Planning the patio
Choose the
slabs or bricks you will use to build your patio to harmonise
with the bricks of your house, the eye naturally connects the two, being similar
sorts of surface. Dark colours are less reflective and therefore don't give so much
glare, which can be very strong in the full summer sun. A darker coloured slab will
also feel much warmer than a lighter one, and will retain - and radiate heat well
into the evening after the sun has disappeared.
I recall seeing a path once that someone had laid covered in white gravel, as
it was in a sunny position, on a bright sunny day it was painful to look at.
Too many contrasts and too much variety looks confusing.
Never have more than three types of paving, including
bricks or edging materials, the effect soon becomes messy if you have more.
If you want the patio to have a pattern rather than be an expanse of uniform slabs,
then consider circles or arches made of the same bricks / slabs rather than different
types or colours. Different patterns in one colour look more sophisticated than
different colours of one type of slab or brick.
A contrasting edge can look very effective, say of
block paviours (as used for drive-ways) around patio slabs with the darker colour
on the outside.
Remember that if you are replacing existing slabs, you will also need to replace
those making the path around the house at least to where it disappears around a
corner, or the effect will be lost.
Laying a patio
Whichever way you look at it, this is a heavy job and having seen lots of patios
laid by amateurs where the slabs are uneven / wobble and / or have grass and weeds
coming up between them, I'd strongly advise you to leave it to the experts unless
you are able (that's able - not confident, there's a difference)
If you do feel able to make a good job of it yourself, then get a guide book
such as those on this page, or leaflets often available free at your local builders
merchant or garden center. (It's always a comfort to be able to refer to something
in print, especially when you think you've taken a wrong turn).
A professionally laid patio will usually represent about 3 or 4 full days work,
depending on the size, an amateur laid patio can stretch out over weeks.
Remove the turf and dig down so that the soil surface is about 6 inches below
the intended level of the patio.
Level this area off reasonably accurately.
Lay a hardcore layer (limestone as used for roads or whatever is available locally
from the builders / gravel merchants) about 3-4 inches thick and compact using
a vibrating (wacca) plate, available from tool hire centers.
Lay the first line of slabs against the house (don't actually touch the house
with the slabs, but leave a gap of 2-3" that you can fill in with gravel), use
a builders line to make sure the edge is straight. Make sure the slabs are
below the level of the damp proof course
Bed slabs on a dryish mortar mixture of sharp sand and cement. Check each slab
as you lay it with a (long) spirit level that it is level with it's neighbours.
Don't walk on slabs you have just laid!
Introduce a gentle slope as you move away from the house of about an inch in
6 feet using the builders line and spirit level for reference. If you have a
3 foot spirit level for instance, use a 1/2" spacer under the end away from
the house, when it shows level - you have your 1" in 6 foot slope.
The commonest mistake and cause of a patio not being level or stable
is that the base is not prepared properly. Don't skimp on the foundation, dig down
far enough, have a thick layer of hardcore, compact it down with a mechanical vibrator
and bed the slabs on a good layer of mortar.
If you try to skimp on the foundation layer, all will be well
for a while,
but a year or so later your patio will resemble the collision of two
small tectonic plates.
More on how to lay a
patio |
Patio Slabs
Relative costs
- patios
|
Cheaper |
>>>>>>>> |
More expensive |
|
|
|
| Simple patterns |
>>>>>>>> |
Complex patterns |
| Slabs used whole |
>>>>>>>> |
Cut slabs |
|
|
|
|
|
Compressed concrete slabs |
Imitation natural stone in coloured cement |
Very realistic
man-made natural stone copies |
Natural stone |