Show ASLANT ROOF AND V 1 CAVE ON REPAIRS C I 1 too little pitch Is cause of much trouble g i P gentle slopes may be all right in the corn com field but they are certainly out of place on the roof ot of the poultry house according to 11 II P twitchell extension specialist in a agricultural ri engineering at tile the ahro ohio state university one reason he says why the root roof of the poultry house requires mending or replacing quicker than any other type of farm building is that they are usually hat flat often having a pitch of but one oae inch to the foot such gentle slopes eliminate the use of tuch such roofing materials as state blate shingles and ordinary metal roof ings which are not suited to small P pitches itches As a result composition roll roofing hat has been about the only material used this type of ft root roof Is satisfactory for only one or two seasons the best method of repairing an old composition root roof Is to convert it into a built up root roof twitchell points out this roof which consists of several layers or of roofing paper cemented down with hot roofing asphalt often lasts fasts for more than 13 years the cost of converting an old composition root roof into a built up root roof Is less than that ot of laying a new roof in the new roofs roo twitchell says it Is a good idea to first go over the old root roof and be sure that it Is perfectly smooth old nails should be driven in metal strips removed and wrinkles leveled out after the old roof has been gone over and made fast to the roofing boards tar paper or roofing felt Is laid in laying the roofing felt hot asphalt Is mopped on a small area at a lower end of 0 the root roof where it Is desired to start the roll then the roll of 0 felt Is placed in position on the freshly applied asphalt before it has time to harden arden li more asphalt Is mopped on the surface and the felt unrolled as quickly as the asphalt Is applied appele d only a ribbon of asphalt as wide as the roll Is spread over the root roof surface each strip Is laid balf bait way over the preceding strip and the whole covered with a finishing coat ot of hot asphalt |