b'uestions&Answers More Questions from MRCA Members By Bob Lacosse, GAE Since my article in the Augustfrom the effects of sunlight, ice,Aggregate surfaced roof mem Question:Whenapplying 1999 issue of the Midwest Roofersnow, etc.b are recommended for built another built-up roof overe tranesanxisonanswerstoquestionsfromIncreases wind uplift resis up roofing except in the followinging built-up roofgravel, withsurfaceMRCA members, the follow- ance by adding rigiditysituations:do Ito remove a of the aggrehavell inghavebeenaskednd weight to the roofWhen roofmust be kept togate? loads several times:,\'membrane.a minimum.Answer: Standard practice is to ReducestheWhen the possibility exists thatobtain as smooth aas possurface Question:Whattemperatureloadaggregatesurfacingmaterialssible without damage to the subare the advantages ofonthefeltsandmay be bl own off the roof andstrate. Form wh removexa ple,en aggregateor gravelbitumensbydamagesensitiveorcriticaling the aggregate from ailt-up buon the top surface of areflecting the sun\'sequipment.roof, all the aggr does not have egate low-sloped built-up roofheat.Where the roof configuration willto be removed. If all the aggregate is assembly?P fire protec not permit aggregate adherenceremoved,could d existrovidesitamage the Answer: Aggregate surfacing fortion.(i.e., roof slopes more than3ing membrane.LAlloose aggregate built-up roofserves theetheroofmembraneinches per f should be removed and a assembliesIncreasesoot).smooth following functions:resistance to foot traffichailOn high-rise buildings where itsurface obtained to receive the new and Protects the felts and bitumendamage.is difficult to get the aggregate upinsu onply. lationbase to the roof. \'Twas the night before Y2K Continued from page 3 .eye,;,h.ow th:ey twinkled:,bisdmiples,fo,wmerry, His ffis midpighta:pproach thogh,s~o:n b:ecatn.~seary. Hehad ahrnadUttJ:ef4qfil\'.r(4:altttl:ebroirn:ddly, vi:ros Audasa~k full oftihat ~\'Vered. llke jelly. He wascliuhhya:lldphJ.~p, perpetuallj gl\'innJp.g. FOR ASYSTEM THAT CANI Iaugheei when l sim him, though my hard-iidvespin~ ADHERE DIRECTLY TO MOST ANY~- ;sto}lped. SUBSTRATE WITH AN EXPANDINGAoffJf\';and a twist of hishead wir,ikhis ADHESIVE,CHOOSESoon gave me to know n,-e-w feell~of FLEECEBACK ADHERED, adread. SYSTEMS FRDM CARLISLEspoke ri.ot ahut went sttl!ightqlus work. NeW!/l:.d.tHeeh~edthe clocks, thenwitha jetk. ;3.l[tun:1.ed. With.;i:twitch0:!\'$nose; an-d a qtlick little wrnik M .m.moo~&omm.ysyste too-n the blink.onlin,e. Alltl\'ihig\'$electronie soon wept . e0-lks Hezo11med!t!th nen HeCal:!sedst;1e:b a dis:rupt:fon~co:idd this be a sign? The:a I heardmmexclaim with a loud heJtt.ycr.y, "Happy Y2I{ to1ll,kiss yourgoodh)ref\'\' P:C SINGLE-PLY SOLUTION YOUR 800-4-SYNTECCartisle SynTac IncorporatedAuthotUruU;iQwrt www.carlisle-syntec.com 12'