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ABOUT > PAGESCODE > DEFECTS > DEFECTS > 750

NGS WEATHER PROTECTION

NGS WEATHER PROTECTION: DEFECT ANALYSIS
NGS WEATHER PROTECTION: See Also 

NGS WEATHER PROTECTION
DEFECT ANALYSIS:


Mould on external timber weatherboarding porch soffit
Provided with 5 photographs of new house with mould on external timber weatherboarded soffit
BrianSpecMan provided comment 


Visual inspection suggests:


Analysis suggestes:

No.2, No.3, No.4, No.5

No.2

No.3

No.4

No.5 


Lessons learned (by me at least): 

Design for current and future weather patterns

Follow traditional rules (tried, tested and successful)


Failure analysis



© NGS BrianSpecMan aka Brian Murphy
30th January 2013 - 18th November 2013

NGS WEATHER PROTECTION
Images:

WingH21No1.png

No.1 H21 weatherboarded soffit with mould


WingH21No2LR.png

No.2 Porch roof and saturated end wall under roof


WingH21No3LR.png

No.3 Saturated wall at high level, ground level dpc is working, threshold allow rainwater splash to bridge DPC, is there a vertical DPC in wall at sides of projecting bays?


WingH21No4LR.png

No.4 Flush coping with no drip results in saturated wall, tap spiraling water saturates wall and has no frost protection


WingH21No5LR.png

No.5 Saturated walls at high level, ground level weatherboarding splashes from mud and surface capillary action draws water up face, highest splashes where roof is lowest


 

No.6

 

No.7 


© BrianSpecMan aka Brian Murphy
30th January 2013 - 18th November 2013

NGS WEATHER PROTECTION
See Also:


NGS CHECKLIST


NGS PATTERNS


NGS SPECIFICATION


NGS DURABILITY & WHOLE LIFE COSTING


NGS LECTURES


NGS CPD


© BrianSpecMan aka Brian Murphy
30th January 2013 -  3rd August 2013


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