diff --git a/src/main/resources/mappers/estimate/estimateMapper.xml b/src/main/resources/mappers/estimate/estimateMapper.xml
index 14db6c75..fb721f5c 100644
--- a/src/main/resources/mappers/estimate/estimateMapper.xml
+++ b/src/main/resources/mappers/estimate/estimateMapper.xml
@@ -396,112 +396,6 @@
     <select id="selectEstimateRoofCertVolKw" parameterType="com.interplug.qcast.biz.estimate.dto.EstimateRequest" resultType="String">
         /* sqlid : com.interplug.qcast.biz.estimate.selectEstimateRoofCertVolKw */
       <![CDATA[
-        ;WITH TCI AS (
-            SELECT
-                TI.CIRCUIT_NO,
-                TI.OBJECT_NO,
-                TI.PLAN_NO,
-                TI.ITEM_ID,
-                TI.CIRCUIT_CFG,
-                COUNT(*) AS P_AMT
-            FROM T_PART_CIRCUIT_ITEM_ESTIMATE TI
-            GROUP BY TI.CIRCUIT_NO, TI.OBJECT_NO, TI.PLAN_NO, TI.ITEM_ID, TI.CIRCUIT_CFG
-        ),
-              Z AS (
-                  SELECT
-                      TRI.ROOF_ITEM_NO,
-                      TRI.OBJECT_NO,
-                      TRI.PLAN_NO,
-                      TRI.ITEM_ID AS M_ITEM_ID,
-                      TRI.ITEM_NO,
-                      TRI.SPECIFICATION AS M_SPEC,
-                      TRI.AMOUNT AS M_AMT,
-                      TCI.ITEM_ID AS P_ITEM_ID,
-                      TRI.PC_ITEM_ID,
-                      TRI.QCAST_CUST_PRD_ID,
-                      TCI.P_AMT
-                          , (SELECT ISNULL(M.PNOW_W,0) FROM M_ITEM M WHERE M.ITEM_ID  = TCI.ITEM_ID) AS P_SPEC
-                          , (SELECT ISNULL(M.PNOW_W,0) FROM M_ITEM M WHERE M.ITEM_ID = TRI.PC_ITEM_ID) AS PC_SPEC
-                          , (SELECT ISNULL(M.PNOW_W,0) FROM M_ITEM M WHERE M.ITEM_ID = TRI.QCAST_CUST_PRD_ID) AS CUST_SPEC
-                          ,TCI.CIRCUIT_CFG
-                  FROM T_PART_ROOF_ITEM_ESTIMATE TRI
-                           INNER JOIN TCI
-                                      ON TRI.ROOF_ITEM_NO = TCI.CIRCUIT_NO
-                                          AND TRI.OBJECT_NO = TCI.OBJECT_NO
-                                          AND TRI.PLAN_NO  = TCI.PLAN_NO
-                  WHERE
-                      TRI.OBJECT_NO = #{objectNo}
-                    AND
-                      TRI.PLAN_NO  = #{planNo}
-              ),
-              Z_CFG AS (
-                  SELECT
-                      Z.*,
-                      CAST(ISNULL(SPLIT.M_1, 0) AS INT) AS M_1,
-                      CAST(ISNULL(SPLIT.M_2, 0) AS INT) AS M_2,
-                      CAST(ISNULL(SPLIT.M_3, 0) AS INT) AS M_3
-                  FROM Z
-             CROSS APPLY (
-             SELECT
-             X.value('(/x[1]/v[1])[1]', 'VARCHAR(50)') AS M_1,
-             X.value('(/x[1]/v[2])[1]', 'VARCHAR(50)') AS M_2,
-             X.value('(/x[1]/v[3])[1]', 'VARCHAR(50)') AS M_3
-             FROM (
-             SELECT CAST('<x><v>' + REPLACE(ISNULL(Z.CIRCUIT_CFG, ''), ',', '</v><v>') + '</v></x>' AS XML)
-             ) A(X)
-             ) SPLIT
-             ),
-             Y AS (
-         SELECT
-             ZC.ROOF_ITEM_NO,
-             ZC.M_ITEM_ID,
-             ZC.M_SPEC,
-             ZC.M_AMT,
-             (ZC.M_1 + ZC.M_2 + ZC.M_3) AS M_AMT2,
-             ZC.P_ITEM_ID,
-             ZC.P_AMT,
-             ZC.PC_ITEM_ID,
-             ZC.QCAST_CUST_PRD_ID,
-             CASE
-             WHEN  ZC.P_SPEC != '0' THEN P_SPEC
-             WHEN  ZC.CUST_SPEC != '0' THEN CUST_SPEC
-             WHEN  ZC.PC_SPEC != '0' THEN PC_SPEC
-             ELSE '0'
-             END
-             AS P_SPEC,
-             (SELECT SPECIFICATION
-             FROM T_PART_ROOF_ITEM_ESTIMATE
-             WHERE OBJECT_NO = ZC.OBJECT_NO
-             AND PLAN_NO = ZC.PLAN_NO
-             AND ROOF_ITEM_NO = (ZC.ROOF_ITEM_NO + 1)) AS M_SPEC2
-         FROM Z_CFG ZC
-             INNER JOIN T_PART_ESTIMATE TE
-         ON ZC.OBJECT_NO = TE.OBJECT_NO
-             AND ZC.PLAN_NO  = TE.PLAN_NO
-             AND TE.ITEM_ID IN (ZC.P_ITEM_ID, ZC.PC_ITEM_ID, ZC.QCAST_CUST_PRD_ID)
-             ),
-             X AS (
-         SELECT
-             Y.M_ITEM_ID,
-             Y.M_SPEC,
-             (Y.M_AMT2 - Y.M_AMT) AS M_CNT,
-             ROUND((Y.M_AMT  * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4) AS M_VOL,
-             ROUND((Y.M_AMT2 * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4) AS M_VOL2,
-             ROUND(((Y.M_AMT2 - Y.M_AMT) * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4) AS R_VOL,
-             CASE
-             WHEN Y.M_AMT < Y.M_AMT2
-             THEN ROUND((Y.M_AMT * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4)
-             ELSE
-             ROUND((Y.M_AMT2 * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4)
-             END AS M_VOL_KW,
-             ROUND((Y.P_AMT * CAST(ISNULL(Y.P_SPEC, 0) AS FLOAT) / 1000), 4) AS PC_VOL_KW,
-             CASE
-             WHEN 0 < (Y.M_AMT2 - Y.M_AMT)
-             THEN ROUND(((Y.M_AMT2 - Y.M_AMT) * CAST(ISNULL(Y.M_SPEC2, 0) AS FLOAT) / 1000), 4)
-             ELSE 0
-             END AS M_VOL_KW2
-         FROM Y
-             )
         SELECT
             CAST(
                     SUM(
@@ -512,8 +406,106 @@
                                 END
                     ) AS DECIMAL(18,3)
             ) AS CERT_VOL_KW
-        FROM
-            X;
+        FROM (
+                 SELECT DISTINCT
+                     Y.M_ITEM_ID,
+                     Y.M_SPEC,
+                     (Y.M_AMT2 - Y.M_AMT) AS M_CNT,
+                     ROUND((Y.M_AMT  * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4) AS M_VOL,
+                     ROUND((Y.M_AMT2 * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4) AS M_VOL2,
+                     ROUND(((Y.M_AMT2 - Y.M_AMT) * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4) AS R_VOL,
+                     CASE
+                         WHEN Y.M_AMT < Y.M_AMT2
+                             THEN ROUND((Y.M_AMT * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4)
+                         ELSE
+                             ROUND((Y.M_AMT2 * CAST(ISNULL(Y.M_SPEC, 0) AS FLOAT) / 1000), 4)
+                         END AS M_VOL_KW,
+                     ROUND((Y.P_AMT * CAST(ISNULL(Y.P_SPEC, 0) AS FLOAT) / 1000), 4) AS PC_VOL_KW,
+                     CASE
+                         WHEN 0 < (Y.M_AMT2 - Y.M_AMT)
+                             THEN ROUND(((Y.M_AMT2 - Y.M_AMT) * CAST(ISNULL(Y.M_SPEC2, 0) AS FLOAT) / 1000), 4)
+                         ELSE 0
+                         END AS M_VOL_KW2
+                 FROM (
+                          SELECT
+                              ZC.ROOF_ITEM_NO,
+                              ZC.M_ITEM_ID,
+                              ZC.M_SPEC,
+                              ZC.M_AMT,
+                              (ZC.M_1 + ZC.M_2 + ZC.M_3) AS M_AMT2,
+                              ZC.P_ITEM_ID,
+                              ZC.P_AMT,
+                              ZC.PC_ITEM_ID,
+                              ZC.QCAST_CUST_PRD_ID,
+                              CASE
+                                  WHEN ZC.P_SPEC != '0' THEN P_SPEC
+                                  WHEN ZC.CUST_SPEC != '0' THEN CUST_SPEC
+                                  WHEN ZC.PC_SPEC != '0' THEN PC_SPEC
+                                  ELSE '0'
+                                  END AS P_SPEC,
+                              (SELECT SPECIFICATION
+                               FROM T_PART_ROOF_ITEM_ESTIMATE
+                               WHERE OBJECT_NO = ZC.OBJECT_NO
+                                 AND PLAN_NO = ZC.PLAN_NO
+                                 AND ROOF_ITEM_NO = (ZC.ROOF_ITEM_NO + 1)) AS M_SPEC2
+                          FROM (
+                                   SELECT
+                                       Z.*,
+                                       CAST(ISNULL(SPLIT.M_1, 0) AS INT) AS M_1,
+                                       CAST(ISNULL(SPLIT.M_2, 0) AS INT) AS M_2,
+                                       CAST(ISNULL(SPLIT.M_3, 0) AS INT) AS M_3
+                                   FROM (
+                                            SELECT
+                                                TRI.ROOF_ITEM_NO,
+                                                TRI.OBJECT_NO,
+                                                TRI.PLAN_NO,
+                                                TRI.ITEM_ID AS M_ITEM_ID,
+                                                TRI.ITEM_NO,
+                                                TRI.SPECIFICATION AS M_SPEC,
+                                                TRI.AMOUNT AS M_AMT,
+                                                TCI.ITEM_ID AS P_ITEM_ID,
+                                                TRI.PC_ITEM_ID,
+                                                TRI.QCAST_CUST_PRD_ID,
+                                                TCI.P_AMT,
+                                                (SELECT ISNULL(M.PNOW_W,0) FROM M_ITEM M WHERE M.ITEM_ID  = TCI.ITEM_ID) AS P_SPEC,
+                                                (SELECT ISNULL(M.PNOW_W,0) FROM M_ITEM M WHERE M.ITEM_ID = TRI.PC_ITEM_ID) AS PC_SPEC,
+                                                (SELECT ISNULL(M.PNOW_W,0) FROM M_ITEM M WHERE M.ITEM_ID = TRI.QCAST_CUST_PRD_ID) AS CUST_SPEC,
+                                                TCI.CIRCUIT_CFG
+                                            FROM T_PART_ROOF_ITEM_ESTIMATE TRI
+                                                     INNER JOIN (
+                                                SELECT
+                                                    TI.CIRCUIT_NO,
+                                                    TI.OBJECT_NO,
+                                                    TI.PLAN_NO,
+                                                    TI.ITEM_ID,
+                                                    TI.CIRCUIT_CFG,
+                                                    COUNT(*) AS P_AMT
+                                                FROM T_PART_CIRCUIT_ITEM_ESTIMATE TI
+                                                GROUP BY TI.CIRCUIT_NO, TI.OBJECT_NO, TI.PLAN_NO, TI.ITEM_ID, TI.CIRCUIT_CFG
+                                            ) TCI
+                                                                ON TRI.ROOF_ITEM_NO = TCI.CIRCUIT_NO
+                                                                    AND TRI.OBJECT_NO = TCI.OBJECT_NO
+                                                                    AND TRI.PLAN_NO  = TCI.PLAN_NO
+                                            WHERE
+                                                TRI.OBJECT_NO = #{objectNo}
+                                              AND TRI.PLAN_NO  = #{planNo}
+                                        ) Z
+                                       CROSS APPLY (
+                SELECT
+                    X.value('(/x[1]/v[1])[1]', 'VARCHAR(50)') AS M_1,
+                    X.value('(/x[1]/v[2])[1]', 'VARCHAR(50)') AS M_2,
+                    X.value('(/x[1]/v[3])[1]', 'VARCHAR(50)') AS M_3
+                FROM (
+                    SELECT CAST('<x><v>' + REPLACE(ISNULL(Z.CIRCUIT_CFG, ''), ',', '</v><v>') + '</v></x>' AS XML)
+                ) A(X)
+            ) SPLIT
+                               ) ZC
+                                   INNER JOIN T_PART_ESTIMATE TE
+                                              ON ZC.OBJECT_NO = TE.OBJECT_NO
+                                                  AND ZC.PLAN_NO  = TE.PLAN_NO
+                                                  AND TE.ITEM_ID IN (ZC.P_ITEM_ID, ZC.PC_ITEM_ID, ZC.QCAST_CUST_PRD_ID)
+                      ) Y
+             ) X
         ]]>
 
     </select>