This Old House landscape contractor Roger Cook resets an uneven bluestone patio. (See below for a shopping list and tools.)
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Roger helped a homeowner repair an uneven stone patio. The patio stones had become uneven due to years of water freezing and thawing underneath the pavers, causing some to lift and others to sink. To fix the problem, Roger removed each of the stone pavers and reinstalled them level with each other, using string lines as guides. For added stability, Roger set each paver in a bed of wet stone dust mixed with a little portland cement. Once all of the pavers were level, Roger locked them together by sweeping polymeric sand into the joints.
Shopping List for How to Repair an Uneven Bluestone Patio:
– nylon mason’s line
– 1×3 scrap blocks
– stone dust and cement
– polymeric sand
Tools for How to Repair an Uneven Bluestone Patio:
– square-end shovel
– flat bar
– wheelbarrow
– five-gallon bucket
– pointed trowel
– rubber mallet
– push broom
– knee pads
Resources:
Bluestone pavers, cement, stone dust, and polymeric sand are available at home and landscape supply centers and masonry yards.
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Homeowners have a virtual truckload of questions for us on smaller projects, and we’re ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O’Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.
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How to Repair an Uneven Bluestone Patio | This Old House
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Is that Rich Trethewey's house and son Ross?
I wish these guys wore masks when spreading the sand
There's a lot more to doing polymeric sand. It's supposed to be packed into the joints with a vibrator. Also needs alot more water than what they did here,
I journey to because I don't know
Does the sand turn hard once you wet it? A bit like mortar
Would love some advice! I'm just a DIY and I've just laid a new patio and I've just found a lose slab!! " Not happy " not sure if the kids ran on it or what? Patio has been laid on a bed of type 1 hardcore with sharp sand and cement! It's now set but slab didn't set for whatever reason!! Do I have to break up morta bed or just lay a fresh 2MM of cement with a drop of plasticiser? Any good advice would save me growing new grey hairs.. thanks.
That accent – gotta be Boston, am I right?
Professional to the core. Nice project, Roger!
@ 1:50–2:00 the guy let's go of his side and drops it on Rogers hand. Roger has some self restraint to not yell or curse.
M v.
When Roger walked up he said I remember this job, and the home owner said how , and Roger said I'm the one who did the job. Lol
Hey guys! Love your videos. Couldn't help but notice you don't wear knee pads. Any reason for this?
Great video that will help me with my DIY repair. Can you help clarify with the type of cement used? Did you add a little water to the mix? Is it best to leave it dry? Thanks for your help. Roger That!
ghe besasc
And that's why the best way to lay the bluestone is to pour a footing then properly pour a slab, wet lay the bluestone then tuck the joints. The bluestone should last 100s of years; this is how the bluestone was installed at the Rockeffler estates back in the 1800s and they never had to have the bluestone removed and retamped… BTW Polymeric sand HELPS prevent weeds from filling the joints. It does not stop it. There will be weeds in the joints because people walk around and track dirt and mud that will eventually end up mixing with the Polymeric sand and causing weeds and moss infiltration. Weeds will never be an issue with a wet laid bluestone patio.
I like it when these guys update their technique, and share it with the rest of us. That sand looks interesting.