![]() There are also some other key factors to take into consideration – do you want to allow for solar panels or similar energy-efficient or “green” features?ĭo you want the extra living or storage space that comes with a costlier mansard or gambrel roof, or would you prefer something more budget-friendly? Have you recently experienced a major weather event or a natural disaster like roof hail damage?Īll of these questions and more should be considered when you are considering buying a new property, building a home, or replacing and updating the roof on your home. What’s more, the type of roof that you have can also make your home more energy-efficient, more weatherproof, and provide extra storage or even additional living space in the form of an attic.ĭo you know what type of roof you currently have or the details of the roofing system on the property you are considering purchasing?Īre you planning on building a home, getting a new roof, or buying a new home anytime soon? However, the type or style of roof that you have not only affects the aesthetic, or look and feel, of your house, it can also affect the overall value of the property. If there is condensation appearing only at the peak, then it is possible that the roof insulation is not overlapping at the peak correctly.If you are like most of us, you probably don’t think about the type of roof that you have until it needs to be repaired or even replaced.If 4” of insulation, then the roof should measure 7-7/8” from bottom of fascia to top of shingles (if one layer and no venting).If 2” of insulation, then the roof should measure 5-7/8” from bottom of fascia to top of shingles (if one layer and no venting).If 1” of insulation, then the roof should measure 4-3/8” from bottom of fascia to top of shingles (if one layer and no Plywood and no venting).75” fascia overhang + 2.25” for roof decking (+/- depending on year) +. The best way to tell the thickness of the insulation is (if original): The roof decking has changed slightly through the years (different thicknesses and widths) and today’s standard is 5-1/4” wide x 2-1/4” thick.If they are too short, the fastener will not go into the roof decking to hold the roofing correctly if they are too long, the fasteners will go through the decking into the home, wrecking the ceiling. If the roof has been modified, please double check the faster size before installing.Typically the fasteners for roof sheathing (OSB or Plywood) are insulation plus 2”.Reduced potential for membrane splitting in Built Up Roofing (BUR) systems.Reduced moisture migration from the building interior into the roofing system.Reduced thermal loss at insulation joints.Multi-layering of Polyiso roof insulation installed with staggered joints offers a number of advantages, including:.We use GAF/ELK TIMBERLINE PRESTIQUE Lifetime HD Ultra (4ea pr SQ). The reason for this is that many houses in the past used brick or very porous brick, which can cause problems, or the old pan flash needs to be replaced. Take down the chimney to the roof and rebuild it back up.Replace the old skylights with new skylights. ![]() Cover the entire roof in a waterproof underlayment.There are builders/roofers who will only roof a 3-pitch roof if they: We do not recommend SIPS (Structurally Insulated Panels) generally less of an R-value per inch than Dow Tough-R and could leave gaps or channels where air can travel causing condensation issues (banned in Canada).Keep in mind wires run between the roof decking and the insulation.We do not recommend venting a 3-pitch properly-insulated Deck House roof.In the Northern half of the United States, today’s code (differs from town to town) requires an R-value of 49 (if stretch code), which is 8” of Dow Tough-R or Thermax foil faced both sides if local code calls for staggered joints in both directions.
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