We were commissioned to build a single story timber framed extension with massive slide and fold doors.

The shuttering you can see helps us keep the required width 450mm and the required depth 750mm and keeps a nice straight line and you might also spot the laser in the back ground this means the shuttering goes in level within 0.3mm tidy hey.

Here we can see the foundation with the shutters removed to show the correct width, depth and levelled in correctly.

Here we can see the first layer of blinding before the Dpm goes down we can also see the brick vents to provide ventilation for the floor

Here we can see the brickwork installed and the timber frame sitting on the sole plate.

Here we can see the 9 inch brick wall backfilled with Dpm and a blinding of sand and cement onto of a 2000gsm membrane the joists sit in hangers with Dpm behind them so stop moisture ingress.

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We were commissioned to build the porch bay extension, but ended up changing the construction method to timber frame from block and brick for a few reasons which included.

• Quicker to erect
• More installation could be installed
• Services would be easier to install
• Better grounding for the triple glazed windows
• Simplicity of build

We started by pouring the foundations but these had to be poured into a DMP because of nearby tree roots.

NOTE: If you are thinking of building and extension please be aware that any leylandii trees may need to be removed if they are within ten meters of you new build.

Then as we can see from the image below we build a cavity wall with 100mm thermalites up to damp course.

We then attached the damp course to the underside of the 180mm cls and fixed with sleeved fixings to create our sole plate.

As we can see from the image above all the construction took place without the need to expose the inside of the building unnecessarily, we also used 180mm timber so we could reach the U values with 180mm celotex.

We then constructed the timber frame with is clad with sterling board and breathable membrane this is for the windows to sit on as we can see by the image below.

We then had to wait for the windows to be built and fitted, then we could continue with the build by erecting the roof which sits on a plate at the top and a 75 mm cls on the window frame.

We then have the basic construction of the roof which was then membraned and tiled we also clad the timber frame and the sides  of the extension with hardiplank could sail cloth for the modern look, we also added a cant brick plinth with lead flashing which was not on the drawing as this looks better.

The existing windows inside were removed and the dwarf wall cut away to make the new bay inside the main front room.

We can now see the finished article apart from some tidying up and below is the inside where we were asked to install a brushed oak hardwood floor.

This project came in on time and with budget although, as always we were asked to do lots of extra work which was not on the drawing which we are always happy to do.

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