FlagStone Step Repair

    Stone Replacement

    New Interlocking Stone Walkway

    Re-setting Interlocking Walkway

    Tile Installation

 Algonquin College/MyMason Case Studies

    Cold Weather Masonry Rules

    3 New Cases Studies in 2015

    Salt and Concrete Testing

    Concrete Curing Stress Tests

    Concrete and Rebar Stress Tests

 Parging Case Studies

    Parging, Cement Board

    Parging Examples & Techniques

 Concrete Case Studies

    Broken Concrete Step

    Basement Window, Concrete Cut

    Basement Window, Concrete cut-out

    Concrete Walkway, Landing

    Concrete Stairs and Landing

    Concrete Stairs and Landing

    Concrete Countertop




    Case Study:  2 Fireplace Walls

        Before for the two


The Plan:
    Lift and reinforce the floor under the walls,
    Remove the metal walls, reinforce behind them,
    Add lintels to spread the weight,
    Reinstall the metal walls,
    Build the masonry walls, using ties to the metal walls.

Cutting open the floor
We've removed one metal wall from the front two-sided fireplace, and cut open the floor to reinforce the floor. You can see gravel and plastic sheeting under the wood.

Reinforcing the Floor.
Using treated lumber we sistered the inside and outside joists, cross-braced, added a new joist in the middle, and added shims, brackets and structural-strength screws.
A new piece of plywood was used to replace the top.

Second Wall's Floor
With the metal off both walls, and one half of the floor finished, we're about to start the second floor section.

We've noted the electrical lines behind the walls so we can avoid them as we reinforce the walls.

Back Fireplace's Floor Open
There is a clear cavity to reinforce for this second fireplace.


Floor Reinforced, Back Fireplace
Cross bracing, sistered joists, structural screws, galvanized framing brackets, this section as shown is just partly done.
Building Walls, Building Friendships
Mike G., a ski patroller at Nakkertok who volunteered to help, is shown here building a wall frame to put behind the metal wall, while getting to know Yoshi.



Installing the Framing
Still using structural screws, these framed supports are attached to the wall.













Framed, Metal Wall Up, Lintel In.
The reddish-coloured steel lintel sticks out at the bottom of the wall, on which the stone will be laid, to spread the weight evenly across the width.

The metal wall has screws attaching it to the new framing behind it.

Lintel, Metal, Framing, Front Fireplace
Here you can see the reddish steel lintel, with its riser about to be tucked behind the metal wall.
Arriscraft Masonry Products Donated to Nakkertok
The stone being used here is made by Arriscraft and was kindly donated to Nakkertok, with my thanks to their local rep, Steve Lecelle.

The beauty of this stone is it looks the same inside as outside, so you can break it to any length, chip a piece off, and it still looks like stone. There is no cement inside, no paint outside.

Brick Ties on Every Stone
Pre-bent, stainless steel brick ties, set in the mortar of joints, anchor every stone into a framing stud behind the metal wall.
Mike, Nakkertok ski patroller, sets mortar and stone while observing the principles of stone setting.

A Wall Nearing Completion
John, the mason behind MyMason who initiated this project, also a Nakkertok ski patroller, completes the wall, and dresses the joints.
Steve Lecelle from Arriscraft, the donor of the stone, displays the qualities of the product as he chips it to fit, and to expose slightly darker elements below the surface.
Steve Lecelle from Arriscraft, Mike G., Nakkertok ski patroller, volunteers in this project, stand in front of the walls they've been building.

My thanks to both of them for great workmanship and enjoyable company.

Wide Joints, Front Fireplace.
Demonstrating a finish with wide joints flusher to the surface of the stone, the front fireplace is done.

Arriscraft also makes tumbled stones without the squared edges.

Recessed Joints, Done!
This fireplace shows the effect of recessed joints, well suited to these squared stones.

With thanks to Nakkertok's Ken Lindfors who moved the stone we'll use on the next project.


This page last modified: May 23 2010