#C purlin rafter spacing for metal roof how to#
#C purlin rafter spacing for metal roof mods#
#C purlin rafter spacing for metal roof code#

Standard gage, are generally used for roofing No. Submissions with brand names or company names in their titles will be removed. What Are the Common Purlin Spacing for Corrugated Roofing The spacing of purlins on roofs and girts on wall is usually 4 to 6 ft. Even posts which only appear to be self-promotion are subject to deletion and banning, so think carefully before you post.ĭo not post brand names or company names in submission titles. All such posts will be removed and the submitter will be banned.

#C purlin rafter spacing for metal roof mods#

Please note: spam moderation is left to the algorithm and the community, the mods typically do NOT approve posts flagged as spam.ĭo not make submissions or comments that are self-promotion of any kind (ie: promotion of your product, your company, your software, your service - or your employer's) - even if it might otherwise be considered legitimate content. If you cannot get past the spam filter, up your reputation and try again - or have a friend with a better reddit reputation try for you. We welcome roofers, handy-people, homeowners and anyone else who is roof-curious.ĭue to a constant deluge of spam, you must be a regular reddit user and have good karma in order to post to this sub.

It is this type of attention to details which made me want to have my own Hansen Pole Building.Greetings! This sub is for questions, interesting pics or videos and stories about roofing. The typical roof structure now consists of steel I beam rafters placed approximately 10 feet (this varies depending on purlin size and other variables) apart.

#C purlin rafter spacing for metal roof code#

The International Residential Building Code (IRC), which is the basis of most North America’s building coide, identifies these standard industry measurements. Every structural member and connection is checked for the ability to resist the applied snow, wind and seismic forces. The standard roof rafter spacings measured on-center are 12, 16, 19.2, and 24. I have to agree the calculations are awesome, as are the other 150-250 pages which entail the design of every Hansen Pole Building.

#C purlin rafter spacing for metal roof how to#

I won’t pretend that I know how to work those out.” 63 psf steel American Building Components catalogue When the member is used in the roof is called a PURLIN, and when used in the wall it is called a GIRT. The Rafter spans in the Code do not apply to your building, they are prescriptive for stick frame construction. Attached are the calculations for the 2×8 purlins. Purlins to support roof loads are permitted to be installed to reduce the span of rafters within allowable limits and shall be supported by struts to. The allowable lumber species are listed in the General Notes on Page S-0 of your plans. Thank you for your investment in a new Hansen Pole Building. Is this the code information the inspector should use, or is there something else? What species of lumber is to be used for the purlins? The table shows one 2 x 8 that will make a 15ft. span. He gave me a copy of R802.5.1 (3) Rafter spans for common lumber species.

The inspector asked about the type of wood being used as purlins. I explained the layout of roof trusses and purlins on your building design. The reason is I already have a permit for a building that I was designing and building myself. One of my questions was about snow loads. I was confirming my intentions of building a Hansen designed structure. Here is one which went through our Technical Support Department recently: Lots of good stories out there and I have been in the mode to share stories lately.