[MassHistPres] MassHistPres Digest, Vol 40, Issue 9

Thu Jun 4 18:36:29 EDT 2009

Terry, Call Judy Anderson at 781-631-1768.  She knows roofs and chimneys.

Pat

James M. "Pat" Patrick
OldTownRepair
2 Pleasant Court, Ground Floor Office
Marblehead, MA  01945-3310
781-631-5145 (P)
781-639-8024 (F)
pat at oldtownrepair.com
www.oldtownrepair.com

-----Original Message-----
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Sent: Thursday, June 04, 2009 8:26 AM
To: masshistpres at cs.umb.edu
Subject: MassHistPres Digest, Vol 40, Issue 9

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Today's Topics:

   1. Re: Rhino Shield (Marcia  Starkey)
   2. Re: Chimney & roof (Garrett Laws)
   3. Re: Chimney & roof (Sara Molyneaux)

----------------------------------------------------------------------

Message: 1
Date: Wed, 3 Jun 2009 12:13:37 -0500
From: "Marcia  Starkey" <mdstarkey at crocker.com>
Subject: Re: [MassHistPres] Rhino Shield
To: "Garrett Laws" <copperandslate at gmail.com>,	"Eric Hertfelder"
	<EHertfelder at fortadams.org>
Cc: masshistpres at cs.umb.edu
Message-ID: <270CCCA5BFCC4934B57474B3F48B3F4F at Marcia>
Content-Type: text/plain; charset="windows-1252"

Hello all,

The first prinicpal of art conservation is that any treatment must be
reversible. This might also be good guidance for historic buildings. 

Marcia Starkey, Greenfield HC 
  ----- Original Message ----- 
  From: Garrett Laws 
  To: Eric Hertfelder 
  Cc: masshistpres at cs.umb.edu 
  Sent: Monday, June 01, 2009 2:15 PM
  Subject: Re: [MassHistPres] Rhino Shield

  Here's a roofers perspective on this matter...for what it's worth.

  Wood and framing:
  You have to look at the areas where moisture WILL enter the envelope of
the structure and if you can Guarantee (yes with a capitol G) that there
won't be any moisture harbored behind the encapsulation than go for it.
Unfortunately in the real world that can be guaranteed. Windows, doors and
the human factor makes it really, really difficult to stop most moisture and
definitely not all from being absorbed be the porous material that the
encapsulation is trying to protect.

  Brick, stone and stucco:
  You might have a case here that the encapsulation can make the wall system
last longer than paint would, but the frame would still need to be monitored
somehow.

  For a real scientific answer, try searching on www.buildingscience.com/ as
they have some really amazing information on how buildings REALLY work.

  Garrett

  On Mon, Jun 1, 2009 at 2:45 PM, Eric Hertfelder
<EHertfelder at fortadams.org> wrote:

    Reviewers in historic districts in Rhode Island are contending with
proposals from homeowners to treat their houses with ?Rhino Shield? and
other applications which essentially encapsulate exterior surfaces with a
coating 10-15 times as thick as paint.   The maker suggests the coating will
last for 25 years and provides insulation as well!

    As best I can tell, these coatings are not reversible; i.e., they bond
to the surface to which they are applied and cannot be removed.

    Has anyone else dealt with this project?  Are there any historic
district commissions out there that have decided to prohibit or to permit
the use of such applications.

    Thank you.

    Eric Hertfelder

    Bristol, Rhode Island

    ******************************
    For administrative questions regarding this list, please contact
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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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Message: 2
Date: Wed, 3 Jun 2009 16:19:20 -0400
From: Garrett Laws <copperandslate at gmail.com>
Subject: Re: [MassHistPres] Chimney & roof
To: Sean Maher <mseanboy73 at hotmail.com>
Cc: masshistpres at cs.umb.edu
Message-ID:
	<3237fe6c0906031319o34c9373uc6d2c4c4b34ac4c9 at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

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.
>
>
>
>
> ******************************
> For administrative questions regarding this list, please contact
> Christopher.Skelly at state.ma.us directly.  PLEASE DO NOT "REPLY" TO THE
> WHOLE LIST.
> MassHistPres mailing list
> MassHistPres at cs.umb.edu
> http://mailman.cs.umb.edu/mailman/listinfo/masshistpres
> ********************************
>
>

-- 
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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Message: 3
Date: Thu, 4 Jun 2009 08:25:20 -0400
From: "Sara Molyneaux" <meauxmo1 at comcast.net>
Subject: Re: [MassHistPres] Chimney & roof
To: "Garrett Laws" <copperandslate at gmail.com>,	"Sean Maher"
	<mseanboy73 at hotmail.com>
Cc: masshistpres at cs.umb.edu
Message-ID: <002701c9e50f$86c77ae0$6801a8c0 at sara>
Content-Type: text/plain; charset="iso-8859-1"

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.

    ******************************
    For administrative questions regarding this list, please contact
Christopher.Skelly at state.ma.us directly.  PLEASE DO NOT "REPLY" TO THE WHOLE
LIST.
    MassHistPres mailing list
    MassHistPres at cs.umb.edu
    http://mailman.cs.umb.edu/mailman/listinfo/masshistpres
    ********************************

  -- 
  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 

----------------------------------------------------------------------------
--

  ******************************
  For administrative questions regarding this list, please contact
Christopher.Skelly at state.ma.us directly.  PLEASE DO NOT "REPLY" TO THE WHOLE
LIST.
  MassHistPres mailing list
  MassHistPres at cs.umb.edu
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