<b>Bricks and blocks are always in the firing line. Andrew Leech looks at some of the big issues facing these traditional materials and the range of innovative solutions on the market to solve the problems</b><br><b> Changes in attitudes, innovative thinking and new regulations all combine to mould the many new products in the home. And this is certainly the case with this month&amp;’s product reviews on doors, windows, heating and fireplaces.</b><br> Windows and door materials and technology are constantly evolving to satisfy a customer that demands security, energy efficiency, sound environmental credentials and, of course, good looks.<p></p><p> Our doors feature (The exclusion of intrusion) focuses on the security factor and its effect on design, but also highlights how rules on disabled access, thermal insulation and sound insulation have influenced door specification and selection.</p><p> When it comes to windows (A view of the future), suppliers say that as important as environmental considerations may be, they are just not as important as design - home buyers are still most interested in how good their fenestration looks. On the supply side, window firms and housebuilders are increasingly using partnership arrangements for windows, a set up which has benefits for all parties.</p><p> When it …