caulk of the walk

We’ve been having pretty warm weather this week so I decided to finally replace the caulk around the back patio. It has been degrading steadily over the years (I’m sure it was last replaced at least a decade before we moved in) and there were some areas that were more gap than not.

patio caulk before replacement

You can see that there have been many reapplications over the years, and the prior handyfolks did not do a very good job with scraping out the old caulk prior to reapplying. Bad job, prior people! I expected better. (Well not really. We’ve lived in this house long enough to have discovered that you did not take a lot of pride in your DIY projects. Still. Annoying.)

patio caulk before replacement

I cannot imagine and don’t even want to think about how many roly-poly bugs have been crawling in and out of these gaps. *shudder*

I looked around online, took the advice of This Old House and other handy sites, and grabbed a putty knife for some serious scraping. Most of the caulk came up pretty well, without a ton of effort. Some of the older remnants of past applications, though, were impossible to even budge, so I decided that they could stay. I cleaned it all to the best of my ability and figured – if I can’t budge it with a putty knife, then it’s probably not going anywhere due to weather.

scraping out old caulk

In some of the areas, I was able to pull out large pieces in a very satisfying way. For people like me, this is like sanctioned scab-picking with no ill after effects!

pulled out old caulk

Just look at that yucky debris on the back of the caulk! And again, note the crummy installation job the last person did. It’s like they WANTED it to look gross. Sheesh.

At this point I got really into the task and neglected to take many pics – imagine me scootching around the perimeter of the patio with the putty knife, a dry paint brush, and a shop vac. It took a few hours, during which I listened to the dulcet tones of Mr. Stephen Fry (how is he not a SIR already?) narrating Harry Potter. (Yes, I have listened to these books so many times I know them practically by heart. So what.)

Then once the alarmingly-large-in-some-places gap was cleared of all debris and dirt, I inserted backing rod. Which, contrary to its name is not a rod at all but is just a tube of foam. I got the largest diameter available at our local Home Despot, 5/8″, and I still had to double and even triple up in some areas.

inserting backing rod

Here you can see the backing rod inserted and waiting for fresh caulk. The black layer is the Caulk That Shall Never Be Moved, at least by me.

inserting backing rod

And here we have new caulk atop the backing rod. Hooray! This stuff is a lot gloopier than I expected – it’s more liquidy than the caulk I’ve used in other applications, I assume because it’s specifically made for concrete and masonry and self-levels. Still, I managed not to make a big mess out of it. Mostly.

filled in with new caulk

It’s not as 100% neat and tidy as I’d like, but I think it came out decently. And should, at the very least, keep the roly-polys on their own turf.


2 thoughts on “caulk of the walk

  1. I’m so glad you posted this! We need to do this on our driveway.

    • My pleasure! Additional item: from what I read online, it is probably worth it to pay a little more for the type of caulk I used. There are other kinds that cost about half as much but apparently they do not last very long – at least according to the intarwebs. 🙂

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