Building Homes or Extensions/wet pressure treated wood


I have left over wet pressure treated wood 2x4's....I would like to use them in my attic as collar ties to strengthen the roof live in penna....snow, etc.

if I use the wet wood will expansion and contraction cause problems in the roof as the wood dries, and cause damage.  using 3.5 inch nails...three per side in a triangle pattern per angle cut to roof slope per internet....

or should I let the wood dry out really well.????

Hi bob, if it's sopping wet I'd let it dry out a bit but it doesn't have to be bone dry.  A little moisture will help keep it from splitting when you drive nails into it.  If you are just adding collar ties to an existing roof system that has survived for several years without them what's the hurry? If you stack the wood with spacers between it will dry out pretty quickly.  Do it in a week or two.  If you absolutely have to so it right now? Go ahead.

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Bruce E. Johnson


I can answer any construction related question in regards to carpentry, concrete, drywall, masonry, structural elements of any type of building, residential or commercial. Interior or exterior.


Custom Commercial and residential buildings. Churches, theaters, schools and auditoriums. Most recently I am working with the Catholic Church on several design build committees. I have a website related to scheduling and project supervision. Although my expertise is more related to multimillion dollar commercial, educational and theatrical projects my generous credentials in residential and remodelling construction make me a viable source of information regarding all forms of building questions.

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