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Cost Estimate - Sunken rafters under the roof (showing dips in the roof)
Hi, How much does it cost to fix sunken rafters under the roof? The sunken rafters are causing dips in the roof. What is the average cost "per rafter" ?? Are these a common problem? Is it vital to fix them asap? |
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Cost Estimate - Sunken rafters under the roof (showing dips in the roof)
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Cost Estimate - Sunken rafters under the roof (showing dips in the roof)
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Cost Estimate - Sunken rafters under the roof (showing dips in the roof)
Hi,
Dips in the roof are caused by a number of ailments all related to each other. First you'll need a ball of string or a chaulk line. String the bottom of the ridge to check it for sag. Next, string across the bottom of the rafters from gable to gable at their midpoints to check for sag. Post under the ridge to make it as close to straight as possible, without causing damage to ceilings or walls(taking into consideration that too much movement will result in cracks in your plaster). Cut 2x4's to a length 1/2 inch longer than the height from joist to rafter at mid-rafter span. Use these to wedge each rafter up by footing on joist and bending it under the rafter. Rafters will straighten when these temps are posted under the rafter. Do this for each rafter pair(front & back make one pair) and check across gable to gable for staightness. After a rafter is straight, with the temp still in place, you'll need to install collar ties at 1/3 the height down of rafter to joist measurement. As you can see, this is quite involved and more likely a job for an experienced framer. Not just any woodworker. |
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