diff --git a/.appveyor.yml b/.appveyor.yml
index 008636fbd68ac6c8d458f01de918c0a179249e38..81ef526123df12e48705d45da1a643ffa0151264 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -7,8 +7,10 @@ environment:
   matrix:
 #  - BUILD: 'Debug'
 #    CONFIG: debug
+#    SHADOW_BUILD_DIR: $(APPVEYOR_BUILD_FOLDER)\build_windows_debug
   - BUILD: 'Release'
     CONFIG: installer
+    SHADOW_BUILD_DIR: $(APPVEYOR_BUILD_FOLDER)\build_windows_install
 
 install:
   - git submodule update --init --recursive
@@ -18,14 +20,14 @@ install:
   - if "%CONFIG%" EQU "installer" ( cinst nsis -y -installArgs /D="%programfiles(x86)%\NSIS" )
 
 build_script:
-  - C:\Qt\5.5\msvc2013\bin\qmake -r CONFIG-=debug_and_release CONFIG+=%CONFIG% CONFIG+=WarningsAsErrorsOn qgroundcontrol.pro
-  - jom
+  - mkdir %SHADOW_BUILD_DIR% && cd %SHADOW_BUILD_DIR% && C:\Qt\5.5\msvc2013\bin\qmake -r CONFIG-=debug_and_release CONFIG+=%CONFIG% CONFIG+=WarningsAsErrorsOn %APPVEYOR_BUILD_FOLDER%\qgroundcontrol.pro
+  - cd %SHADOW_BUILD_DIR% && jom
 
 test_script:
-  - if "%CONFIG%" EQU "debug" ( debug\qgroundcontrol --unittest )
+  - if "%CONFIG%" EQU "debug" ( %SHADOW_BUILD_DIR%\debug\qgroundcontrol --unittest )
 
 artifacts:
-  - path: 'release\qgroundcontrol-installer.exe'
+  - path: '%SHADOW_BUILD_DIR%\release\qgroundcontrol-installer.exe'
     name: s3
 
 deploy:
@@ -37,11 +39,11 @@ deploy:
     bucket: qgroundcontrol
     set_public: true
     folder: $(APPVEYOR_REPO_BRANCH)
-    artifact: 'release\qgroundcontrol-installer.exe'
+    artifact: '$(SHADOW_BUILD_DIR)\release\qgroundcontrol-installer.exe'
     on:
       CONFIG: installer
   - provider: GitHub
-    artifact: 'release\qgroundcontrol-installer.exe'
+    artifact: '$(SHADOW_BUILD_DIR)\release\qgroundcontrol-installer.exe'
     draft: false
     prerelease: false
     on:
diff --git a/.travis.yml b/.travis.yml
index 3a8537ddac4a61f62bab55b78110901c01021b8e..5e6c7ec54909d6b7c07c9e43e8d38ef1078f552b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,24 +12,24 @@ matrix:
     fast_finish: true
     include:
         - os: linux
-          env: SPEC=linux-g++-64 CONFIG=debug
+          env: SPEC=linux-g++-64 CONFIG=debug SHADOW_BUILD_DIR=/tmp/build_linux_debug
           sudo: false
         - os: linux
-          env: SPEC=linux-g++-64 CONFIG=installer
+          env: SPEC=linux-g++-64 CONFIG=installer SHADOW_BUILD_DIR=/tmp/build_linux_install
           sudo: false
         - os: osx
           osx_image: xcode7
-          env: SPEC=macx-clang CONFIG=debug QT_FATAL_WARNINGS=1
+          env: SPEC=macx-clang CONFIG=debug QT_FATAL_WARNINGS=1 SHADOW_BUILD_DIR=/tmp/build_macos_debug
         - os: osx
           osx_image: xcode7
-          env: SPEC=macx-clang CONFIG=installer
+          env: SPEC=macx-clang CONFIG=installer SHADOW_BUILD_DIR=/tmp/build_macos_install
 #        - os: android
 #          language: android
-#          env: SPEC=android-g++ CONFIG=debug
+#          env: SPEC=android-g++ CONFIG=debug SHADOW_BUILD_DIR=/tmp/build_android_debug
 #          sudo: false
         - os: android
           language: android
-          env: SPEC=android-g++ CONFIG=installer
+          env: SPEC=android-g++ CONFIG=installer SHADOW_BUILD_DIR=/tmp/build_android_install
           sudo: false
         - os: linux
           env: CONFIG=doxygen
@@ -109,22 +109,22 @@ before_script:
   - ln -s /usr/bin/ccache ~/bin/gcc-4.8
   - export PATH=~/bin:$PATH
   - if [[ "${TRAVIS_OS_NAME}" = "android" && "${CONFIG}" = "installer" && -z ${ANDROID_STOREPASS} ]]; then export CONFIG=release; fi
-  - if [ "${CONFIG}" != "doxygen" ]; then qmake -r qgroundcontrol.pro CONFIG+=${CONFIG} CONFIG+=WarningsAsErrorsOn -spec ${SPEC}; fi
+  - if [ "${CONFIG}" != "doxygen" ]; then mkdir $(SHADOW_BUILD_DIR} && cd $(SHADOW_BUILD_DIR} && qmake -r ${TRAVIS_BUILD_DIR}/qgroundcontrol.pro CONFIG+=${CONFIG} CONFIG+=WarningsAsErrorsOn -spec ${SPEC}; fi
 
 script:
-  - ./tools/update_android_version.sh
+  - ${TRAVIS_BUILD_DIR}/tools/update_android_version.sh
   - echo 'Building QGroundControl' && echo -en 'travis_fold:start:script.1\\r'
-  - if [ "${CONFIG}" != "doxygen" ]; then make -j4; fi
-  - if [ "${CONFIG}" = "doxygen" ]; then cd src && doxygen documentation.dox; fi
+  - if [ "${CONFIG}" != "doxygen" ]; then cd $(SHADOW_BUILD_DIR} && make -j4; fi
+  - if [ "${CONFIG}" = "doxygen" ]; then cd ${TRAVIS_BUILD_DIR}/src && doxygen documentation.dox; fi
   - echo -en 'travis_fold:end:script.1\\r'
-  - if [[ "${TRAVIS_OS_NAME}" = "linux" && "${CONFIG}" = "debug" ]]; then ./debug/qgroundcontrol --unittest; fi
-  - if [[ "${TRAVIS_OS_NAME}" = "osx" && "${CONFIG}" = "debug" ]]; then ./debug/qgroundcontrol.app/Contents/MacOS/qgroundcontrol --unittest; fi
+  - if [[ "${TRAVIS_OS_NAME}" = "linux" && "${CONFIG}" = "debug" ]]; then $(SHADOW_BUILD_DIR}/debug/qgroundcontrol --unittest; fi
+  - if [[ "${TRAVIS_OS_NAME}" = "osx" && "${CONFIG}" = "debug" ]]; then $(SHADOW_BUILD_DIR}/debug/qgroundcontrol.app/Contents/MacOS/qgroundcontrol --unittest; fi
 
 after_success:
   - if [[ "${TRAVIS_OS_NAME}" = "android" && "${TRAVIS_PULL_REQUEST}" = "false" && "${TRAVIS_BRANCH}" = "master" ]]; then
          pip install --user google-api-python-client PyOpenSSL
       && openssl aes-256-cbc -K $encrypted_25db6eb7c3fd_key -iv $encrypted_25db6eb7c3fd_iv -in Google_Play_Android_Developer-bb93ae7d61ca.p12.enc -out android/Google_Play_Android_Developer-bb93ae7d61ca.p12 -d
-      && ./tools/google_play_upload.py org.mavlink.qgroundcontrol release/package/qgroundcontrol.apk
+      && ${TRAVIS_BUILD_DIR}/tools/google_play_upload.py org.mavlink.qgroundcontrol $(SHADOW_BUILD_DIR}/release/package/qgroundcontrol.apk
       ;
     fi
 
@@ -134,7 +134,7 @@ deploy:
     secret_access_key:
       secure: BsLXeXUPsCJdX4tawrDnO8OFK5Hk4kzlDTiyH93En6TbjUargVAWDMcHVj7TUhr7+3Tao1W1zb0G4SJe9kHv+jrky0yE72KvoG3YAON0VXWKizxBAKkgHE2RxSTNAwDeKbi2G6YJfNDescBBfX7zEohShdXglQu7CGaUQKRaiI4=
     bucket: qgroundcontrol
-    local_dir: release/package
+    local_dir: $(SHADOW_BUILD_DIR}/release/package
     upload-dir: ${TRAVIS_BRANCH}
     acl: public_read
     skip_cleanup: true
@@ -145,9 +145,9 @@ deploy:
     api-key:
       secure: K/Zqr/FCC7QvzFxYvBtCinPkacQq2ubJ2qm982+38Zf/KjibVOF1dEbVdrGZmII6Tg5DaQzNXGYkg5PvYmJgT9xRsqeQjeYIUYqYZpAt+HYWA38AVfMU8jip/1P1wmwqD469nzJOBBa8yfsMs6Ca7tBaNl/zTxCRGnAgEzqtkdQ=
     file:
-      - release/package/qgroundcontrol.apk
-      - release/package/qgroundcontrol.dmg
-      - release/package/qgroundcontrol.tar.bz2
+      - $(SHADOW_BUILD_DIR}/release/package/qgroundcontrol.apk
+      - $(SHADOW_BUILD_DIR}/release/package/qgroundcontrol.dmg
+      - $(SHADOW_BUILD_DIR}/release/package/qgroundcontrol.tar.bz2
     skip_cleanup: true
     on:
       tags: true