Glass Block Windows - 5 Steps For Installation Success

<span style="background-color: transparent; color: inherit;">Like&nbsp;many&nbsp;product&nbsp;categories&nbsp;the&nbsp;installation&nbsp;options&nbsp;for&nbsp;glass&nbsp;block&nbsp;windows&nbsp;have&nbsp;grown&nbsp;proportionately&nbsp;to&nbsp;the&nbsp;expanding&nbsp;design&nbsp;options.&nbsp;Years&nbsp;ago,&nbsp;blocks&nbsp;were&nbsp;made&nbsp;in&nbsp;a&nbsp;8"&nbsp;x&nbsp;8"&nbsp;x&nbsp;4"&nbsp;size&nbsp;in&nbsp;a&nbsp;few&nbsp;patterns&nbsp;and&nbsp;put&nbsp;together&nbsp;inside&nbsp;a&nbsp;masonry&nbsp;window&nbsp;opening&nbsp;(usually&nbsp;by&nbsp;a&nbsp;skilled&nbsp;mason)&nbsp;block&nbsp;by&nbsp;block&nbsp;with&nbsp;a&nbsp;gray&nbsp;mortar&nbsp;and&nbsp;masons&nbsp;sand&nbsp;-&nbsp;not&nbsp;real&nbsp;sexy,&nbsp;but&nbsp;it&nbsp;worked.&nbsp;In&nbsp;today's&nbsp;world&nbsp;people&nbsp;want&nbsp;to&nbsp;use&nbsp;blocks&nbsp;more&nbsp;creatively&nbsp;in&nbsp;different&nbsp;types&nbsp;of&nbsp;openings&nbsp;(could&nbsp;be&nbsp;masonry,&nbsp;framed,&nbsp;steel&nbsp;openings&nbsp;etc.)&nbsp;for&nbsp;a&nbsp;wide&nbsp;variety&nbsp;of&nbsp;uses,&nbsp;and&nbsp;not&nbsp;have&nbsp;to&nbsp;rely&nbsp;strictly&nbsp;on&nbsp;a&nbsp;mason&nbsp;to&nbsp;get&nbsp;the&nbsp;job&nbsp;done.&nbsp;The&nbsp;following&nbsp;5&nbsp;installation&nbsp;steps&nbsp;can&nbsp;help&nbsp;you&nbsp;think&nbsp;through&nbsp;what's&nbsp;needed&nbsp;to&nbsp;have&nbsp;your&nbsp;block&nbsp;window&nbsp;installation&nbsp;project&nbsp;go&nbsp;smoothly.</span><span style="background-color: transparent; color: inherit;">o&nbsp;Step&nbsp;1&nbsp;-&nbsp;Ask,&nbsp;"What&nbsp;size&nbsp;is&nbsp;my&nbsp;window&nbsp;opening?"-&nbsp;The&nbsp;size&nbsp;of&nbsp;the&nbsp;opening&nbsp;is&nbsp;a&nbsp;large&nbsp;factor&nbsp;in&nbsp;the&nbsp;window&nbsp;installation&nbsp;approach.&nbsp;There&nbsp;are&nbsp;two&nbsp;basic&nbsp;ways&nbsp;to&nbsp;install&nbsp;a&nbsp;glass&nbsp;block&nbsp;window:</span><span style="background-color: transparent; color: inherit;">*&nbsp;(Option&nbsp;1)&nbsp;As&nbsp;a&nbsp;window&nbsp;panel&nbsp;alone,&nbsp;or&nbsp;as&nbsp;a&nbsp;panel&nbsp;built&nbsp;into&nbsp;a&nbsp;vinyl&nbsp;or&nbsp;metal&nbsp;framed&nbsp;window&nbsp;system.</span><span style="background-color: transparent; color: inherit;">*&nbsp;(Option&nbsp;2)&nbsp;installing&nbsp;the&nbsp;glass&nbsp;blocks&nbsp;one&nbsp;by&nbsp;one&nbsp;inside&nbsp;of&nbsp;the&nbsp;opening.</span><span style="background-color: transparent; color: inherit;">A&nbsp;benefit&nbsp;of&nbsp;glass&nbsp;block&nbsp;is&nbsp;it's&nbsp;a&nbsp;heavy&nbsp;material,&nbsp;the&nbsp;challenge&nbsp;is&nbsp;it's&nbsp;a&nbsp;heavy&nbsp;material&nbsp;when&nbsp;you're&nbsp;installing&nbsp;it!&nbsp;For&nbsp;most&nbsp;openings&nbsp;less&nbsp;than&nbsp;25&nbsp;square&nbsp;feet&nbsp;consider&nbsp;option&nbsp;1,&nbsp;the&nbsp;block&nbsp;window&nbsp;built&nbsp;as&nbsp;panel&nbsp;(or&nbsp;section)&nbsp;vs.&nbsp;option&nbsp;2.&nbsp;Option&nbsp;2&nbsp;is&nbsp;usually&nbsp;more&nbsp;difficult,&nbsp;costly,&nbsp;and&nbsp;requires&nbsp;a&nbsp;higher&nbsp;skill&nbsp;level.&nbsp;For&nbsp;the&nbsp;first&nbsp;option&nbsp;you&nbsp;can&nbsp;get&nbsp;a&nbsp;block&nbsp;window&nbsp;panel&nbsp;built&nbsp;by&nbsp;a&nbsp;glass&nbsp;block&nbsp;window&nbsp;manufacturer,&nbsp;often&nbsp;saving&nbsp;time&nbsp;and&nbsp;money.</span><span style="background-color: transparent; color: inherit;">o&nbsp;Step&nbsp;2&nbsp;-&nbsp;Ask,&nbsp;"Where&nbsp;is&nbsp;this&nbsp;block&nbsp;window&nbsp;going?"&nbsp;A&nbsp;key&nbsp;factor&nbsp;in&nbsp;the&nbsp;block&nbsp;window&nbsp;installation&nbsp;is&nbsp;if&nbsp;the&nbsp;glass&nbsp;window&nbsp;is&nbsp;going&nbsp;in&nbsp;new&nbsp;construction&nbsp;or&nbsp;a&nbsp;remodeling&nbsp;project,&nbsp;and&nbsp;whether&nbsp;the&nbsp;surrounding&nbsp;construction&nbsp;is&nbsp;masonry&nbsp;(poured&nbsp;concrete&nbsp;or&nbsp;concrete&nbsp;blocks)&nbsp;or&nbsp;frame&nbsp;(surrounded&nbsp;by&nbsp;wood).&nbsp;Here&nbsp;are&nbsp;some&nbsp;recommendations&nbsp;for&nbsp;each&nbsp;job&nbsp;condition:</span><span style="background-color: transparent; color: inherit;">*&nbsp;New&nbsp;construction&nbsp;projects&nbsp;in&nbsp;framed&nbsp;openings&nbsp;-&nbsp;For&nbsp;new&nbsp;construction&nbsp;framed&nbsp;openings&nbsp;use&nbsp;a&nbsp;vinyl&nbsp;framed&nbsp;nail&nbsp;in&nbsp;glass&nbsp;block&nbsp;window.&nbsp;Consult&nbsp;your&nbsp;glass&nbsp;window&nbsp;manufacturer&nbsp;for&nbsp;the&nbsp;size&nbsp;to&nbsp;create&nbsp;your&nbsp;rough&nbsp;framed&nbsp;opening.&nbsp;These&nbsp;windows&nbsp;(which&nbsp;are&nbsp;usually&nbsp;siliconed&nbsp;together&nbsp;for&nbsp;an&nbsp;all&nbsp;glass&nbsp;look)&nbsp;can&nbsp;be&nbsp;purchased&nbsp;with&nbsp;nailing&nbsp;fins&nbsp;to&nbsp;simply&nbsp;nail&nbsp;in&nbsp;from&nbsp;the&nbsp;outside&nbsp;just&nbsp;like&nbsp;a&nbsp;traditional&nbsp;vinyl&nbsp;window&nbsp;in&nbsp;new&nbsp;construction.&nbsp;Since&nbsp;they&nbsp;can&nbsp;be&nbsp;manufactured&nbsp;with&nbsp;the&nbsp;2"&nbsp;thick&nbsp;series&nbsp;of&nbsp;blocks&nbsp;(in&nbsp;either&nbsp;a&nbsp;high&nbsp;privacy&nbsp;"Ice"&nbsp;pattern&nbsp;or&nbsp;"Wave"&nbsp;pattern&nbsp;from&nbsp;Mulia&nbsp;Inc.)&nbsp;they&nbsp;are&nbsp;lighter&nbsp;than&nbsp;traditional&nbsp;block&nbsp;windows.&nbsp;These&nbsp;windows&nbsp;can&nbsp;also&nbsp;be&nbsp;purchased&nbsp;for&nbsp;the&nbsp;3"&nbsp;and&nbsp;4"&nbsp;thick&nbsp;series&nbsp;of&nbsp;blocks&nbsp;as&nbsp;well&nbsp;if&nbsp;you'd&nbsp;like&nbsp;to&nbsp;try&nbsp;one&nbsp;of&nbsp;the&nbsp;upscale&nbsp;designed&nbsp;Beveled&nbsp;or&nbsp;Spyra&nbsp;series&nbsp;of&nbsp;blocks&nbsp;from&nbsp;Pittsburgh&nbsp;Corning.</span><span style="background-color: transparent; color: inherit;">*&nbsp;New&nbsp;construction&nbsp;projects&nbsp;in&nbsp;masonry&nbsp;openings&nbsp;-&nbsp;For&nbsp;most&nbsp;masonry&nbsp;openings&nbsp;under&nbsp;25&nbsp;square&nbsp;feet&nbsp;it&nbsp;is&nbsp;best&nbsp;to&nbsp;purchase&nbsp;mortared&nbsp;or&nbsp;siliconed&nbsp;block&nbsp;panels&nbsp;that&nbsp;can&nbsp;be&nbsp;set&nbsp;into&nbsp;the&nbsp;opening&nbsp;and&nbsp;mortared&nbsp;in&nbsp;at&nbsp;the&nbsp;top&nbsp;(also&nbsp;called&nbsp;the&nbsp;head),&nbsp;sides&nbsp;(also&nbsp;called&nbsp;the&nbsp;jambs),&nbsp;and&nbsp;bottom&nbsp;(also&nbsp;called&nbsp;the&nbsp;sill).</span><span style="background-color: transparent; color: inherit;">*&nbsp;Remodeling&nbsp;projects&nbsp;in&nbsp;framed&nbsp;openings&nbsp;-</span><span style="background-color: transparent; color: inherit;">-&nbsp;(Option&nbsp;A)&nbsp;If&nbsp;you&nbsp;can&nbsp;adjust&nbsp;your&nbsp;openings&nbsp;to&nbsp;fit&nbsp;one&nbsp;of&nbsp;the&nbsp;vinyl&nbsp;framed&nbsp;glass&nbsp;block&nbsp;windows&nbsp;you&nbsp;can&nbsp;install&nbsp;your&nbsp;project&nbsp;like&nbsp;a&nbsp;standard&nbsp;vinyl&nbsp;replacement&nbsp;window&nbsp;(make&nbsp;sure&nbsp;the&nbsp;window&nbsp;manufacturer&nbsp;takes&nbsp;the&nbsp;window&nbsp;nailing&nbsp;fins&nbsp;off&nbsp;for&nbsp;this&nbsp;type&nbsp;of&nbsp;installation)&nbsp;by&nbsp;placing&nbsp;the&nbsp;vinyl&nbsp;window&nbsp;in&nbsp;the&nbsp;opening,&nbsp;insulating&nbsp;around&nbsp;the&nbsp;window,&nbsp;and&nbsp;installing&nbsp;aluminum&nbsp;coil&nbsp;stock&nbsp;capping&nbsp;to&nbsp;meet&nbsp;the&nbsp;glass&nbsp;block&nbsp;window.</span><span style="background-color: transparent; color: inherit;">-&nbsp;(Option&nbsp;B)&nbsp;If&nbsp;you&nbsp;can't&nbsp;adjust&nbsp;your&nbsp;existing&nbsp;wood&nbsp;opening&nbsp;then&nbsp;remove&nbsp;the&nbsp;existing&nbsp;window&nbsp;sashes&nbsp;and&nbsp;mortar&nbsp;the&nbsp;glass&nbsp;block&nbsp;into&nbsp;the&nbsp;wood&nbsp;opening&nbsp;and&nbsp;install&nbsp;aluminum&nbsp;coil&nbsp;stock&nbsp;to&nbsp;the&nbsp;block&nbsp;and&nbsp;caulk&nbsp;where&nbsp;the&nbsp;coil&nbsp;stock&nbsp;meets&nbsp;the&nbsp;glass&nbsp;masonry&nbsp;units.</span><span style="background-color: transparent; color: inherit;">*&nbsp;Remodeling&nbsp;projects&nbsp;in&nbsp;masonry&nbsp;openings&nbsp;(concrete&nbsp;blocks&nbsp;or&nbsp;poured&nbsp;walls)&nbsp;-&nbsp;In&nbsp;remodeling&nbsp;projects&nbsp;measure&nbsp;the&nbsp;entire&nbsp;size&nbsp;of&nbsp;the&nbsp;masonry&nbsp;openings&nbsp;with&nbsp;the&nbsp;existing&nbsp;frame&nbsp;being&nbsp;removed&nbsp;(the&nbsp;only&nbsp;time&nbsp;you&nbsp;don't&nbsp;remove&nbsp;the&nbsp;metal&nbsp;or&nbsp;wood&nbsp;frames&nbsp;is&nbsp;when&nbsp;the&nbsp;frame&nbsp;is&nbsp;either&nbsp;seated&nbsp;over&nbsp;the&nbsp;concrete&nbsp;blocks&nbsp;or&nbsp;poured&nbsp;walls&nbsp;and&nbsp;removing&nbsp;them&nbsp;might&nbsp;cause&nbsp;damage&nbsp;to&nbsp;the&nbsp;surrounding&nbsp;interior&nbsp;or&nbsp;exterior&nbsp;walls).&nbsp;Then&nbsp;size&nbsp;your&nbsp;block&nbsp;window&nbsp;panels&nbsp;to&nbsp;be&nbsp;smaller&nbsp;than&nbsp;the&nbsp;masonry&nbsp;openings&nbsp;(these&nbsp;block&nbsp;windows&nbsp;can&nbsp;be&nbsp;sized&nbsp;basically&nbsp;in&nbsp;any&nbsp;2"&nbsp;size&nbsp;increment).&nbsp;The&nbsp;window&nbsp;panels&nbsp;can&nbsp;then&nbsp;be&nbsp;mortared&nbsp;into&nbsp;the&nbsp;openings.</span><span style="background-color: transparent; color: inherit;">o&nbsp;Step&nbsp;3&nbsp;-&nbsp;Ask,&nbsp;"What&nbsp;should&nbsp;I&nbsp;use&nbsp;to&nbsp;put&nbsp;the&nbsp;glass&nbsp;block&nbsp;together&nbsp;into&nbsp;a&nbsp;window&nbsp;panel&nbsp;assembly?"&nbsp;-&nbsp;You&nbsp;might&nbsp;have&nbsp;heard&nbsp;varied&nbsp;opinions&nbsp;about&nbsp;how&nbsp;the&nbsp;block&nbsp;panel&nbsp;should&nbsp;be&nbsp;assembled&nbsp;(the&nbsp;most&nbsp;common&nbsp;methods&nbsp;are&nbsp;using&nbsp;mortar&nbsp;or&nbsp;silicone).&nbsp;While&nbsp;some&nbsp;companies&nbsp;may&nbsp;tell&nbsp;you&nbsp;that&nbsp;only&nbsp;one&nbsp;method&nbsp;is&nbsp;correct,&nbsp;they&nbsp;are&nbsp;often&nbsp;just&nbsp;trying&nbsp;to&nbsp;get&nbsp;people&nbsp;to&nbsp;buy&nbsp;the&nbsp;fabrication&nbsp;method&nbsp;they&nbsp;prefer.&nbsp;You&nbsp;should&nbsp;choose&nbsp;that&nbsp;method&nbsp;where&nbsp;the&nbsp;panel&nbsp;size&nbsp;is&nbsp;going&nbsp;to&nbsp;fit&nbsp;best&nbsp;into&nbsp;the&nbsp;opening&nbsp;(making&nbsp;sure&nbsp;the&nbsp;joints&nbsp;do&nbsp;not&nbsp;exceed&nbsp;1"&nbsp;around&nbsp;the&nbsp;window).&nbsp;Included&nbsp;below&nbsp;you'll&nbsp;find&nbsp;some&nbsp;advantages&nbsp;of&nbsp;both&nbsp;the&nbsp;mortar&nbsp;and&nbsp;silicone&nbsp;systems:</span><span style="background-color: transparent; color: inherit;">-&nbsp;Advantages&nbsp;of&nbsp;Mortar&nbsp;over&nbsp;Silicone&nbsp;-&nbsp;Mortar&nbsp;is&nbsp;the&nbsp;traditional&nbsp;way&nbsp;to&nbsp;build&nbsp;a&nbsp;block&nbsp;window.&nbsp;The&nbsp;advantages&nbsp;of&nbsp;this&nbsp;system&nbsp;are&nbsp;the&nbsp;ability&nbsp;to&nbsp;vary&nbsp;the&nbsp;size&nbsp;of&nbsp;the&nbsp;mortar&nbsp;joint&nbsp;(helpful&nbsp;when&nbsp;you&nbsp;have&nbsp;an&nbsp;odd&nbsp;size),&nbsp;the&nbsp;mortar&nbsp;joints&nbsp;can&nbsp;be&nbsp;finished&nbsp;to&nbsp;match&nbsp;the&nbsp;existing&nbsp;masonry,&nbsp;and&nbsp;it's&nbsp;very&nbsp;difficult&nbsp;to&nbsp;break&nbsp;a&nbsp;block&nbsp;out&nbsp;of&nbsp;mortared&nbsp;joint.</span><span style="background-color: transparent; color: inherit;">-&nbsp;Advantages&nbsp;of&nbsp;Silicone&nbsp;-&nbsp;Silicone&nbsp;is&nbsp;preferred&nbsp;if&nbsp;you&nbsp;like&nbsp;an&nbsp;all&nbsp;glass&nbsp;look&nbsp;to&nbsp;your&nbsp;panel,&nbsp;or&nbsp;if&nbsp;you&nbsp;need&nbsp;a&nbsp;smaller&nbsp;window&nbsp;in&nbsp;an&nbsp;opening&nbsp;(silicone&nbsp;joints&nbsp;are&nbsp;smaller&nbsp;than&nbsp;mortar&nbsp;joints),&nbsp;and&nbsp;transportation&nbsp;is&nbsp;safer&nbsp;because&nbsp;the&nbsp;glass&nbsp;window&nbsp;will&nbsp;stay&nbsp;together&nbsp;better&nbsp;than&nbsp;with&nbsp;mortar.</span><span style="background-color: transparent; color: inherit;">o&nbsp;Step&nbsp;4&nbsp;-Ask,&nbsp;"How&nbsp;do&nbsp;I&nbsp;handle&nbsp;an&nbsp;opening&nbsp;greater&nbsp;than&nbsp;25&nbsp;square&nbsp;feet?"&nbsp;-&nbsp;When&nbsp;openings&nbsp;become&nbsp;larger&nbsp;than&nbsp;25&nbsp;square&nbsp;feet&nbsp;(mostly&nbsp;in&nbsp;commercial,&nbsp;architectural&nbsp;and&nbsp;institutional&nbsp;projects)&nbsp;it&nbsp;is&nbsp;often&nbsp;better&nbsp;to&nbsp;build&nbsp;the&nbsp;window&nbsp;block&nbsp;by&nbsp;block&nbsp;within&nbsp;the&nbsp;opening&nbsp;(this&nbsp;is&nbsp;because&nbsp;the&nbsp;panels&nbsp;would&nbsp;need&nbsp;to&nbsp;become&nbsp;larger,&nbsp;heavier,&nbsp;and&nbsp;are&nbsp;more&nbsp;difficult&nbsp;to&nbsp;handle).&nbsp;With&nbsp;openings&nbsp;of&nbsp;this&nbsp;size&nbsp;you&nbsp;will&nbsp;need&nbsp;to&nbsp;keep&nbsp;the&nbsp;following&nbsp;installation&nbsp;points&nbsp;in&nbsp;mind:</span><span style="background-color: transparent; color: inherit;">*&nbsp;The&nbsp;window&nbsp;usually&nbsp;requires&nbsp;a&nbsp;"soft&nbsp;joint"&nbsp;at&nbsp;the&nbsp;top&nbsp;(head),&nbsp;and&nbsp;sides&nbsp;(jambs)&nbsp;of&nbsp;the&nbsp;opening&nbsp;-&nbsp;Windows&nbsp;greater&nbsp;than&nbsp;25&nbsp;square&nbsp;feet&nbsp;need&nbsp;more&nbsp;space&nbsp;for&nbsp;expansion&nbsp;and&nbsp;contraction&nbsp;requiring&nbsp;glass&nbsp;block&nbsp;caulk&nbsp;be&nbsp;used&nbsp;at&nbsp;the&nbsp;jambs&nbsp;and&nbsp;head&nbsp;of&nbsp;the&nbsp;opening&nbsp;along&nbsp;with&nbsp;an&nbsp;expansion&nbsp;strip.&nbsp;For&nbsp;larger&nbsp;openings&nbsp;an&nbsp;aluminum&nbsp;channel&nbsp;will&nbsp;also&nbsp;help&nbsp;with&nbsp;concerns&nbsp;regarding&nbsp;wind&nbsp;loads.</span><span style="background-color: transparent; color: inherit;">*&nbsp;Structural&nbsp;steel&nbsp;or&nbsp;aluminum&nbsp;may&nbsp;be&nbsp;required&nbsp;-&nbsp;To&nbsp;allow&nbsp;for&nbsp;wind&nbsp;loads&nbsp;and&nbsp;structural&nbsp;safety&nbsp;larger&nbsp;openings&nbsp;(greater&nbsp;than&nbsp;20&nbsp;feet&nbsp;high&nbsp;for&nbsp;4"&nbsp;blocks&nbsp;and&nbsp;10&nbsp;feet&nbsp;high&nbsp;for&nbsp;3"&nbsp;blocks,&nbsp;and&nbsp;25&nbsp;feet&nbsp;wide&nbsp;for&nbsp;4"&nbsp;blocks&nbsp;and&nbsp;15&nbsp;feet&nbsp;wide&nbsp;for&nbsp;3"&nbsp;blocks)&nbsp;there&nbsp;should&nbsp;be&nbsp;a&nbsp;metal&nbsp;stiffener&nbsp;put&nbsp;into&nbsp;the&nbsp;glass&nbsp;block&nbsp;window.&nbsp;This&nbsp;stiffener&nbsp;could&nbsp;be&nbsp;a&nbsp;metal&nbsp;hidden&nbsp;plate,&nbsp;an&nbsp;I&nbsp;beam,&nbsp;or&nbsp;a&nbsp;T&nbsp;shaped&nbsp;mullion&nbsp;of&nbsp;steel&nbsp;behind&nbsp;the&nbsp;window/wall.</span><span style="background-color: transparent; color: inherit;">o&nbsp;Step&nbsp;5&nbsp;-&nbsp;Ask,&nbsp;"What&nbsp;should&nbsp;I&nbsp;do&nbsp;if&nbsp;my&nbsp;skills&nbsp;or&nbsp;physical&nbsp;abilities&nbsp;don't&nbsp;allow&nbsp;me&nbsp;to&nbsp;do&nbsp;this&nbsp;type&nbsp;of&nbsp;installation?"&nbsp;-&nbsp;Call&nbsp;a&nbsp;specialty&nbsp;glass&nbsp;block&nbsp;contractor&nbsp;or&nbsp;find&nbsp;a&nbsp;nationwide&nbsp;glass&nbsp;block&nbsp;window&nbsp;manufacturer&nbsp;(to&nbsp;make&nbsp;a&nbsp;pre-made&nbsp;glass&nbsp;panel)&nbsp;to&nbsp;make&nbsp;contract&nbsp;out&nbsp;the&nbsp;installation&nbsp;of&nbsp;this&nbsp;window.&nbsp;This&nbsp;will&nbsp;ease&nbsp;the&nbsp;process,&nbsp;reduce&nbsp;cost,&nbsp;and&nbsp;improve&nbsp;the&nbsp;quality&nbsp;of&nbsp;the&nbsp;block&nbsp;window&nbsp;installation&nbsp;project.</span><span style="background-color: transparent; color: inherit;">Now&nbsp;that&nbsp;you've&nbsp;got&nbsp;the&nbsp;5&nbsp;installation&nbsp;steps&nbsp;you're&nbsp;ready&nbsp;to&nbsp;either&nbsp;to&nbsp;get&nbsp;your&nbsp;hands&nbsp;dirty&nbsp;or&nbsp;hire&nbsp;the&nbsp;right&nbsp;specialty&nbsp;glass&nbsp;block&nbsp;contractor&nbsp;for&nbsp;your&nbsp;project.</span><br><br>