cavity wall insulation and the use of cavity trays.

by **teamleader** » Mon Oct 06, 2008 5:29 pm

how can i ge round the problem of having to fit a cavity tray, when the whole house has cavity wall insulation! surley its just gonna fall down and fill the tray anyway? am i right in thinking 99% of wall insulation stops this any way, more so if its simular to "instafibre".
would treating the wall with a clear waterproofer help?

by **welsh brickie** » Tue Oct 07, 2008 11:42 am

use catnic boot lintols over all openings the design eliminates the use of dpc cavity trays and are fully insulated

by **teamleader** » Wed Oct 08, 2008 7:59 am

cant replace the lentol as its in the original opening of the building and the wall insulation has been in about ten years. (and cost me a loy of money, so dont want to lose or disturb it).

by **welsh brickie** » Thu Oct 09, 2008 3:22 pm

there is no way to install cavity trays unless you demolish the external brickwork above each opening
the insulation has some waterproof resistance but you could spray a clear silicone solution to the walls,it all helps

by **the specialist** » Sun Jan 11, 2009 8:01 pm

Hi,

Please could you explain why and where you are thinking of installing a cavity tray. Was in the cwi business for 20 years so hopefully i can help.

by **TheDoctor5** » Wed Jan 28, 2009 10:34 am

If you type the key words of your question into our search box to the left of the site you may find the answer is already posted or is in the DIY projects section of the website. Every post goes through a monitoring process and using the search box may speed up your answer.