Search found 17 matches

by David Lam
Tue Sep 24, 2024 12:55 am -1100
Forum: Material
Topic: Wood rot threshold for chemically-treated wood
Replies: 2
Views: 879

Re: Wood rot threshold for chemically-treated wood

Thanks Daniel
Looking forwards to the rot tool.
by David Lam
Thu Aug 29, 2024 4:01 am -1100
Forum: WUFI Plus
Topic: Adobe Flash Player
Replies: 3
Views: 1122

Re: Adobe Flash Player

Hello!
For example
https://www.wufi-wiki.com/mediawiki/ind ... .X:Results

See attached.
Thank you
by David Lam
Tue Aug 20, 2024 4:14 am -1100
Forum: WUFI Plus
Topic: Adobe Flash Player
Replies: 3
Views: 1122

Adobe Flash Player

The movies in the wufi wiki require Adobe Flash player.
Adobe no longer supports Flash player.
Is there another format we can view these movies in please?
by David Lam
Sun Aug 18, 2024 10:48 pm -1100
Forum: Material
Topic: Wood rot threshold for chemically-treated wood
Replies: 2
Views: 879

Wood rot threshold for chemically-treated wood

Dear all 20% moisture content is a typical value to use when assessing wood rot. But wood that has been protected using chemicals will presumably allow increased moisture content before the onset of rot. I can't find any information online to suggest a suitable moisture content to use when assessing...
by David Lam
Tue Mar 12, 2024 5:04 am -1100
Forum: Material
Topic: Simulating unventilated cold roof
Replies: 5
Views: 8181

Re: Simulating unventilated cold roof

Thanks Christian
by David Lam
Tue Mar 05, 2024 5:42 am -1100
Forum: Material
Topic: Simulating unventilated cold roof
Replies: 5
Views: 8181

Re: Simulating unventilated cold roof

Hi Christian
That is very helpful thank you.
However I'm looking at this sort of build-up which is not in the guidelines you have linked to.
Do you think WUFI is an appropriate tool for this? Image is from EN 5250
Figure 54 from EN 5250
Figure 54 from EN 5250
Figure 54 from EN 5250.png (102.19 KiB) Viewed 2787 times
Thank you
D
by David Lam
Wed Feb 21, 2024 5:03 am -1100
Forum: Material
Topic: Simulating unventilated cold roof
Replies: 5
Views: 8181

Re: Simulating unventilated cold roof

I've also been asked to look at a cold roof situation to determine the amount of ventilation needed.
Is there any guidance on doing this in WUFI please?
by David Lam
Fri Sep 29, 2023 2:48 am -1100
Forum: WUFI Pro
Topic: Assessing condensation in mineral wool in walls
Replies: 2
Views: 4034

Re: Assessing condensation in mineral wool in walls

Thank you Christian
by David Lam
Wed Sep 27, 2023 3:41 am -1100
Forum: WUFI Pro
Topic: Assessing condensation in mineral wool in walls
Replies: 2
Views: 4034

Assessing condensation in mineral wool in walls

Dear all We've been following this guidance on assessing moisture risk in a stone and brick wall insulated with mineral wool internally. https://wufi.de/de/wp-content/uploads/sites/9/2017.07_2_How_To_Condensation_Risk.pdf The useful guide is for a roof. The example contains no substrate, eg timber s...
by David Lam
Wed May 11, 2022 9:24 pm -1100
Forum: WUFI Pro
Topic: Drainage in a ventilated cavity
Replies: 1
Views: 3013

Drainage in a ventilated cavity

Hi all I'm attempting to model a ventilated cavity as accurately as I can. I've read the useful information in the WUFI help and here: https://wufi.de/en/service/wufi-forum/?forum=/viewtopic.php?f=32&t=1968&sid=cd83f64c66fe6d2526b84fa5708d45cf I have standard UK new building brick cavity wal...
by David Lam
Tue May 18, 2021 9:44 pm -1100
Forum: Hygrothermal Sources & Sinks
Topic: How to model a moisture sink
Replies: 2
Views: 4518

Re: How to model a moisture sink

Wonderful.
Thank you.
by David Lam
Tue May 18, 2021 7:48 am -1100
Forum: Hygrothermal Sources & Sinks
Topic: How to model a moisture sink
Replies: 2
Views: 4518

How to model a moisture sink

Hi all I had a good search in the forum and couldn't find an answer to what I thought would be simple (easy and complex right?!). I want to model a cavity drain to see the impact that a moisture sink has. Reading around it looks like I need to enter a Moisture Source with a negative value. However t...
by David Lam
Sun Aug 23, 2020 11:29 pm -1100
Forum: Climate
Topic: Meteonorm Inputs
Replies: 2
Views: 7391

Re: Meteonorm Inputs

Hi Thomas
Thank you for this in depth response and great explanation.

David.
by David Lam
Tue Aug 11, 2020 4:50 am -1100
Forum: Climate
Topic: Meteonorm Inputs
Replies: 2
Views: 7391

Meteonorm Inputs

Hi all I'm generating a climate file from Meteonorm and would like to check the appropriate inputs to use. The Modifications tab in Meteonorm allows you to input the Azimuth and Inclination for your location. I am unsure whether I should be adjusting this as WUFI also allows you to select these. I'v...
by David Lam
Sun Dec 29, 2019 11:50 pm -1100
Forum: Material
Topic: Blowerproof liquid membrane
Replies: 4
Views: 10133

Re: Blowerproof liquid membrane

Cheers Toby!