Building Decking Above Damp Course

Construction guide framing Menards deck hand rails -ev. The damp proof course is there to stop water soaking up the bricks and getting into your house if you place things against the wall which will allow the rain to splash against the wall above the dpc it can soon soak the wall and lead to damp.

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Remember that the top level of the deck on your house wall must be at least 150mm below the damp proof course to comply with Building Regulations and ensure the deck does not block any air bricks.

Building decking above damp course. Outdoor decks are often considered to be exempt from planning regulations. This is not always the case. I use the wall because its ther solid and makes one aspect of the deck easy to do.

Incidentally if you have water running of the back of the deck youve definitely got it wrong. Where a deck is to be attached to a property it should be designed so that the top level of the deck is at least 150mm below the level of the damp proof course in order to meet the current building regulations. Decking should always remain beneath the damp proof course when being attached to the property.

When theres no structural or site requirement for doing it. There are a number of specific instances where consent is required prior to building a patio terrace or deck and these are set out below. Can I Put Decking Above Damp Proof Course.

You should find that your damp course is on top of the last brick under your back door at internal floor level So check that course to see if you can identify it there This means that if you intend to run your decking to the underside of your door frame freshhold you should be inline with the damp course I would surgest setting it a brick lower. This seems to work very well. Providing you construct it well it should be strong enough to stand on its own.

The dpc exists to prevent dampness rising into a. Agree with trowlerman actually combining trowlerman and bass crushed glass and rope light in the gap might be the way to go. 21062009 Building a deck above the dpc might cause you problems in the future and that is why it is recommended that you build the deck below the DPC and not above it.

02072019 Bridge the damp course and block the air brick with groundwork for paving and youre heading for a more than a slight headache. If your decking will be against an external house wall plan to build it so it lies at least 150mm below the damp proof course and that no grates or vents are obstructed. Trapping damp in the walls results in continuously damp brickwork.

18042019 BM Top Tip. You can now use your scale plan to calculate the area of your deck in square metres simply divide the area of your deck by the area covered by one pack of decking to see how. How to build a outdoor wood deck- by yourself in just 3 days.

Situations Requiring Planning Permission effective 1 October 2008. The treatment is to waterproof the wall area from one brick below the DPM to one brick above the final patio level with a waterproof render of at least 20mm in thickness. 12042019 Theres no problem with having the decking cantilevered over the dug out area as long as the decking supports can deal with this OK.

That damp transfers to the internal plasterwork and finally blows it. Building the deck above or level with the dpc means that rain water can splash up and give you damp problems in the future. I usually make our decks free standing on piers if poss and leave a small gap of about 5-10mm.

As Sven pointed out there is a vent on your wall damp proof course level here and whilst decking allows the air to circulate under the house a hard patio would block this off and cause damp problems. Carefully cut the decking joists to size to create a square frame and lay it out with the joists sitting lengthways on their narrowest faces. What you dont want is a gap between the decking and the wall of the house thats big enough to present a hazard yet the dug out area around the house wall needs to be around 250mm wide to be effective and needs to be able to.

03032008 Nothing in your garden including decking which is up against the house should be any higher than 150mm BELOW the damp proof course. In reality this is often ignored but the level of the deck must never be higher than the damp proof course. DIY style step by step deck building.

The requirement is. 03092019 Spacing the ledger off the wall is okay. The top of the deck must stay 150mm below the damp proof course at the very least.

11072019 The section alongside the patio is around 100mm wide and at the back door where the paving comes right up to the door threshold level we have an overhang on the stone of around 50mm with coarse stone packed in the gap and the stone paving being about 5mm clear of the threshold. Here is an example of a large composite deck we have just finished which was raised to accommodate the level change from the kitchen to the garden. Theres plenty of decks about that have the boards at internal floor level to achieve the outdoor room look.

When the decking is put in the installers shouldnt attach the decking directly to your property. Finished with a steel trowel to form a very smooth and bubble free surface. Do people ever build a deck above the DPC.

09042016 Can decks be installed above the damp proof course dpc of my home level with a door. You can still have your deck fixed away from the wall if you want. If your decking is going to be an extension of your property and will be attached to an outside wall it should be designed so that the top of the deck is at least 15cm below the damp course.

03062005 If the deck needs to be fixed at the dpc line I would use a 6x2 or 8x2 timber to make sure I was well clear of the dpc. 03072019 Can I put decking above damp course. Yes they do and they never seem to have.

Truth is its nearly always a bad idea to bridge the DPC or come up to render esp.

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