Month: March 2016

Basement Front Window and Back Door

With the floor in, the first order of business is to close up the basement. I put in most of the new basement windows a few months ago, but we couldn’t put in the door until the slab was in, and we left the front window open so that it could be used as a makeshift door during the work. I installed the buck for the front window first. It was a rare case where I could put the box together first and then put it into place whole, instead of assembling in place. The issue with the front window is the outermost wythe of bricks is a smaller opening than the inner two, leaving a gap to either side of the window.

I got the buck into place and secured it with Tapcon screws. I’ve learned a trick with Tapcons (at least when it comes to brick). I use my rotary hammer to drill the holes using an SDS bit because it’s much faster than my regular drill, but then I circle back with the regular drill and the drill bit that comes with the screws because it does a better job of removing the dust in the holes, so the screws will go all the way in. I’ve actually sheared off screws trying to force them into holes that have brick dust. I also use my cordless drill with a spade bit to drill about a half-inch into the buck so that the head of the screw is counter-sunk, and I use the impact driver to actually put in the screw, so I wind up with four power tools arrayed around me, but it gets the job done.

Footing repair

Footing repair

I rebuilt the bricks around the back doorway when I was working on the side windows, but my masonry skills aren’t so hot and it wasn’t very even. I used the laser level with a vertical line pointing toward the house to cast exactly on the brick that needed to be removed and used an angle grinder with a masonry disc to straighten it out. I did this grinding a few weeks ago before the new floor was poured because the grinder throws a lot of dust that we didn’t want all over our new floor before we’ve stained and sealed it. Once the floor was in I needed to address the footer area below the bricks, because we removed the original stone door sill and the opening was wider at the bottom. I used mortar to fill the gaps at the bottom and let it set up overnight. I used the leftover mortar to fill the gaps on the sides of the front window buck.

With the doorway (mostly) even, I cut pressured treated 2×6 boards to build a buck for the top and sides, with sill gasket behind the sides. I used a router to cut dados from the side pieces at the height of the top of the door frame, since the doorway is a bit taller than the door. The left side fit great, but the right side had some sizable gaps behind the buck. I thought it would still work and screwed everything in place, but when I went to test fit the door I realized I was off by about a quarter-inch. I took the right side buck back off, and rather than grind the brick I planed the back of the buck so that it contoured to the bricks. This achieved the same effect and I was able to get the door installed.

There was still the matter of the rectangle above the door. Our plan is to cover the buck with PVC trim, and have a light fixture above the door. I needed a solid base to attach an electrical box, but it needed to be flush with the buck so that the trim would look right. I screwed some scrap 2x6s into the either side of the buck, recessed to accommodate the plywood. I used leftover pressure treated ¾” plywood from the first floor windows. With a little bit of adjustment I got it attached and screwed into place.

As usual, I still need to go around and seal with backer rod, caulk and spray foam, and I still need to get the deadbolt installed (once I re-key it). We’re planning to replace the satin nickel handle and deadbolt at some point with oil-rubbed bronze, but that can wait. These locks are ultimately destined for the garage (which we don’t have yet). This summer, once the PVC has dried out, I plan to go around and install PVC trim on the bucks of the windows and doors. For the first time since we bought our house, nothing is boarded up and we have proper windows and doors everywhere.

Basement Floor Pour

We have a basement floor! Mario and his crew came out early yesterday morning and by 8:30 the concrete truck had arrived. In no time they’d poured the entire pad and screeded (leveled it out).At that point the rest of Mario’s crew left, but he stayed for the rest of the day carefully hand troweling the surface to a burnished finish. The pressure gauge on the radiant PEX tubing never wavered, so we’re confident that nothing was damaged during the pour.

Initial screed

Initial screed

There was one minor issue, in that Mario didn’t want to leave the J bolts I’d carefully positioned during the pour because he couldn’t smooth the finish with them in the way. I explained that I didn’t want to drill or nail into the finished concrete for fear of hitting the PEX tubing. Ultimately we left some of the J bolts in position and pulled some of the others. I took a bunch of measurements and photos to help me position new anchor bolts in the finished slab, but I’m not thrilled about the nerve-wracking possibility of hitting a tube and losing a whole loop of the radiant heat.

Finished floor

Finished floor

This weekend I plan to install the last of the basement windows and the back door. I’ve installed the window buck this past weekend to ensure I wasn’t going to be making any more dust. The next project is to stain and seal the concrete once it’s cured. I’ve been doing research on the specific products and techniques we’ll be using for that. I think with the finish that Mario put on the floor, it’s going to look really nice with the stain and seal.

Troweled finish

Troweled finish

This feels like a really important milestone. We started breaking up the concrete of the old floor over a year ago and never imagined it would take so long to get one back. We’ve gained close to a foot of headroom in the basement, a critical difference that makes it a much more usable space. In addition we’ve got the rough drainage in place for our basement bathroom and utility sink, our new water main and sewer, and an interior weeping system that at this point really needs to be hooked up, since the sump basin has almost completely filled with water! With the new windows, the new back steps, the painted ceiling and beam, the tuckpointed brick walls and the all new electrical outlets and lights, it’s a night and day difference from where it was. While I really expected to be at this point in October, I’m happy that we’re finally here now and looking forward to the steps ahead.

Basement Floor Prep – Plastic, Mesh, and PEX

As planned, Mario (our concrete mason) came out on Monday of last week and put in the plastic vapor barrier and the wire mesh on top of the foam insulation. Over the weekend I installed “J” bolts (they’re shaped like J’s) where our interior walls will go, so we don’t have to drill or nail the new concrete slab. I cut short pieces of steel rod and stuck them into the foam and then wire-tied the J bolts to them to keep them positioned and upright.

Basement PEX tubing

Basement PEX tubing

Today Lester, our radiant heating contractor, came out and installed the PEX tubing that will eventually allow hot water from the boiler to keep our concrete slab nice and warm and heat the whole basement. Once the tubing loops were run and zip tied to the mesh, he pumped compressed air in to 70 psi as a pressure test to ensure the loops are air (and water) tight. They’ll stay pressurized during the concrete pour and cure to make sure they don’t get squeezed anywhere. He gave me a list of warnings to pass on to Mario and his guys when they’re pouring the concrete: when they’re using a concrete spreader, don’t hit the tubing! When they tip up a wheel barrow, don’t hit the tubing! When they’re running wheel barrows back and forth, lay down some half-inch plywood so they don’t hit the tubing! I sensed a trend.

Also basement PEX tubing

Also basement PEX tubing

Mario is planning to pour the floor on Thursday, and I’ll be there making sure that Lester’s instructions are followed. If anything happens to the tubing during the pour and it leaks, our whole radiant-heating plans will crumble. The only choice would be to tear up the whole brand new concrete slab and start over, or switch to hot water forced air in the basement, and with the lack of head room I don’t want to run ducting!

Basement Ceiling Painting

We’re planning to live in the basement while we finish the other two main floors of the house at the same time. Eventually we plan to put insulation between the joists and install a drop ceiling in the basement. We also plan to insulate and drywall the exterior walls. However, because we know there will be ongoing work to run electrical, plumbing, and HVAC to the other floors, plus we’re putting in a couple of temporary walls for bedrooms, we can’t really put that in yet. At the same time, we don’t want to have the dark exposed joists and subfloor for a ceiling while we’re living in the basement. The solution is to paint the joists and the underside of the subfloor. There are other reasons to do this as well. We used a sealing primer that is mold and mildew resistant, and we used a flame retardant additive that gives it a Class A fire rating. If the paint is exposed to fire, it will char and create a protective barrier that prevents the wood from catching on fire.

Sarah painting

Sarah painting

Because we’re planning to stain and seal the concrete, we wanted to do the painting before the floor was poured. The paint sprayer has a way of coating everything in a mist of paint that wouldn’t be fun to remove and it’s a large space to put down drop cloths. It was a good thing we did because the flame retardant makes the paint thinner than usual, and when we started spraying the paint dripped off the rough sawn lumber rather than soaking in. We discovered that a roller works a lot better than the sprayer to get the paint worked into the wood, but even so it was going to take more than one coat and the roller was way too slow.

We went back to using the paint sprayer, but in light passes. Even so, it went through five gallon buckets of paint fast. It took three coats to get to an acceptable level, and we went through fifteen gallons of paint in the process. After all of that, there are still places where the dark wood peeks through and other spots where the wood stained the paint yellow. Ultimately, it’s a basement. Nearly all of this will be covered up by the drop ceiling when we eventually finish it, and it’s a big improvement over how it looked before.

 

Basement Floor Prep – Stone and Insulation

Mario, our concrete mason, came out on Saturday and put down the stone that makes up the bottom layer of our new basement floor. I had hoped that he would also install the layer of rigid foam insulation that makes up the next layer, but apparently that’s not in his menu of services, so I was on the hook to do it myself. More than that, he wanted to come back on Monday to put down the plastic and the mesh, so I needed to get it all installed on Sunday. My friend Dean and his dad, Hector, once again offered to help.

Insulation delivery

Insulation delivery

The first challenge was getting the insulation. We’re using 4′ x 8′ panels of 2″ thick XPS (extruded polystyrene) foam, which are commonly sold in different densities. The higher density foam is better for under concrete because it doesn’t compress as much. Unfortunately it’s not stocked in as many places and I was buying 30 panels. I placed an order Saturday morning at a Home Depot that had “99+” in stock. By late Saturday afternoon the order still wasn’t ready, so I called them. After being on hold for 15 minutes I was told they “couldn’t find it” and apparently had zero in stock. There was only one other Home Depot near me that had enough in stock, so I switched the order to them. They had it ready by 6:30. Unfortunately they didn’t have a truck available, so I wound up renting a truck from a Menards that was nearby (they didn’t carry the foam). I went to Menards and got the truck, drove to Home Depot, manhandled the five-foot-tall stack of foam onto the truck, drove the truck home and dropped off the foam in the back yard, drove back to Menards to return the truck, and finally drove back home.

Sunday morning came earlier than expected (due to the Daylight Savings time change) and Dean and Hector showed up. We started at the front of the basement and worked toward the back, using the hand tamper and a rake to even out the stone base in places. The concrete curb around the footing and the column footings have rough edges that we couldn’t get the foam completely flush with, but we worked around them as well as we could. The bigger challenge was the plumbing. Because the plumbing in the basement drains to an ejector pit, the pipes aren’t particularly deep. That meant in addition to cutting holes for the pipes themselves, we had to allow for horizontal pipes and fittings as well, not to mention the sump basin and ejector pit. Overall the process went smoothly and after several hours we had everything installed. I did some foam sculpting to cover up the bathroom plumbing group and I’m pretty pleased with the end result. We were frugal enough with the foam panels that I have seven left over to return. Since they cost me $32.50 each, I’m happy about that.

Insulation installed

Insulation installed

Mario is back today to put down the plastic and mesh, and then Lester (our radiant contractor) will be out next week to attach the PEX tubing. Mario should be able to pour shortly thereafter. We’re still working on the painting and prep for the front window and back door. I hope to have posts about those projects shortly. A big thanks go out to Dean and Hector for all their help!