Graphical Construction Glossary >> Roofs and roofing. >> Butterfly roof
I have seen a few of these on service station forecourts and the like, and the principal is the maximum amount of cover, but with only one point for a downpipe. Little need for any other rainwater control.
In a similar vein these roof forms are used a lot in older adjoining inner city properties where fire regulations etc. dictate the use of party or firewalls between occupancies. In this case one central valley gutter with one downpipe is better than one at either side.
If you didn't find exactly what you are looking for try this search tool that will search the site and the web.
"What can be added to the happiness of a man who is in health, out of debt, and has a clear conscience?
"When we build, let us think that we build for ever."John Ruskin 1819-1900
Furniture Fittings - Architectural Hardware - Electronic Locking Systems - Technical Hardware
Roof Glossary and Roofing
Formwork Glossary and other tempory work.
Hand Tools Glossary
Power Tools Glossary
Calculator Pages.Concrete yardage calculator
Reader's Questions.Questions and answers.
Please Note! The information on this site is offered as a guide only! When we are talking about areas where building regulations or safety regulations could exist,the information here could be wrong for your area. It could be out of date! Regulations breed faster than rabbits!
You must check your own local conditions.
Copyright © Bill Bradley 2007-2012. All rights reserved.