Case Study: Basement Window, Concrete wall cut-out and installation, jointing, parging, chimney rebuilds, masonry services in Ottawa.

Case Study 1 - Chimney Repair Case Study 2 - Concrete Countertop Case Study 3 - Parging Examples, Tools & Techniques Case Study 4 - Fireplace Brick Replacement Case Study 5 - Tile Installation Case Study 6 - Chimney Flue Replacement Case Study 7 - Broken Concrete Step Case Study 8 - Brick Sill Creates Wall Damage Case Study 9 - Brick Retaining Wall Rebuild	Case Study 10 - Basement Window, Cut-out, installation Case Study 11 - Concrete Walkway, Landing Case Study 12 - Stone Wall Rebuild Case Study 13 - Stone Step Rebuild Case Study 14 - Fireplace Surround - Cultured Stone Case Study 15 - Stone Stair Rebuild - in Winter Case Study 16 - Fireplace Surround - Natural Stone Case Study 17 - Stone Retaining Wall Rebuild Case Study 18 - Dry-Stack Stone Retaining Wall Rebuild
	Case Study 10 - Basement Window Cut-Out, Installation The Assignment: Cut a level hole for the window Install a supported Lintel.
Marking out the cut. A self-levelling laser matched the window height with other windows. Pilot holes were drilled in the corners. All of this was done under Permit.
	Window Well Excavated to the weeping tile's gravel bed. A vertical drain pipe will sit above the weeping tile. The fill around the vertical pipe includes a layer of gravel, and a thick landscaping cloth.
Cutting the hole Lined up with pilot holes and double-checked, the hole's sides are cut out. A wet saw is used. and when working from the inside, a basin made of tarps keeps the watery sludge contained, which is simply wet-vac'ed away. If the cuts can extend past the edge of the window space, then a larger coring saw can cut the block out in a single piece. Sometimes a larger coring tool can not be used.
	Removal of the concrete We use a demolition hammer to break out the concrete. The different tips for the hammer each have a useful purpose in such a job.
Window Space Open, Parged A steel lintel is installed flush with the outside wall across the top of the window, scewed in, reaching four inches beyond each side. The sides are parged with a little more than needed. When the cement is almost set it is sanded down to ensure a good fit with the window. The window is set with 4" masonry screws, pre-drilled, and caulked.
	Framing to Taping The framing is redone to fit around the window, with cripple, king and jack studs. The tar paper is replaced, the insulation installed, with 6 m plastic as a vapour barrier. All the seams and any holes are taped to seal the barrier.

This page last modified: January 5 2010