[MassHistPres] Chimney & roof

[Sara Molyneaux]

We have used copper flashing at intervals of every several feet in a shake roof, and it resists mildew and moss nicely, ages to a nice patina too. Only an inch or so of copper is seen at each course of flashing.

Sara
  ----- Original Message ----- 
  From: Garrett Laws 
  To: Sean Maher 
  Cc: masshistpres at cs.umb.edu 
  Sent: Wednesday, June 03, 2009 4:19 PM
  Subject: Re: [MassHistPres] Chimney & roof


  I'm not really in favor of intentionally putting a lead wash on roofs...

  The shingles in this picture are in very good shape under the chimney and not that horrible on the rest of the roof, although there do appear to be a few missing and badly decaying.

  Garrett


  On Thu, May 28, 2009 at 2:40 PM, Sean Maher <mseanboy73 at hotmail.com> wrote:

    Hello,

    One thing I have seen that was beneficial to the longevity of a shingle roof was lead flashing.  The image attached shows the rough condition of the shingles without it, as compared to the shingles below the chimney.  The shingles are all the same age.  The lead prevents the growth of mold and fungus, both of which trap water and contribute to the decay.  

    Sean


----------------------------------------------------------------------------
    From: htavern at townofwilmingtonma.com
    To: masshistpres at cs.umb.edu
    Date: Thu, 28 May 2009 14:10:16 -0400
    Subject: [MassHistPres] Chimney & roof


    Hello -

    I am trying to find the best consultants to bring in to assess the condition of the roof and the chimney in a late 18th century building (Wilmington Town  Museum).  I have looked at the PreservationMass consultants directory and cannot find these specialties, although I know they must exist.  

    The wood shake roof was installed about 20 years ago.  Although the roof is not giving me any problems at this time, it looks like its in rough shape (moss, curling) and I would like to get a professional analysis of 1. how much longer the roof will last; and 2. what could be done to extend the life of the existing roof.  As for the chimney - I don't need to make it a functioning chimney, but I am concerned that it could be leaking and it is definately deteriorating.  I had a local chimney contractor look at it, but he didn't feel qualified to work with such an old building.  He had no one in particular to recommend to me.

    Any suggestions would be gratefully appreciated!

    Terry McDermott
    Curator
    Wilmington Town Museum at the
    Col. Joshua Harnden Tavern, c.1770
    430 Salem Street
    Wilmington, MA  01887
    978.658.5475
    htavern at town.wilmington.ma.us
    http://www.town.wilmington.ma.us/old/hist.htm
     
    The Wilmington Historical Commission can also be reached at the above addresses and phone number.


     

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  -- 
  Cheers,
  Garrett

  Garrett Laws, Manager
  The Copper & Slate Company
  Fine Roofing and Exterior Finish Carpentry
  238A Calvary Street
  Waltham, MA 02453
  Ph: (781) 893-1916
  Fax: (781) 893-2041

  Copperandslate at Gmail.com or 
  GLaws at hbuilders.net 



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