1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Wall composition of timber extension.

Discussion in 'Building' started by Suited72, 18 Mar 2021.

  1. Suited72

    Suited72

    Joined:
    15 Mar 2013
    Messages:
    43
    Thanks Received:
    3
    Location:
    Leicestershire
    Country:
    United Kingdom
    Hi, i'm building a wood constructed extension on to the existing house. Couple of questions on the wall composition - there isn't a lot of wall.

    Got a couple of concerns on the outer side of the wall.....is the air gap needed or can the void be filled with 25mm celotex? If air gap, are top vents needed and how are they generally done?
    I'm planning to have it rendered, but didnt want to run the render boards to the floor and getting stained - any suggestion of what to use to fill the gap to the floor? I know normally it would just be a stop bead, but here there will be a 50mm kick back to the brick face. (n)

    Also any other suggestions from anyone who has done something similar or knowledge of would be great. new_garden2-1.jpg wall-makeup.jpg
     
    Last edited: 18 Mar 2021
  2. Sponsored Links
  3. ^woody^

    ^woody^

    Joined:
    3 Sep 2006
    Messages:
    33,933
    Thanks Received:
    4,607
    Location:
    West Mids
    Country:
    United Kingdom
    The timber frame should have a minimum 25mm air cavity and continuously ventilated top and bottom - mesh screened strip 10mm strip. Cladding should me kept a minimum of 150mm above external finished levels, so the foundation brickwork is taken up the floor level.
     
    • Thanks Thanks x 1
  4. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page