Ask an Expert Q A Q A by nyut545e2

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									 From the

                                                                                 Q      How do you properly
                                                                                        Ho                             fungi, use a mild solution and a

 LOUISIANA                                                                              re
                                                                                        remove vegetation from
                                                                                        th
                                                                                        the mortar on the outside
                                                                                                                       soft brush to remove the growth.
                                                                                                                       Try to solve the water issue that is
 State Historic Preservation Office                                                      of a house?                    causing the bricks to stay damp.

Office of Cultural Development,                                                                                         Masonry Cleaning:
                                                                                         Ferns that grow in the old,
                                                                                         Fe
Department of Culture, Recreation and Tourism
                                                                                 A       cured joints of masonry are
                                                                                         cu
                                                                                         attracted to the limestone
                                                                                         at
                                                                                 in your mortar. However, they do
                                                                                                                         Overview of masonry cleaning:
                                                                                                                       http://www.nps.gov/history/hps/tps/
                                                                                                                       briefs/brief01.htm
                                                                                 not like newly repointed lime-          ฀For bio-degradable cleaner: http://

Ask an Expert                                                                    based mortar as the mix is too hot
                                                                                 for their taste. Algae, moss and
                                                                                 fungi grow because there is a water
                                                                                                                       www.cathedralstone.com/
                                                                                                                              ____________________
                                                                                                                       Tracy Nelson is the director of the
By Tracy Nelson                                                                  source that keeps the brick damp.     Historic Building Recovery Grant
                                                                                 To stop any of these biological       Program under the Louisiana
                                                                                 growths you need to make the          State Historic Preservation

Q      My house is raised about
       si
       six feet and the floors are
       wo
       wood planks. In rooms
                                         to help with moisture issues. The
                                         third option is to insulate from
                                         underneath. This can be tricky
                                                                                 conditions inhospitable. You can
                                                                                 use bleach (a very mild solution),
                                                                                 peroxides (be very careful to
                                                                                                                       Office. She has a Masters
                                                                                                                       in Sustainable Design from
                                                                                                                       Cambridge University, England,
where we have added carpeting
wh                                       to get right. For your house, use       match the product with your           and is a graduate in Historic
we don’t have temperature                rigid insulation between the floor       masonry type) or a biodegradable      Preservation from Roger Williams
control problems but most of the         joists. In this option, the two         cleaner (best option). Power          University in Rhode Island. After
house is the bare wood flooring           most important strategies are to        washing is not recommended            years of hands-on experience in
(with occasional filling missing          leave an air space between your         due to the potential for damage       the field, she recently purchased
between the old planks). Should          floorboards and the insulation that      to the masonry as well as the         her own 100-year-old home
we use spray foam insulation             will increase your overall R-value,     introduction of even more water       in New Orleans’ Holy Cross
                                         which is the construction industry      to the problem area. For ferns,       National Register District. She
underneath or another type? The
                                         term for measuring thermal              gently remove by hand and either      will be answering your questions
house was built in 1870.
                                         resistance, (install half way up        repoint the joints if needed or       each month, so please contact
                                         the floor joist), and make sure          put a mild solution on the mortar     mfitzpatrick@prcno.org and your
        Wi
        With the cold weather

A
ha l
        upon us this is a concern
        up
        fo
        for many people. As you
have learned, wood has a low
                                         there are no air gaps around the
                                         insulation. With your house being
                                         raised six feet you will be able to
                                                                                 bed surface. For algae, moss or       queries will be forwarded.


                                         monitor that a good job is done
insulation value and can cause
                                         by your contractor. Make sure you
your floorboards to feel cold from
                                         inspect the work before the final
the air moving under your house.
                                         payment is made. As for spray
There are three options for you to
                                         foam, you should not use it.
improve your situation. You can
remove your wood floorboards,
lay a subfloor and re-lay the             Insulation:
original hardwood planks. This             Overview of energy savings:
can be expensive and requires an         http://www.nps.gov/history/hps/tps/
expert of old houses. Second, you        briefs/brief03.htm
can close in between your piers,
which will stop the movement               Energy-saving tips: http://
of cold air under the house. If          www.crt.state.la.us/hp/grants/
you go this route, make sure your        hbrgp/info_for_owners/
winter solution can be removed           Oct2009PIPLowCostNoCost.pdf
or opened up during the warm,
                                           Insulating Historic Houses: http://
wet months when you want the
                                         www.crt.state.la.us/hp/grants/hbrgp/
air movement under your house
                                         info_for_owners.aspx


      For more information about weatherizing your old home, attend the
      PRC’s Homebuyers Workshop on Tuesday, Nov. 9 from 6 p.m. to
      7:30 p.m. at the PRC, 923 Tchoupitoulas St. Learn how to make your
      historic home ready for the winter months. Tracy Nelson, director
      of the Historic Building Recovery Grant Program, will present on
      storm window options. Bill Robinson with Train2Build will present
      on reducing those cold drafts, proper insulation for older homes and
      weatherizing wood windows. Both presenters will answer questions
      from the audience. “Weatherizing Your Old Home” is underwritten by
      Capital One. For more information call 504.636.3399 or visit www.
      prcno.org.                                                                                                          ฀฀
                                                                                  St. Francisville Main Street & West Feliciana Parish Tourist Commisssion

  ฀                                                                                                                                            www.prcno.org

								
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